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
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