I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways. The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend? For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
kc4qlp.commaes-llc.com
On August 7, 2022 4:46:19 PM "Mark L. Hammond" marklhammond@gmail.com wrote:
AO-51 did it (two simultaneous FM xmitters)—but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent.
The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters. Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn’t seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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Mark L. Hammond [N8MH]
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Bob,
I can only comment on the second paragraph of your mail “ I've read about the one ham satellite over Africa. I wonder if there plans for one over North America)”:
We did exchange somehow about a GEO over Americas in the past on this forum. From same, my understanding is that a GEO initiative such as the AMSAT-DL - QARS - Es’Hail 2 collaboration for QO-100 is not feasible in your part of the world and is due to the perceive fact that all American GEO projects as are purely business oriented and will not entertain a HAM transponder on their satellite. Like you I am from a telco background and have dealt with the satellite industry for years, I somehow disagree with that “conclusion” and the only way to make it happen is to get out of our “zone of comfort” and be more proactive, as just a phone call to the right person may change things drastically.
To encourage same I can only quote the President of AMSAT Robert Bankston, KE4AL in the last AMSAT NEWS SERVICE ANS-219. "No one has knocked on our door offering a free ride, nor have we succeeded in our numerous cold call attempts. We need someone on the inside or even a friend of a friend, who can get us in the room. If you know someone and an opportunity, I could use your help. Until next time, thank you for supporting AMSAT. Onward & Upward!”, I guess his message is quite clear, to make it happen we need “a friend of a friend”, the HAM community is well connect and just the right connection may change the world, this is how business works generally and that great projects are achieved.
I just hope for Americas that the President message will be understood and acted upon so that you guys may enjoy a bird such as QO-100 as it is really superbe and change our HAM life for the best this part of the world (thanks to Peter and his team at AMSAT -DL).
My one cent input.
Jean Marc (3B8DU)
On Aug 8, 2022, at 4:40 PM, KC4QLP kc4qlp@midatlanticengineeringservice.com wrote:
I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways.
The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend? For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
kc4qlp.com http://kc4qlp.com/ maes-llc.com http://maes-llc.com/
On August 7, 2022 4:46:19 PM "Mark L. Hammond" marklhammond@gmail.com wrote:
AO-51 did it (two simultaneous FM xmitters)—but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB <amsat-bb@amsat.org mailto:amsat-bb@amsat.org> wrote: Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent. The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters. Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn’t seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
Sent via AMSAT-BB(a)amsat.org http://amsat.org/. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ https://www.amsat.org/about-amsat/
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Mark L. Hammond [N8MH]
Sent via AMSAT-BB(a)amsat.org http://amsat.org/. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ https://www.amsat.org/about-amsat/
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Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
On Mon, Aug 8, 2022, 9:13 PM Jean Marc Momple jean.marc.momple@gmail.com wrote:
Bob,
I can only comment on the second paragraph of your mail “ I've read about the one ham satellite over Africa. I wonder if there plans for one over North America)”:
We did exchange somehow about a GEO over Americas in the past on this forum. From same, my understanding is that a GEO initiative such as the AMSAT-DL - QARS - Es’Hail 2 collaboration for QO-100 is not feasible in your part of the world and is due to the perceive fact that all American GEO projects as are purely business oriented and will not entertain a HAM transponder on their satellite. Like you I am from a telco background and have dealt with the satellite industry for years, I somehow disagree with that “conclusion” and the only way to make it happen is to get out of our “zone of comfort” and be more proactive, as just a phone call to the right person may change things drastically.
To encourage same I can only quote the President of AMSAT Robert Bankston, KE4AL in the last AMSAT NEWS SERVICE ANS-219. "No one has knocked on our door offering a free ride, nor have we succeeded in our numerous cold call attempts. We need someone on *the inside or even a friend of a friend, who can get us in the room.* If you know someone and an opportunity, I could use your help. Until next time, thank you for supporting AMSAT. Onward & Upward!”, I guess his message is quite clear, to make it happen we need “a friend of a friend”, the HAM community is well connect and just the right connection may change the world, this is how business works generally and that great projects are achieved.
I just hope for Americas that the President message will be understood and acted upon so that you guys may enjoy a bird such as QO-100 as it is really superbe and change our HAM life for the best this part of the world (thanks to Peter and his team at AMSAT -DL).
My one cent input.
Jean Marc (3B8DU)
On Aug 8, 2022, at 4:40 PM, KC4QLP < kc4qlp@midatlanticengineeringservice.com> wrote:
I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways.
The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend? For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
kc4qlp.com maes-llc.com
On August 7, 2022 4:46:19 PM "Mark L. Hammond" marklhammond@gmail.com wrote:
AO-51 did it (two simultaneous FM xmitters)—but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB < amsat-bb@amsat.org> wrote:
Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent. The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters. Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn’t seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
--
Mark L. Hammond [N8MH]
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
Probably correct Zach. Also, the commercial operators usually have narrow beamwidth antennas for a single country or group of countries. If I recall the presentations on QO-100, the antennas fitted were 2.4GHz (circular) and 10GHz (linear) horn antennas specifically designed to cover all of the visible part of the planet. 73 David G0MRF
-----Original Message----- From: Zach Metzinger zmetzing@pobox.com To: amsat-bb@amsat.org Sent: Mon, 8 Aug 2022 18:46 Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
-----------------------------------------------------------
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
Since we are on the topic of a GEO sat. Am I the only one the questions the point of a GEO bird from a ham radio perspective? No doppler, no propagation, no antenna pointing, just set up your station and have comms with anyone in the footprint. To me it feels like the internet at that point. I see how this could be a great thing for emergency communications, but not so much for amateur ‘sport’.
I am curious if they would accept this for amateur radio awards like DXCC and VUCC?
Just my thoughts, 73, Joe kk0sd
From: David G0MRF via AMSAT-BB amsat-bb@amsat.org Sent: Monday, August 8, 2022 2:09 PM To: zmetzing@pobox.com; amsat-bb@amsat.org Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
Probably correct Zach.
Also, the commercial operators usually have narrow beamwidth antennas for a single country or group of countries.
If I recall the presentations on QO-100, the antennas fitted were 2.4GHz (circular) and 10GHz (linear) horn antennas specifically designed to cover all of the visible part of the planet.
73
David G0MRF
-----Original Message----- From: Zach Metzinger <zmetzing@pobox.commailto:zmetzing@pobox.com> To: amsat-bb@amsat.orgmailto:amsat-bb@amsat.org Sent: Mon, 8 Aug 2022 18:46 Subject: [AMSAT-BB] Re: Fixing the FM Stompfest On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
-----------------------------------------------------------
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.orghttps://mailman.amsat.org/
On Mon, Aug 8, 2022 at 12:25 PM Gary gary_mayfield@hotmail.com wrote:
Since we are on the topic of a GEO sat. Am I the only one the questions the point of a GEO bird from a ham radio perspective? No doppler, no propagation, no antenna pointing, just set up your station and have comms with anyone in the footprint. To me it feels like the internet at that point. I see how this could be a great thing for emergency communications, but not so much for amateur ‘sport’.
I am curious if they would accept this for amateur radio awards like DXCC and VUCC?
One segment of Amateur Radio is communications for the sport of communications. Just one segment. It is easy to believe that the part of Amateur Radio that you participate in is "Ham Radio". Some folks even go as far as asserting that hams who work otherwise are not "real Hams" - don't be those people.
People who use geostationary satellites so far are doing quite a lot of work simply to get on the air. You can't buy a 10 GHz rig at Gigaparts. Thisis laudable on its own and meritorious of awards. It won't always be that way, but even when you can buy a geostationary rig online, you will be able to use it for public service communications, which have their own merit, and will be able to experiment with new protocols and codecs. This sort of work has again put hams at the forefront of wireless where we were behind for 50 years. For example, nobody in industry designs wireless anything without first implementing it in Gnu Radio.
I think for a long time just being able to access a geostationary satellite and talk to another ham will be worth some points. Just as running a GOTA station or getting in the press gets you some field day points. I don't think you will be able to "win" a contest with that mode alone for very long after the first time someone does it.
Thanks
Bruce
Hi Bruce,
I fully agree. It is a pity you are not in the footprint of QO-100.
I keep my fingers crossed there will be a eventually also a satellite covering North America.
Kind regards
Matthias
www.dd1us.dehttp://www.dd1us.de
Von: Bruce Perens via AMSAT-BB amsat-bb@amsat.org Gesendet: Montag, 8. August 2022 21:48 An: Gary gary_mayfield@hotmail.com Cc: amsat-bb@amsat.org Betreff: [AMSAT-BB] Re: Was: RE: Re: Fixing the FM Stompfest Now: Phase IV satellite
On Mon, Aug 8, 2022 at 12:25 PM Gary <gary_mayfield@hotmail.commailto:gary_mayfield@hotmail.com> wrote: Since we are on the topic of a GEO sat. Am I the only one the questions the point of a GEO bird from a ham radio perspective? No doppler, no propagation, no antenna pointing, just set up your station and have comms with anyone in the footprint. To me it feels like the internet at that point. I see how this could be a great thing for emergency communications, but not so much for amateur ‘sport’.
I am curious if they would accept this for amateur radio awards like DXCC and VUCC?
One segment of Amateur Radio is communications for the sport of communications. Just one segment. It is easy to believe that the part of Amateur Radio that you participate in is "Ham Radio". Some folks even go as far as asserting that hams who work otherwise are not "real Hams" - don't be those people.
People who use geostationary satellites so far are doing quite a lot of work simply to get on the air. You can't buy a 10 GHz rig at Gigaparts. Thisis laudable on its own and meritorious of awards. It won't always be that way, but even when you can buy a geostationary rig online, you will be able to use it for public service communications, which have their own merit, and will be able to experiment with new protocols and codecs. This sort of work has again put hams at the forefront of wireless where we were behind for 50 years. For example, nobody in industry designs wireless anything without first implementing it in Gnu Radio.
I think for a long time just being able to access a geostationary satellite and talk to another ham will be worth some points. Just as running a GOTA station or getting in the press gets you some field day points. I don't think you will be able to "win" a contest with that mode alone for very long after the first time someone does it.
Thanks
Bruce
Hi Joe,
it is a pity you cannot use QO-100 and see how much fun it is.
We already had several DX-pedition challenging the footprint of QO-100 and successfully operated at zero degree elevation or slightly below.
Also QO-100 is used by many operators with a portable setup.
Building a QO-100 groundstation is not rocket science but for many of the 4000+ (?) Hams using QO-100 it was the first time they build a setup for the GHz range (2.3GHz up, 10 GHz down).
Once you are QRV is there is plenty of opportunity to optimize the system especially in order to improve the sensitivity and antenna.
Also a lot of new software has been developed and is used by the community, both for the narrowband transponder including the new high speed multimedia modem but also for the wideband (DATV) transponder.
Kind regards
Matthias
www.dd1us.dehttp://www.dd1us.de
Von: Gary gary_mayfield@hotmail.com Gesendet: Montag, 8. August 2022 21:25 An: amsat-bb@amsat.org Betreff: [AMSAT-BB] Was: RE: Re: Fixing the FM Stompfest Now: Phase IV satellite
Since we are on the topic of a GEO sat. Am I the only one the questions the point of a GEO bird from a ham radio perspective? No doppler, no propagation, no antenna pointing, just set up your station and have comms with anyone in the footprint. To me it feels like the internet at that point. I see how this could be a great thing for emergency communications, but not so much for amateur ‘sport’.
I am curious if they would accept this for amateur radio awards like DXCC and VUCC?
Just my thoughts, 73, Joe kk0sd
From: David G0MRF via AMSAT-BB <amsat-bb@amsat.orgmailto:amsat-bb@amsat.org> Sent: Monday, August 8, 2022 2:09 PM To: zmetzing@pobox.commailto:zmetzing@pobox.com; amsat-bb@amsat.orgmailto:amsat-bb@amsat.org Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
Probably correct Zach.
Also, the commercial operators usually have narrow beamwidth antennas for a single country or group of countries.
If I recall the presentations on QO-100, the antennas fitted were 2.4GHz (circular) and 10GHz (linear) horn antennas specifically designed to cover all of the visible part of the planet.
73
David G0MRF
-----Original Message----- From: Zach Metzinger <zmetzing@pobox.commailto:zmetzing@pobox.com> To: amsat-bb@amsat.orgmailto:amsat-bb@amsat.org Sent: Mon, 8 Aug 2022 18:46 Subject: [AMSAT-BB] Re: Fixing the FM Stompfest On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
-----------------------------------------------------------
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.orghttps://mailman.amsat.org/
Yeah...They even do FT8 there, can you believe it?! :) 73 ED PY2RN On Monday, August 8, 2022 at 04:26:02 PM GMT-3, Gary gary_mayfield@hotmail.com wrote:
Since we are on the topic of a GEO sat. Am I the only one the questions the point of a GEO bird from a ham radio perspective? No doppler, no propagation, no antenna pointing, just set up your station and have comms with anyone in the footprint. To me it feels like the internet at that point. I see how this could be a great thing for emergency communications, but not so much for amateur ‘sport’.
I am curious if they would accept this for amateur radio awards like DXCC and VUCC?
Just my thoughts, 73,
Joe kk0sd
From: David G0MRF via AMSAT-BB amsat-bb@amsat.org Sent: Monday, August 8, 2022 2:09 PM To: zmetzing@pobox.com; amsat-bb@amsat.org Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
Probably correct Zach.
Also, the commercial operators usually have narrow beamwidth antennas for a single country or group of countries.
If I recall the presentations on QO-100, the antennas fitted were 2.4GHz (circular) and 10GHz (linear) horn antennas specifically designed to cover all of the visible part of the planet.
73
David G0MRF
-----Original Message----- From: Zach Metzinger zmetzing@pobox.com To: amsat-bb@amsat.org Sent: Mon, 8 Aug 2022 18:46 Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
-----------------------------------------------------------
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On 8/8/22 17:03, Eduardo PY2RN wrote:
Yeah...They even do FT8 there, can you believe it?!
Push a couple of buttons on your keyboard, call it a "contact". *yawn*
But I can see how it might excite others..
:-)
--- Zach N0ZGO
Engineer (noun)
a person who gets excited about things no one else cares about.
Pietro I2OIM
Il mar 9 ago 2022, 00:08 Zach Metzinger zmetzing@pobox.com ha scritto:
On 8/8/22 17:03, Eduardo PY2RN wrote:
Yeah...They even do FT8 there, can you believe it?!
Push a couple of buttons on your keyboard, call it a "contact". *yawn*
But I can see how it might excite others..
:-)
--- Zach N0ZGO
Exactly Zach, and not only this but a lot of the hardware is different. Yet we did not have to care about the power supply which comes from the host satellite.
Kind regards
Matthias
www.dd1us.de
-----Ursprüngliche Nachricht----- Von: Zach Metzinger zmetzing@pobox.com Gesendet: Montag, 8. August 2022 20:46 An: amsat-bb@amsat.org Betreff: [AMSAT-BB] Re: Fixing the FM Stompfest
On 8/8/22 13:37, Ashhar Farhan wrote:
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
I may be incorrect, but I don't believe the transponders have the passband for our spectrum allocations (as they would be out of band for commercial operations).
--- Zach N0ZGO
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Is the "AMSAT / Virginia Tech Geostationary Satellite Project (Phase 4B)" dead in the water? And any hope for the "ORI's Phase 4 Ground Station and Phase 4 Space" project?
Tom K0CFI
From: Ashhar Farhan farhanbox@gmail.com Sent: Monday, August 8, 2022 11:38 AM To: Jean Marc Momple jean.marc.momple@gmail.com Cc: KC4QLP kc4qlp@midatlanticengineeringservice.com; AMSAT BB amsat-bb@amsat.org Subject: [AMSAT-BB] Re: Fixing the FM Stompfest
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
On Mon, Aug 8, 2022, 9:13 PM Jean Marc Momple <jean.marc.momple@gmail.commailto:jean.marc.momple@gmail.com> wrote: Bob,
I can only comment on the second paragraph of your mail " I've read about the one ham satellite over Africa. I wonder if there plans for one over North America)":
We did exchange somehow about a GEO over Americas in the past on this forum. From same, my understanding is that a GEO initiative such as the AMSAT-DL - QARS - Es'Hail 2 collaboration for QO-100 is not feasible in your part of the world and is due to the perceive fact that all American GEO projects as are purely business oriented and will not entertain a HAM transponder on their satellite. Like you I am from a telco background and have dealt with the satellite industry for years, I somehow disagree with that "conclusion" and the only way to make it happen is to get out of our "zone of comfort" and be more proactive, as just a phone call to the right person may change things drastically.
To encourage same I can only quote the President of AMSAT Robert Bankston, KE4AL in the last AMSAT NEWS SERVICE ANS-219. "No one has knocked on our door offering a free ride, nor have we succeeded in our numerous cold call attempts. We need someone on the inside or even a friend of a friend, who can get us in the room. If you know someone and an opportunity, I could use your help. Until next time, thank you for supporting AMSAT. Onward & Upward!", I guess his message is quite clear, to make it happen we need "a friend of a friend", the HAM community is well connect and just the right connection may change the world, this is how business works generally and that great projects are achieved.
I just hope for Americas that the President message will be understood and acted upon so that you guys may enjoy a bird such as QO-100 as it is really superbe and change our HAM life for the best this part of the world (thanks to Peter and his team at AMSAT -DL).
My one cent input.
Jean Marc (3B8DU)
On Aug 8, 2022, at 4:40 PM, KC4QLP <kc4qlp@midatlanticengineeringservice.commailto:kc4qlp@midatlanticengineeringservice.com> wrote:
I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways.
The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend? For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
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On August 7, 2022 4:46:19 PM "Mark L. Hammond" <marklhammond@gmail.commailto:marklhammond@gmail.com> wrote: AO-51 did it (two simultaneous FM xmitters)-but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB <amsat-bb@amsat.orgmailto:amsat-bb@amsat.org> wrote: Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent. The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters. Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn't seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
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This is not an official statement from any of the organizations named.
ORI is still developing the ground project and satellites, but IMO destroyed the relationship with their most likely funder for any further satellite work. I'm pretty sure the ground project will be completed as that grant was already made and there is lots of money left.
The VT project doesn't have a bird or a ride. This IMO started with vendor outrageous behavior, and then our friend departed FEMA. None of this was in our control. This is the risk when we ride on someone else's satellite. I'm not saying we shouldn't do it, it worked with Quatar, but it should not be the only egg in our basket.
I have another organization working on some of these issues, we are mainly waiting for our 501(c)3 to be granted so that we can handle funds appropriately.
Thanks
Bruce
On Mon, Aug 8, 2022 at 11:46 AM Thomas Talley talleyt@msn.com wrote:
Is the “AMSAT / Virginia Tech Geostationary Satellite Project (Phase 4B)” dead in the water? And any hope for the “ORI's Phase 4 Ground Station and Phase 4 Space” project?
Tom K0CFI
*From:* Ashhar Farhan farhanbox@gmail.com *Sent:* Monday, August 8, 2022 11:38 AM *To:* Jean Marc Momple jean.marc.momple@gmail.com *Cc:* KC4QLP kc4qlp@midatlanticengineeringservice.com; AMSAT BB < amsat-bb@amsat.org> *Subject:* [AMSAT-BB] Re: Fixing the FM Stompfest
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
On Mon, Aug 8, 2022, 9:13 PM Jean Marc Momple jean.marc.momple@gmail.com wrote:
Bob,
I can only comment on the second paragraph of your mail “ I've read about the one ham satellite over Africa. I wonder if there plans for one over North America)”:
We did exchange somehow about a GEO over Americas in the past on this forum. From same, my understanding is that a GEO initiative such as the AMSAT-DL - QARS - Es’Hail 2 collaboration for QO-100 is not feasible in your part of the world and is due to the perceive fact that all American GEO projects as are purely business oriented and will not entertain a HAM transponder on their satellite. Like you I am from a telco background and have dealt with the satellite industry for years, I somehow disagree with that “conclusion” and the only way to make it happen is to get out of our “zone of comfort” and be more proactive, as just a phone call to the right person may change things drastically.
To encourage same I can only quote the President of AMSAT Robert Bankston, KE4AL in the last AMSAT NEWS SERVICE ANS-219. "No one has knocked on our door offering a free ride, nor have we succeeded in our numerous cold call attempts. We need someone on *the inside or even a friend of a friend, who can get us in the room.* If you know someone and an opportunity, I could use your help. Until next time, thank you for supporting AMSAT. Onward & Upward!”, I guess his message is quite clear, to make it happen we need “a friend of a friend”, the HAM community is well connect and just the right connection may change the world, this is how business works generally and that great projects are achieved.
I just hope for Americas that the President message will be understood and acted upon so that you guys may enjoy a bird such as QO-100 as it is really superbe and change our HAM life for the best this part of the world (thanks to Peter and his team at AMSAT -DL).
My one cent input.
Jean Marc (3B8DU)
On Aug 8, 2022, at 4:40 PM, KC4QLP < kc4qlp@midatlanticengineeringservice.com> wrote:
I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways.
The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend?
For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee:
KC4QLP - WQJK414 - WRFT769 - RR00096040
On August 7, 2022 4:46:19 PM "Mark L. Hammond" marklhammond@gmail.com wrote:
AO-51 did it (two simultaneous FM xmitters)—but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB < amsat-bb@amsat.org> wrote:
Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent.
The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters.
Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn’t seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
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“ … there’s too many people on the satellites … “
Wow … what a wonderful “problem” to have to address. “Too many” are using the “easy" satellites.
Categories of users that has been repeatedly mentioned that are causing chaos and mayhem are grid chasers … rovers … hams making contacts for various prestigious awards.
How about changing the Awards’ rules for rovers and grid chasers - to eliminate “prime time” contacts in their logs? No Saturday and Sunday contacts allowed for pure roving and grid chasing for awards.
This will not alter the accomplishments of those who have already received and earned their awards in the slightest.
But if theirs is a category that is frustrating those new to this aspect of the hobby, and we still want to promote getting involved with the “easy birds,” well …
Make it easy for new folks to access. Make it only slightly more effort to graduate to working towards awards. Those award/certificate seekers should welcome the “challenge” of such “time restrictions” remembering that they, too, all began with working an “easy” bird - and that THOSE contacts got them hooked on satellites.
There. Chaos and mayhem dramatically reduced. Long live the “easy” FM satellites!
Clint Bradford K6LCS
Let's see.... Make SATs "off-limits" for the folks who usethem the most. Great Idea!!!!!! (DUH!!) - Bob K8BL
On Monday, August 8, 2022 at 03:35:53 PM EDT, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
“ … there’s too many people on the satellites … “
Wow … what a wonderful “problem” to have to address. “Too many” are using the “easy" satellites.
Categories of users that has been repeatedly mentioned that are causing chaos and mayhem are grid chasers … rovers … hams making contacts for various prestigious awards.
How about changing the Awards’ rules for rovers and grid chasers - to eliminate “prime time” contacts in their logs? No Saturday and Sunday contacts allowed for pure roving and grid chasing for awards.
This will not alter the accomplishments of those who have already received and earned their awards in the slightest.
But if theirs is a category that is frustrating those new to this aspect of the hobby, and we still want to promote getting involved with the “easy birds,” well …
Make it easy for new folks to access. Make it only slightly more effort to graduate to working towards awards. Those award/certificate seekers should welcome the “challenge” of such “time restrictions” remembering that they, too, all began with working an “easy” bird - and that THOSE contacts got them hooked on satellites.
There. Chaos and mayhem dramatically reduced. Long live the “easy” FM satellites!
Clint Bradford K6LCS
-----------------------------------------------------------
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What is the primary reason we are all working for the good of AMSAT?
"To build satellites, and to disseminate information about them to the planet.”
We’re not a “contest club.” That’s icing on the cake for those interested.
We need to welcome those new to this aspect of the hobby. Give ‘em prime time.
Working only five days a week - during less-trafficked passes - would be a blast for award-seekers.
Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Let's see.... Make SATs "off-limits" for the folks who use them the most.
You assume that the rovers have nothing better to do on weekdays than rove! Weekends are the times working people can get out, and the times working people can chase them. The problem is neither with rovers or award-seekers. The problem is with people who think they have to say hello to their buddies over and over, every pass, every day. How many times do you have to work FM18 or DM43? That's the traffic that's causing the problem. If the regulars would start listening for new calls and new locations, rather than working each other over and over, that would go a long way toward solving the problems. -- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd ----------------------------------------------- "Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Mon, Aug 8, 2022 at 2:50 PM Clint Bradford via AMSAT-BB < amsat-bb@amsat.org> wrote:
What is the primary reason we are all working for the good of AMSAT?
"To build satellites, and to disseminate information about them to the planet.”
We’re not a “contest club.” That’s icing on the cake for those interested.
We need to welcome those new to this aspect of the hobby. Give ‘em prime time.
Working only five days a week - during less-trafficked passes - would be a blast for award-seekers.
Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Let's see.... Make SATs "off-limits" for the folks who use them the most.
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Thank you - great points, better illustrating and defining the “audience” we need to educate.
Clint K6LCS
MARK>> … The problem is neither with rovers or award-seekers. The problem is with people who think they have to say hello to their buddies over and over, every pass, every day. How many times do you have to work FM18 or DM43? That's the traffic that's causing the problem. If the regulars would start listening for new calls and new locations, rather than working each other over and over, that would go a long way toward solving the problems.
My comment still stands. Making SATs "off-limits" for "certain users"for "certain reasons" makes no sense and couldn't be enforced. Besides,those users are just as much AMSAT Members as everyone else and have been the biggest supporters for many years. My 2 cents. de Bob K8BL
On Monday, August 8, 2022 at 03:50:20 PM EDT, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
What is the primary reason we are all working for the good of AMSAT? "To build satellites, and to disseminate information about them to the planet.” We’re not a “contest club.” That’s icing on the cake for those interested. We need to welcome those new to this aspect of the hobby. Give ‘em prime time. Working only five days a week - during less-trafficked passes - would be a blast for award-seekers. Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote: Let's see.... Make SATs "off-limits" for the folks who usethem the most.
-----------------------------------------------------------
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Some said
"I wish we had more linear transponders"
There are linear transponders that might have 1 or 2 people on them on a given NA pass. They are DEAD QUIET ... well, not that bad, but there is lots of room on them.
I have great SSB QSO's on RS44 ... long passes as well.
I wish more people used Linear Transponders is the real problem.
Just guessing, but I am pretty sure there are more active Linear birds than FM birds.
If you want on them bad enough, you'll figure out a way to make it happen. At, there are lots of people who will help you do it as well.
73
Mike va3mw
Not suggesting the sats should be "off limits." I'm suggesting that users should be courteous and welcoming to others, especially newcomers. That means not hogging the bird. -- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd ----------------------------------------------- "Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Mon, Aug 8, 2022 at 5:19 PM Bob Liddy (K8BL) k8bl@ameritech.net wrote:
My comment still stands. Making SATs "off-limits" for "certain users" for "certain reasons" makes no sense and couldn't be enforced. Besides, those users are just as much AMSAT Members as everyone else and have been the biggest supporters for many years. My 2 cents.
de Bob K8BL
On Monday, August 8, 2022 at 03:50:20 PM EDT, Clint Bradford via AMSAT-BB < amsat-bb@amsat.org> wrote:
What is the primary reason we are all working for the good of AMSAT?
"To build satellites, and to disseminate information about them to the planet.”
We’re not a “contest club.” That’s icing on the cake for those interested.
We need to welcome those new to this aspect of the hobby. Give ‘em prime time.
Working only five days a week - during less-trafficked passes - would be a blast for award-seekers.
Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Let's see.... Make SATs "off-limits" for the folks who use them the most.
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Mark, I totally agree. Sharing is the main issue that isn't happening enoughon "the Easy-SATs". The experienced Rovers are well aware of NOThogging a pass and they try to avoid doing that. But, they can't helpwhen a pileup ensues when they are at a rare location. And, there aremany Chasers that only have FM capability and they need to beaccommodated, as well. It's just the nature of having a single-channel resource that can be accessedfrom much of NA and possibly thousands of Hams at the same time. Onlyone signal can get in and be readable at any moment as we know. That ispretty much the formula for chaos and mayhem. I don't claim to know what the solution is, but trying to prevent certainusers from having access to the SATs they support is not it. GL/73, Bob K8BL
On Monday, August 8, 2022 at 06:52:22 PM EDT, Mark Johns, K0JM k0jm.mark@gmail.com wrote:
Not suggesting the sats should be "off limits." I'm suggesting that users should be courteous and welcoming to others, especially newcomers. That means not hogging the bird.-- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd -----------------------------------------------"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Mon, Aug 8, 2022 at 5:19 PM Bob Liddy (K8BL) k8bl@ameritech.net wrote:
My comment still stands. Making SATs "off-limits" for "certain users"for "certain reasons" makes no sense and couldn't be enforced. Besides,those users are just as much AMSAT Members as everyone else and have been the biggest supporters for many years. My 2 cents. de Bob K8BL
On Monday, August 8, 2022 at 03:50:20 PM EDT, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
What is the primary reason we are all working for the good of AMSAT? "To build satellites, and to disseminate information about them to the planet.” We’re not a “contest club.” That’s icing on the cake for those interested. We need to welcome those new to this aspect of the hobby. Give ‘em prime time. Working only five days a week - during less-trafficked passes - would be a blast for award-seekers. Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote: Let's see.... Make SATs "off-limits" for the folks who usethem the most.
-----------------------------------------------------------
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So why not channelize the next gen of FM sats so there’s more than one channel available per pass. That would spread the users and reduce the congestion. And while we’re at it, have a dedicated rover channel where only rovers throw out callsign and grid and all others are responders, not initiators of QSOs. Ray KN2K
Sent from the all new AOL app for iOS
On Monday, August 8, 2022, 10:54 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Mark, I totally agree. Sharing is the main issue that isn't happening enoughon "the Easy-SATs". The experienced Rovers are well aware of NOThogging a pass and they try to avoid doing that. But, they can't helpwhen a pileup ensues when they are at a rare location. And, there aremany Chasers that only have FM capability and they need to beaccommodated, as well. It's just the nature of having a single-channel resource that can be accessedfrom much of NA and possibly thousands of Hams at the same time. Onlyone signal can get in and be readable at any moment as we know. That ispretty much the formula for chaos and mayhem. I don't claim to know what the solution is, but trying to prevent certainusers from having access to the SATs they support is not it. GL/73, Bob K8BL
On Monday, August 8, 2022 at 06:52:22 PM EDT, Mark Johns, K0JM k0jm.mark@gmail.com wrote:
Not suggesting the sats should be "off limits." I'm suggesting that users should be courteous and welcoming to others, especially newcomers. That means not hogging the bird.-- Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd -----------------------------------------------"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Mon, Aug 8, 2022 at 5:19 PM Bob Liddy (K8BL) k8bl@ameritech.net wrote:
My comment still stands. Making SATs "off-limits" for "certain users"for "certain reasons" makes no sense and couldn't be enforced. Besides,those users are just as much AMSAT Members as everyone else and have been the biggest supporters for many years. My 2 cents. de Bob K8BL
On Monday, August 8, 2022 at 03:50:20 PM EDT, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
What is the primary reason we are all working for the good of AMSAT? "To build satellites, and to disseminate information about them to the planet.” We’re not a “contest club.” That’s icing on the cake for those interested. We need to welcome those new to this aspect of the hobby. Give ‘em prime time. Working only five days a week - during less-trafficked passes - would be a blast for award-seekers. Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote: Let's see.... Make SATs "off-limits" for the folks who usethem the most.
-----------------------------------------------------------
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FM Satellites consume much more energy than a linear satellite.
FM is 5khz wide at the very most. How many SSB transmissions can you fit in one 5khz slot? Two, easily without each operator stepping on each other.
Instead of transmitting 20 watts ERP on FM to have a near noise free uplink/downlink, a few watts SSB, CW, SSTV etc would make better use of a satellite and it's resources.
If you were to channelize one or two birds with 3 channels each, the life span of those birds might be half that of the rest of the fleet that is always zooming over our heads. It would be "nice" for a while but a waste of resources. I suspect that we would still have those that would monopolize the birds....but you have that anywhere on ham radio too.
I'm new to this satellite operating...only a little over a week into this. I tried many years ago to listen for ISS but was unsuccessful and didn't have the time or resources to track ISS and everything else in space. I didn't realize it was so easy to hit a satellite with an HT and a portable directional antenna, but there is more up there ....just wish the gear was not cost prohibitive in some cases...but baby steps!
If I can't always make a contact, I just copy down the call signs that I hear and their grid squares. That is a thrill all on its own when you look to see where everyone is located.
My daughter's are fascinated that one can talk to the hams on ISS. What was icing on the cake for them was one night ISS passed over head...it was a week ago at night. I had my HT tuned in and was listening. I even tried to make a contact but 10 watts, a rubber duck antenna and a busy night as ISS flew over...I don't think anyone heard us, but my daughter's were fascinated to see it zoom by over head and hear them on the radio at the same time.
That is what part of the hobby is all about.
Bob Carter
MidAtlantic-Engineering-Service L.L.C.
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
maes-llc.com kc4qlp.com On August 8, 2022 11:39:11 PM crohtun--- via AMSAT-BB amsat-bb@amsat.org wrote:
So why not channelize the next gen of FM sats so there’s more than one channel available per pass. That would spread the users and reduce the congestion. And while we’re at it, have a dedicated rover channel where only rovers throw out callsign and grid and all others are responders, not initiators of QSOs.
Ray KN2K
Sent from the all new AOL app for iOS
On Monday, August 8, 2022, 10:54 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Mark,
I totally agree. Sharing is the main issue that isn't happening enough on "the Easy-SATs". The experienced Rovers are well aware of NOT hogging a pass and they try to avoid doing that. But, they can't help when a pileup ensues when they are at a rare location. And, there are many Chasers that only have FM capability and they need to be accommodated, as well.
It's just the nature of having a single-channel resource that can be accessed from much of NA and possibly thousands of Hams at the same time. Only one signal can get in and be readable at any moment as we know. That is pretty much the formula for chaos and mayhem.
I don't claim to know what the solution is, but trying to prevent certain users from having access to the SATs they support is not it.
GL/73, Bob K8BL
On Monday, August 8, 2022 at 06:52:22 PM EDT, Mark Johns, K0JM k0jm.mark@gmail.com wrote:
Not suggesting the sats should be "off limits." I'm suggesting that users should be courteous and welcoming to others, especially newcomers. That means not hogging the bird. --
Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd
"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain
On Mon, Aug 8, 2022 at 5:19 PM Bob Liddy (K8BL) k8bl@ameritech.net wrote:
My comment still stands. Making SATs "off-limits" for "certain users" for "certain reasons" makes no sense and couldn't be enforced. Besides, those users are just as much AMSAT Members as everyone else and have been the biggest supporters for many years. My 2 cents.
de Bob K8BL
On Monday, August 8, 2022 at 03:50:20 PM EDT, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
What is the primary reason we are all working for the good of AMSAT?
"To build satellites, and to disseminate information about them to the planet.”
We’re not a “contest club.” That’s icing on the cake for those interested.
We need to welcome those new to this aspect of the hobby. Give ‘em prime time.
Working only five days a week - during less-trafficked passes - would be a blast for award-seekers.
Clint K6LCS
On Aug 8, 2022, at 12:40 PM, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Let's see.... Make SATs "off-limits" for the folks who use them the most.
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As a relatively new Amsat Op I just wanted to share quickly my experience. I got my Technician License in early May of this year and just some weeks later I learned about Amsat and was hooked. I got a Arrow antenna and use 2 Yaesu HT's which I already had. So, how did it go? Well, it went surprisingly well. My first satellite was SO-50 and I got my first contact at the first try. Was it difficult? Not really. Since then I worked several sats at several times and days. There only was one time when it went a little bit hectic and that was a pass with AO-91. It was a sunny Saturday afternoon.....and half of North America and South America tried to work that pass. But I still managed to make 4 contacts on AO-91...... Just today, I worked the ISS at the 1608z pass and I was surprised how quiet it actually was. There were stations calling each other but it was very orderly. My experience in general on the satellites so far is very positive. This also extends to the Amsat community. Would I like to work linear satellites? Yes, I sure would. Can I afford it right now? No. So, here we are.
Just the $0.02 from somebody that just recently entered in to the Amsat World.
Peter KC3UEP
Sent with Proton Mail secure email.
------- Original Message ------- On Monday, August 8th, 2022 at 15:35, Clint Bradford via AMSAT-BB amsat-bb@amsat.org wrote:
“ … there’s too many people on the satellites … “
Wow … what a wonderful “problem” to have to address. “Too many” are using the “easy" satellites.
Categories of users that has been repeatedly mentioned that are causing chaos and mayhem are grid chasers … rovers … hams making contacts for various prestigious awards.
How about changing the Awards’ rules for rovers and grid chasers - to eliminate “prime time” contacts in their logs? No Saturday and Sunday contacts allowed for pure roving and grid chasing for awards.
This will not alter the accomplishments of those who have already received and earned their awards in the slightest.
But if theirs is a category that is frustrating those new to this aspect of the hobby, and we still want to promote getting involved with the “easy birds,” well …
Make it easy for new folks to access. Make it only slightly more effort to graduate to working towards awards. Those award/certificate seekers should welcome the “challenge” of such “time restrictions” remembering that they, too, all began with working an “easy” bird - and that THOSE contacts got them hooked on satellites.
There. Chaos and mayhem dramatically reduced. Long live the “easy” FM satellites!
Clint Bradford K6LCS
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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Peter, Welcome Aboard!!! You did GREAT!!! 73, Bob K8BL
On Monday, August 8, 2022 at 09:07:14 PM EDT, Peter via AMSAT-BB amsat-bb@amsat.org wrote:
As a relatively new Amsat Op I just wanted to share quickly my experience. I got my Technician License in early May of this year and just some weeks later I learned about Amsat and was hooked. I got a Arrow antenna and use 2 Yaesu HT's which I already had. So, how did it go? Well, it went surprisingly well. My first satellite was SO-50 and I got my first contact at the first try. Was it difficult? Not really. Since then I worked several sats at several times and days. There only was one time when it went a little bit hectic and that was a pass with AO-91. It was a sunny Saturday afternoon.....and half of North America and South America tried to work that pass. But I still managed to make 4 contacts on AO-91...... Just today, I worked the ISS at the 1608z pass and I was surprised how quiet it actually was. There were stations calling each other but it was very orderly. My experience in general on the satellites so far is very positive. This also extends to the Amsat community. Would I like to work linear satellites? Yes, I sure would. Can I afford it right now? No. So, here we are.
Just the $0.02 from somebody that just recently entered in to the Amsat World.
Peter KC3UEP
Sent with Proton Mail secure email.
Thank you, good Sir. :-)
Peter KC3UEP
Sent with [Proton Mail](https://proton.me/) secure email.
------- Original Message ------- On Monday, August 8th, 2022 at 22:17, Bob Liddy (K8BL) k8bl@ameritech.net wrote:
Peter,
Welcome Aboard!!! You did GREAT!!!
73, Bob K8BL
On Monday, August 8, 2022 at 09:07:14 PM EDT, Peter via AMSAT-BB amsat-bb@amsat.org wrote:
As a relatively new Amsat Op I just wanted to share quickly my experience. I got my Technician License in early May of this year and just some weeks later I learned about Amsat and was hooked. I got a Arrow antenna and use 2 Yaesu HT's which I already had. So, how did it go? Well, it went surprisingly well. My first satellite was SO-50 and I got my first contact at the first try. Was it difficult? Not really. Since then I worked several sats at several times and days. There only was one time when it went a little bit hectic and that was a pass with AO-91. It was a sunny Saturday afternoon.....and half of North America and South America tried to work that pass. But I still managed to make 4 contacts on AO-91...... Just today, I worked the ISS at the 1608z pass and I was surprised how quiet it actually was. There were stations calling each other but it was very orderly. My experience in general on the satellites so far is very positive. This also extends to the Amsat community. Would I like to work linear satellites? Yes, I sure would. Can I afford it right now? No. So, here we are.
Just the $0.02 from somebody that just recently entered in to the Amsat World.
Peter KC3UEP
Sent with Proton Mail secure email.
Hello Ashhar,
I am afraid renting a transponder is not the solution.
QO-100 has dedicated hardware: the linear transponder needs an AGC and the input in a ham band. Also the output at 10 GHz is not really in the commercial band but close by. Therefore the PAs for QO-100 could be reused.
Not so much the antennas. The aim was not to have a spot beam as the commercial transponders normally use. Therefore dedicated antennas for up- and downlink had to be developed and build in order to cover the whole visible part of the Earth.
Unfortunately it does not cover North America nor Japan. Many of us using QO-100 are missing contacts via QO-100 with our friends there.
Kind regards
Matthias
www.dd1us.dehttp://www.dd1us.de
Von: Ashhar Farhan farhanbox@gmail.com Gesendet: Montag, 8. August 2022 20:38 An: Jean Marc Momple jean.marc.momple@gmail.com Cc: KC4QLP kc4qlp@midatlanticengineeringservice.com; AMSAT BB amsat-bb@amsat.org Betreff: [AMSAT-BB] Re: Fixing the FM Stompfest
What does it cost to hire a fraction of a transponder? I assume that you can buy/lease fractional bandwidth on a commercial bird. The VSAT industry runs that way, isn't it?
On Mon, Aug 8, 2022, 9:13 PM Jean Marc Momple <jean.marc.momple@gmail.commailto:jean.marc.momple@gmail.com> wrote: Bob,
I can only comment on the second paragraph of your mail “ I've read about the one ham satellite over Africa. I wonder if there plans for one over North America)”:
We did exchange somehow about a GEO over Americas in the past on this forum. From same, my understanding is that a GEO initiative such as the AMSAT-DL - QARS - Es’Hail 2 collaboration for QO-100 is not feasible in your part of the world and is due to the perceive fact that all American GEO projects as are purely business oriented and will not entertain a HAM transponder on their satellite. Like you I am from a telco background and have dealt with the satellite industry for years, I somehow disagree with that “conclusion” and the only way to make it happen is to get out of our “zone of comfort” and be more proactive, as just a phone call to the right person may change things drastically.
To encourage same I can only quote the President of AMSAT Robert Bankston, KE4AL in the last AMSAT NEWS SERVICE ANS-219. "No one has knocked on our door offering a free ride, nor have we succeeded in our numerous cold call attempts. We need someone on the inside or even a friend of a friend, who can get us in the room. If you know someone and an opportunity, I could use your help. Until next time, thank you for supporting AMSAT. Onward & Upward!”, I guess his message is quite clear, to make it happen we need “a friend of a friend”, the HAM community is well connect and just the right connection may change the world, this is how business works generally and that great projects are achieved.
I just hope for Americas that the President message will be understood and acted upon so that you guys may enjoy a bird such as QO-100 as it is really superbe and change our HAM life for the best this part of the world (thanks to Peter and his team at AMSAT -DL).
My one cent input.
Jean Marc (3B8DU)
On Aug 8, 2022, at 4:40 PM, KC4QLP <kc4qlp@midatlanticengineeringservice.commailto:kc4qlp@midatlanticengineeringservice.com> wrote:
I'm just getting into satellite operations as a hobby. I've used the commercial satellites all through my broadcast career, but as a hobby, this is way more fun.
I've read about the one ham satellite over Africa. I wonder if there plans for one over North America.
I have to say using a 10 watt HT (no dual receive while transmitting) into a dual band beam (3 elements for 144mhz and 5 elements for 440mhz) all while portable is a challenge. I have been able to sort of make some kind of contact on two other birds, and ISS Sunday afternoon when it was as crowded. Hearing the quick key ups, hetrodines and even the occasional idiot that is heard whistling reminds me of CB radio in some ways.
The gentleman's ways and patient operators are becoming a long lost art.
For a newbie here, what portable radio do you all recommend? For permanent setups, what is recommended?
I don't see myself standing on my deck in the middle of a central NY winter and snow storm while trying to catch the satellites. :-D
Bob Carter
FCC Licensee: KC4QLP - WQJK414 - WRFT769 - RR00096040
kc4qlp.comhttp://kc4qlp.com/ maes-llc.comhttp://maes-llc.com/
On August 7, 2022 4:46:19 PM "Mark L. Hammond" <marklhammond@gmail.commailto:marklhammond@gmail.com> wrote: AO-51 did it (two simultaneous FM xmitters)—but hardly a cubesat!!
Mark N8MH
On Sun, Aug 7, 2022 at 4:29 PM David G0MRF via AMSAT-BB <amsat-bb@amsat.orgmailto:amsat-bb@amsat.org> wrote: Hello Ray
Nice idea. channelized receive is fairly easy without excess power consumption. - single downconverter with multiple IF's or SDR equivalent. The main issue is on transmit where you need to share the limited 'DC power' between multiple transmitters. Probably possible to do 2 x transmitters on a 2U and 3 x transmitters on a 3U. Some fancy final amplifier running a high efficiency mode like class D or E shouldn't hurt the power budget too much
73 David
Behavior mod on the part of veteran FM ops doesn’t seem to be in the cards. So what about this? Suppose the next gen FM birds were channelized? That would divide the number of ops per pass. Thoughts?
Ray KN2K
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participants (17)
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Ashhar Farhan
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Bob Liddy (K8BL)
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Bruce Perens
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Clint Bradford
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crohtun@aol.com
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David G0MRF
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Eduardo PY2RN
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Gary
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I2OIM
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Jean Marc Momple
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KC4QLP
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Mark Johns, K0JM
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Matthias Bopp
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Michael Walker
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Peter
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Thomas Talley
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Zach Metzinger