CAMSAT launch scheduled between Sep 7th-9th
Earlier this morning, the ARRL posted this update on the launch of nine CAMSAT amateur satellites, now scheduled for sometime between September 7th and 9th :
http://www.arrl.org/news/chinese-amateur-radio-satellites-set-to-launch-in-e...
There's also a nice frequency chart for the nine amateur satellites on this launch:
http://www.arrl.org/files/media/News/XW-2CAS-3%20Sats.pdf
September should be a fun month!
73,
Paul, N8HM
Thanks for the links, Paul.
Some of the satellites have strange frequency allocations.
73, Edson PY2SDR
--- - We humans have the capability to do amazing things if we work together. - Nós seres humanos temos a capacidade de fazer coisas incríveis se trabalharmos juntos.
On Wed, Aug 5, 2015 at 11:19 AM, Paul Stoetzer n8hm@arrl.net wrote:
Earlier this morning, the ARRL posted this update on the launch of nine CAMSAT amateur satellites, now scheduled for sometime between September 7th and 9th :
http://www.arrl.org/news/chinese-amateur-radio-satellites-set-to-launch-in-e...
There's also a nice frequency chart for the nine amateur satellites on this launch:
http://www.arrl.org/files/media/News/XW-2CAS-3%20Sats.pdf
September should be a fun month!
73,
Paul, N8HM _______________________________________________ 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
Yes, the downlinks of XW-2A, XW-2B, and XW-2C are not within either the 144.3-144.5 or the 145.8-146.0 OSCAR subbands, which is unfortunate.
73,
Paul, N8HM
On Wed, Aug 5, 2015 at 10:42 AM, Edson W. R. Pereira ewpereira@gmail.com wrote:
Thanks for the links, Paul.
Some of the satellites have strange frequency allocations.
73, Edson PY2SDR
- We humans have the capability to do amazing things if we work together.
- Nós seres humanos temos a capacidade de fazer coisas incríveis se
trabalharmos juntos.
On Wed, Aug 5, 2015 at 11:19 AM, Paul Stoetzer n8hm@arrl.net wrote:
Earlier this morning, the ARRL posted this update on the launch of nine CAMSAT amateur satellites, now scheduled for sometime between September 7th and 9th :
http://www.arrl.org/news/chinese-amateur-radio-satellites-set-to-launch-in-e...
There's also a nice frequency chart for the nine amateur satellites on this launch:
http://www.arrl.org/files/media/News/XW-2CAS-3%20Sats.pdf
September should be a fun month!
73,
Paul, N8HM _______________________________________________ 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
Interesting.
Only a few days ago there was a comment that a satellite launched 15 years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than coordinating them.
I wonder if the head of licensing in Bejing is the same chap who thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
-----Original Message----- From: Paul Stoetzer n8hm@arrl.net To: amsat-bb amsat-bb@amsat.org Sent: Wed, 5 Aug 2015 15:19 Subject: [amsat-bb] CAMSAT launch scheduled between Sep 7th-9th
Earlier this morning, the ARRL posted this update on the launch of nine CAMSAT amateur satellites, now scheduled for sometime between September 7th and 9th :
http://www.arrl.org/news/chinese-amateur-radio-satellites-set-to-launch-in-e...
There's also a nice frequency chart for the nine amateur satellites on this launch:
http://www.arrl.org/files/media/News/XW-2CAS-3%20Sats.pdf
September should be a fun month!
73,
Paul, N8HM _______________________________________________ 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
David,
I noticed the frequency selections for all of those satellites. It is nice that we may have 6 transponders that don't have overlapping frequencies, which could make for some interesting times ("Which of the 6 will you be on?" - for example). Seeing how some of those downlinks are at and below 145.800 MHz could cause many new issues with terrestrial and (for 145.800 MHz) other space operations. Also seeing APRS at 144.390 MHz (North American APRS frequency) and an FM uplink at 144.350 MHz on LilacSat-2 (CAS-3H) won't make some any happier.
CAMSAT filed for IARU frequency coordination in 2012:
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=264
but it doesn't appear to have gone anywhere past the filing step. I did not see frequencies listed on that web page, nor did I see the CAMSAT satellites anywhere else on that site. I can only guess the Chinese licensing authorities are making full use of the 144-146 MHz range that is permitted under the international (ITU) radio regulations for amateur satellite operation, regardless of the voluntary bandplans observed around the world.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Aug 5, 2015 at 10:00 AM, David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Interesting.
Only a few days ago there was a comment that a satellite launched 15 years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than coordinating them.
I wonder if the head of licensing in Bejing is the same chap who thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
The CAMSAT filing you referenced is for the CAS-2 series not yet scheduled for a launch, not the CAS-3 series on this launch.
LilacSat-2 has other frequencies coordinated:
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=395
The CAS-3 series is pending coordination here:
On Wed, Aug 5, 2015 at 1:27 PM, Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb@wd9ewk.net wrote:
David,
I noticed the frequency selections for all of those satellites. It is nice that we may have 6 transponders that don't have overlapping frequencies, which could make for some interesting times ("Which of the 6 will you be on?" - for example). Seeing how some of those downlinks are at and below 145.800 MHz could cause many new issues with terrestrial and (for 145.800 MHz) other space operations. Also seeing APRS at 144.390 MHz (North American APRS frequency) and an FM uplink at 144.350 MHz on LilacSat-2 (CAS-3H) won't make some any happier.
CAMSAT filed for IARU frequency coordination in 2012:
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=264
but it doesn't appear to have gone anywhere past the filing step. I did not see frequencies listed on that web page, nor did I see the CAMSAT satellites anywhere else on that site. I can only guess the Chinese licensing authorities are making full use of the 144-146 MHz range that is permitted under the international (ITU) radio regulations for amateur satellite operation, regardless of the voluntary bandplans observed around the world.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Aug 5, 2015 at 10:00 AM, David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Interesting.
Only a few days ago there was a comment that a satellite launched 15 years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than coordinating them.
I wonder if the head of licensing in Bejing is the same chap who thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
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
Hit send before I could attach the last link, for the CAS-3 coordination request.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=458
73,
Paul, N8HM
On Wed, Aug 5, 2015 at 1:32 PM, Paul Stoetzer n8hm@arrl.net wrote:
The CAMSAT filing you referenced is for the CAS-2 series not yet scheduled for a launch, not the CAS-3 series on this launch.
LilacSat-2 has other frequencies coordinated:
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=395
The CAS-3 series is pending coordination here:
On Wed, Aug 5, 2015 at 1:27 PM, Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb@wd9ewk.net wrote:
David,
I noticed the frequency selections for all of those satellites. It is nice that we may have 6 transponders that don't have overlapping frequencies, which could make for some interesting times ("Which of the 6 will you be on?" - for example). Seeing how some of those downlinks are at and below 145.800 MHz could cause many new issues with terrestrial and (for 145.800 MHz) other space operations. Also seeing APRS at 144.390 MHz (North American APRS frequency) and an FM uplink at 144.350 MHz on LilacSat-2 (CAS-3H) won't make some any happier.
CAMSAT filed for IARU frequency coordination in 2012:
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=264
but it doesn't appear to have gone anywhere past the filing step. I did not see frequencies listed on that web page, nor did I see the CAMSAT satellites anywhere else on that site. I can only guess the Chinese licensing authorities are making full use of the 144-146 MHz range that is permitted under the international (ITU) radio regulations for amateur satellite operation, regardless of the voluntary bandplans observed around the world.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Aug 5, 2015 at 10:00 AM, David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Interesting.
Only a few days ago there was a comment that a satellite launched 15 years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than coordinating them.
I wonder if the head of licensing in Bejing is the same chap who thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
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
Amateur satellites operating outside the allocated sub-bands is a very unfortunate and bad precedent. Radio Amateurs from different countries and different IARU regions spend years negotiating bandplans so that we can all operate in harmony without causing interference to other amateurs.
The 2m band is indeed crowded, but we do have practically desert bands above 70cm that so badly need activity. Not only the bands are available, but we *need* to use them. Otherwise we will lose them.
73, Edson PY2SDR
--- - We humans have the capability to do amazing things if we work together. - Nós seres humanos temos a capacidade de fazer coisas incríveis se trabalharmos juntos.
On Wed, Aug 5, 2015 at 2:32 PM, Paul Stoetzer n8hm@arrl.net wrote:
Hit send before I could attach the last link, for the CAS-3 coordination request.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=458
73,
Paul, N8HM
On Wed, Aug 5, 2015 at 1:32 PM, Paul Stoetzer n8hm@arrl.net wrote:
The CAMSAT filing you referenced is for the CAS-2 series not yet scheduled for a launch, not the CAS-3 series on this launch.
LilacSat-2 has other frequencies coordinated:
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=395
The CAS-3 series is pending coordination here:
On Wed, Aug 5, 2015 at 1:27 PM, Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb@wd9ewk.net wrote:
David,
I noticed the frequency selections for all of those satellites. It is
nice
that we may have 6 transponders that don't have overlapping frequencies, which could make for some interesting times ("Which of the 6 will you be on?" - for example). Seeing how some of those downlinks are at and below 145.800 MHz could cause many new issues with terrestrial and (for 145.800 MHz) other space operations. Also seeing APRS at 144.390 MHz (North American APRS frequency) and an FM uplink at 144.350 MHz on LilacSat-2 (CAS-3H) won't make some any happier.
CAMSAT filed for IARU frequency coordination in 2012:
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=264
but it doesn't appear to have gone anywhere past the filing step. I did
not
see frequencies listed on that web page, nor did I see the CAMSAT
satellites
anywhere else on that site. I can only guess the Chinese licensing authorities are making full use of the 144-146 MHz range that is
permitted
under the international (ITU) radio regulations for amateur satellite operation, regardless of the voluntary bandplans observed around the world.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Aug 5, 2015 at 10:00 AM, David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Interesting.
Only a few days ago there was a comment that a satellite launched 15
years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly
the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than
coordinating them.
I wonder if the head of licensing in Bejing is the same chap who
thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
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
Dear Edson,
I agree with everything you say...it is obvious that we must work much harder on these two issues in the future!
73
Graham G3VZV
-----Original Message----- From: Edson W. R. Pereira Sent: Wednesday, August 05, 2015 9:21 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] CAMSAT Frequency chaos
Amateur satellites operating outside the allocated sub-bands is a very unfortunate and bad precedent. Radio Amateurs from different countries and different IARU regions spend years negotiating bandplans so that we can all operate in harmony without causing interference to other amateurs.
The 2m band is indeed crowded, but we do have practically desert bands above 70cm that so badly need activity. Not only the bands are available, but we *need* to use them. Otherwise we will lose them.
73, Edson PY2SDR
--- - We humans have the capability to do amazing things if we work together. - Nós seres humanos temos a capacidade de fazer coisas incríveis se trabalharmos juntos.
On Wed, Aug 5, 2015 at 2:32 PM, Paul Stoetzer n8hm@arrl.net wrote:
Hit send before I could attach the last link, for the CAS-3 coordination request.
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=458
73,
Paul, N8HM
On Wed, Aug 5, 2015 at 1:32 PM, Paul Stoetzer n8hm@arrl.net wrote:
The CAMSAT filing you referenced is for the CAS-2 series not yet scheduled for a launch, not the CAS-3 series on this launch.
LilacSat-2 has other frequencies coordinated:
http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=395
The CAS-3 series is pending coordination here:
On Wed, Aug 5, 2015 at 1:27 PM, Patrick STODDARD (WD9EWK/VA7EWK) amsat-bb@wd9ewk.net wrote:
David,
I noticed the frequency selections for all of those satellites. It is
nice
that we may have 6 transponders that don't have overlapping frequencies, which could make for some interesting times ("Which of the 6 will you be on?" - for example). Seeing how some of those downlinks are at and below 145.800 MHz could cause many new issues with terrestrial and (for 145.800 MHz) other space operations. Also seeing APRS at 144.390 MHz (North American APRS frequency) and an FM uplink at 144.350 MHz on LilacSat-2 (CAS-3H) won't make some any happier.
CAMSAT filed for IARU frequency coordination in 2012:
http://www.amsatuk.me.uk/iaru/formal_detail.php?serialnum=264
but it doesn't appear to have gone anywhere past the filing step. I did
not
see frequencies listed on that web page, nor did I see the CAMSAT
satellites
anywhere else on that site. I can only guess the Chinese licensing authorities are making full use of the 144-146 MHz range that is
permitted
under the international (ITU) radio regulations for amateur satellite operation, regardless of the voluntary bandplans observed around the world.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK
On Wed, Aug 5, 2015 at 10:00 AM, David G0MRF via AMSAT-BB amsat-bb@amsat.org wrote:
Interesting.
Only a few days ago there was a comment that a satellite launched 15
years ago was transmitting on 144.390 which was being used for weak signal meteor scatter in Europe. That was unintentional and in any case only sent a couple of very short beacons per minute.
Now we see another satellite 'licensed' very recently using exactly
the same frequency and a lot of other satellites transmitting on frequencies allocated to repeaters and other services.
I presume the IARU were 'informed' of these frequencies rather than
coordinating them.
I wonder if the head of licensing in Bejing is the same chap who
thought the Anti satellite missile test, that produced thousands of pieces of space debris, was a good idea.
(rant over)
David
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
_______________________________________________ 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
participants (5)
-
David G0MRF -
Edson W. R. Pereira -
Graham Shirville -
Patrick STODDARD (WD9EWK/VA7EWK) -
Paul Stoetzer