Is ISS Digipeater not always on for use?
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
Bob, the ISS digipeater is 145.825. I was able to digipeat this morning.
Ron NY3J
On 7/22/2015 10:01 AM, Bob KD7YZ wrote:
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
The frequency is 145.825.
It's been reported on for the past couple of days. It is generally always on unless the radio is in use for an ARISS contact, there's an EVA, or an arrival/departure of a cargo or crew vehicle.
As the Soyuz carrying the Expedition 44 crew is scheduled to arrive this evening at 0246Z, it will be off for some time before and after that.
73,
Paul, N8HM
On Wed, Jul 22, 2015 at 10:01 AM, Bob KD7YZ kd7yz@denstarfarm.us wrote:
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
Bob KD7YZ http://www.qrz.com/db/kd7yz AMSAT LM#901 _______________________________________________ Sent via AMSAT-BB@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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Hi Bob,
Two different radios are used on the ISS. The SSTV pictures on 145.800 were sent using the Kenwood rig in the Russian segment. The packet digipeater on 145.825 is an Ericcson HT at lower power and different antenna than the Kenwood rig.
On Saturday when the SSTV signal was still just an unmodulated carrier on 145.800 I was able to digi on 145.825 up/down.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Bob KD7YZ Sent: Wednesday, July 22, 2015 9:01 AM To: AMSAT BB Subject: [amsat-bb] Is ISS Digipeater not always on for use?
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
Bob KD7YZ http://www.qrz.com/db/kd7yz AMSAT LM#901 _______________________________________________ Sent via AMSAT-BB@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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
This is what I understood too, but why do they use the lower power HT for ARISS school contacts? Is it because they have that headset for it that makes it easier to hear questions perhaps? On Jul 22, 2015 10:09 AM, "JoAnne K9JKM" joanne.k9jkm@gmail.com wrote:
Hi Bob,
Two different radios are used on the ISS. The SSTV pictures on 145.800 were sent using the Kenwood rig in the Russian segment. The packet digipeater on 145.825 is an Ericcson HT at lower power and different antenna than the Kenwood rig.
On Saturday when the SSTV signal was still just an unmodulated carrier on 145.800 I was able to digi on 145.825 up/down.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Bob KD7YZ Sent: Wednesday, July 22, 2015 9:01 AM To: AMSAT BB Subject: [amsat-bb] Is ISS Digipeater not always on for use?
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
Bob KD7YZ http://www.qrz.com/db/kd7yz AMSAT LM#901 _______________________________________________ Sent via AMSAT-BB@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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
The Ericsson (M-PA Series) transceivers are on board in the ISS Columbus module which is closer to the common work and living areas. The Kenwood radio is located in the ISS FGB Service Module (Zarya). http://www.ariss.org/contact-the-iss.html explains more.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of John Brier Sent: Wednesday, July 22, 2015 10:42 AM To: JoAnne K9JKM Cc: AMSAT BB Subject: Re: [amsat-bb] Is ISS Digipeater not always on for use?
This is what I understood too, but why do they use the lower power HT for ARISS school contacts? Is it because they have that headset for it that makes it easier to hear questions perhaps? On Jul 22, 2015 10:09 AM, "JoAnne K9JKM" joanne.k9jkm@gmail.com wrote:
Thanks, that helps. I've seen that page but didn't glean that reasoning.
John Brier, KG4AKV On Jul 22, 2015 11:51 AM, "JoAnne Maenpaa" k9jkm@comcast.net wrote:
The Ericsson (M-PA Series) transceivers are on board in the ISS Columbus module which is closer to the common work and living areas. The Kenwood radio is located in the ISS FGB Service Module (Zarya). http://www.ariss.org/contact-the-iss.html explains more.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of John Brier Sent: Wednesday, July 22, 2015 10:42 AM To: JoAnne K9JKM Cc: AMSAT BB Subject: Re: [amsat-bb] Is ISS Digipeater not always on for use?
This is what I understood too, but why do they use the lower power HT for ARISS school contacts? Is it because they have that headset for it that makes it easier to hear questions perhaps? On Jul 22, 2015 10:09 AM, "JoAnne K9JKM" joanne.k9jkm@gmail.com wrote:
Thanks, that helps. I've seen that page but didn't glean that reasoning.
I dug up an older ARISS posting which hopefully adds a bit more to the good explanation by Dan just a minute ago:
---
The "new" radio is actually a Kenwood D710 which is located in the Russian Service module. The Service Module is where the ARISS team performed most of its contacts in the past as it was near the table where all the crew had dinner. Since the first contacts with ARISS in 2000, the ISS has significantly expanded, both in size and in crew size. ARISS has expanded too, with an additional station location in the Columbus module, which is on the other end of ISS (about football field in length). This is where the US, Europe, Japan and Canada conducts most of its experiments and where they spend most of their time. Right now we are using a lower power radio, an Ericsson handheld, in the Columbus module, as it was already on-board ISS (launched in 2000). Our near term plans is to upgrade the Columbus station to a higher power radio (mobile radio class). Keep an eye out for these plans to mature.
Note that we are unable to move radios from the Russian segment (Service Module) to the US segment (where the Columbus module is located) as the power systems are different (28V vs 120 V) and certification for the Kenwood radios was only performed for the Russian segment. At the last ARISS International meeting, the delegates agreed with a plan to make sure all future equipment is interoperable and certified across the ISS. This will cost more money and take more time, but should provide more equipment flexibility for ARISS.
For now, APRS is using the lower power radio in the Columbus module.
I hope this helps explain things.
73, Frank Bauer, KA3HDO ARISS International Chair & AMSAT-NA V.P. for Human Spaceflight Programs
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
Thank you JoAnne and Bob. I really like learning about the ISS through ham radio/ARISS as I can relate to it more since I actually interact with these systems and people on it.
John, KG4AKV On Jul 22, 2015 12:03 PM, "JoAnne Maenpaa" k9jkm@comcast.net wrote:
Thanks, that helps. I've seen that page but didn't glean that reasoning.
I dug up an older ARISS posting which hopefully adds a bit more to the good explanation by Dan just a minute ago:
The "new" radio is actually a Kenwood D710 which is located in the Russian Service module. The Service Module is where the ARISS team performed most of its contacts in the past as it was near the table where all the crew had dinner. Since the first contacts with ARISS in 2000, the ISS has significantly expanded, both in size and in crew size. ARISS has expanded too, with an additional station location in the Columbus module, which is on the other end of ISS (about football field in length). This is where the US, Europe, Japan and Canada conducts most of its experiments and where they spend most of their time. Right now we are using a lower power radio, an Ericsson handheld, in the Columbus module, as it was already on-board ISS (launched in 2000). Our near term plans is to upgrade the Columbus station to a higher power radio (mobile radio class). Keep an eye out for these plans to mature.
Note that we are unable to move radios from the Russian segment (Service Module) to the US segment (where the Columbus module is located) as the power systems are different (28V vs 120 V) and certification for the Kenwood radios was only performed for the Russian segment. At the last ARISS International meeting, the delegates agreed with a plan to make sure all future equipment is interoperable and certified across the ISS. This will cost more money and take more time, but should provide more equipment flexibility for ARISS.
For now, APRS is using the lower power radio in the Columbus module.
I hope this helps explain things.
73, Frank Bauer, KA3HDO ARISS International Chair & AMSAT-NA V.P. for Human Spaceflight Programs
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
For example, I'm pretty sure I had read that the ISS was as long a football field before, but it was a general fact. Now I can see how it can be a factor in accessibility while living and working there, and even in ham radio access. Very cool.
John, KG4AKV On Jul 22, 2015 12:13 PM, "John Brier" johnbrier@gmail.com wrote:
Thank you JoAnne and Bob. I really like learning about the ISS through ham radio/ARISS as I can relate to it more since I actually interact with these systems and people on it.
John, KG4AKV On Jul 22, 2015 12:03 PM, "JoAnne Maenpaa" k9jkm@comcast.net wrote:
Thanks, that helps. I've seen that page but didn't glean that reasoning.
I dug up an older ARISS posting which hopefully adds a bit more to the good explanation by Dan just a minute ago:
The "new" radio is actually a Kenwood D710 which is located in the Russian Service module. The Service Module is where the ARISS team performed most of its contacts in the past as it was near the table where all the crew had dinner. Since the first contacts with ARISS in 2000, the ISS has significantly expanded, both in size and in crew size. ARISS has expanded too, with an additional station location in the Columbus module, which is on the other end of ISS (about football field in length). This is where the US, Europe, Japan and Canada conducts most of its experiments and where they spend most of their time. Right now we are using a lower power radio, an Ericsson handheld, in the Columbus module, as it was already on-board ISS (launched in 2000). Our near term plans is to upgrade the Columbus station to a higher power radio (mobile radio class). Keep an eye out for these plans to mature.
Note that we are unable to move radios from the Russian segment (Service Module) to the US segment (where the Columbus module is located) as the power systems are different (28V vs 120 V) and certification for the Kenwood radios was only performed for the Russian segment. At the last ARISS International meeting, the delegates agreed with a plan to make sure all future equipment is interoperable and certified across the ISS. This will cost more money and take more time, but should provide more equipment flexibility for ARISS.
For now, APRS is using the lower power radio in the Columbus module.
I hope this helps explain things.
73, Frank Bauer, KA3HDO ARISS International Chair & AMSAT-NA V.P. for Human Spaceflight Programs
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
On 22/07/2015, John Brier johnbrier@gmail.com wrote:
This is what I understood too, but why do they use the lower power HT for ARISS school contacts? Is it because they have that headset for it that makes it easier to hear questions perhaps? On Jul 22, 2015 10:09 AM, "JoAnne K9JKM" joanne.k9jkm@gmail.com wrote:
One radio is in the Colombus module and used by European, Japanese, US etc.
The other radio is in the Russian segment.
At the moment the Russian segment is being used for school contacts as there is no astronaut in the European section with a licence.
So two radios, two different locations. There was a high power radio in the Colombus module but it is not working. The handheld is a backup, currently in use.
The two sections are as such independent, with co-operation. There are different voltages in different sections which also makes moving equipment from one to another very difficult. The section used depends on the Nationality of the astronaut. SSTV always seems to be Russian, probably due to equipment in that module. Packet is always European, as far as I know.
On 22-Jul-15 1009, JoAnne K9JKM wrote:
Two different radios are used on the ISS. The SSTV pictures on 145.800 were sent using the Kenwood rig in the Russian segment. The packet digipeater on 145.825 is an Ericcson HT at lower power and different antenna than the Kenwood rig.
tnx JoAnne, Ron, Paul, et al
here's what I have (or had), from my SatPc32 ----------------------- ISS,145800,145990,FM,FM,NOR,0,0,Packet ISS,145800,145200,FM,FM,NOR,0,0,Voice Region 1 ISS,145800,144490,FM,FM,NOR,0,0,Voice Region 2/3 ISS,145800,437800,FM,FM,NOR,0,0,Cross band repeater ----------------------------
the first line I actually got from this web page: http://www.amsatnet.com/iss.html
dunno how I actually followed various links to arrive at that though. Thus I am unable account for the timeliness or validity in today's terms.
So, anyone, please provide a more appropriate set of lines for my iteration of SatPc32, svp
73,
That's old info. Many years ago the ISS used separate uplink and downlink frequencies for packet, but now it's just 145.825 MHz simplex.
73,
Paul, N8HM
On Thursday, July 23, 2015, Bob KD7YZ kd7yz@denstarfarm.us wrote:
On 22-Jul-15 1009, JoAnne K9JKM wrote:
Two different radios are used on the ISS. The SSTV pictures on 145.800
were
sent using the Kenwood rig in the Russian segment. The packet digipeater
on
145.825 is an Ericcson HT at lower power and different antenna than the Kenwood rig.
tnx JoAnne, Ron, Paul, et al
here's what I have (or had), from my SatPc32
ISS,145800,145990,FM,FM,NOR,0,0,Packet ISS,145800,145200,FM,FM,NOR,0,0,Voice Region 1 ISS,145800,144490,FM,FM,NOR,0,0,Voice Region 2/3 ISS,145800,437800,FM,FM,NOR,0,0,Cross band repeater
the first line I actually got from this web page: http://www.amsatnet.com/iss.html
dunno how I actually followed various links to arrive at that though. Thus I am unable account for the timeliness or validity in today's terms.
So, anyone, please provide a more appropriate set of lines for my iteration of SatPc32, svp
73,
Bob KD7YZ http://www.qrz.com/db/kd7yz AMSAT LM#901 _______________________________________________ Sent via AMSAT-BB@amsat.org javascript:;. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
the first line I actually got from this web page: http://www.amsatnet.com/iss.html
This is not an AMSAT page. It is privately owned and operated and includes the word 'amsat'.
The radios on board the ISS are actually in the ARISS program and their official pages are at http://www.ariss.org. Of course AMSAT and ARISS cooperate closely and have many of the same personnel.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
participants (7)
-
Bob KD7YZ -
Daniel Cussen -
JoAnne K9JKM -
JoAnne Maenpaa -
John Brier -
Paul Stoetzer -
Ron Wenig