[amsat-bb] D-Star ONE PHOENIX
n8hm at arrl.net
Fri Feb 2 16:02:03 UTC 2018
Tests on AO-27 showed that D-STAR fails if the frequency is more than
1.5 kHz off, that means there are times when you will not be able to
access or hear the satellite using 5 kHz steps. The IC-9100 can be
fine tuned and computer controlled, I'm not sure about any other
D-STAR radios, maybe the IC-7100 can be too.
On Fri, Feb 2, 2018 at 10:57 AM, Sean Waite <waisean at gmail.com> wrote:
> Well that certainly makes it a little easier. Are the doppler issues any
> different than the normal ones we face on a 70cm satellite?
> The TLE on that Chinese sat suggests it'll get passes over the US, so that's
> good news if it's actually another FM bird. Having a handful of new
> satellites up there all at once will hopefully spread out the crowds so that
> we don't have people blasting them with 50W trying to beat out the other
> Sean WA1TE
> On Fri, Feb 2, 2018 at 10:43 AM Paul Stoetzer <n8hm at arrl.net> wrote:
>> It's a half-duplex parrot repeater, so there's no need to hear
>> yourself. The trick is Doppler compensation.
>> I find it somewhat odd that they've managed to receive signals, but
>> everyone else in Europe is reporting silence. We shall see.
>> Potential Keps from Space Track are:
>> 1 43184U 18014E 18033.08269475 -.00000058 00000-0 00000+0 0 9993
>> 2 43184 97.7305 303.2289 0012801 243.8166 116.1553 14.95704337 119
>> In other satellite news, one or maybe two Chinese amateur satellites
>> was launched earlier this morning. FMN-1 carries an FM transponder
>> with an uplink of 145.945 MHz and a downlink of 435.350 MHz. Telemetry
>> downlink is 9k6 BPSK on 435.350 MHz. It's possible that one of the
>> other CubeSats on the mission, Shaonian XIng, is one of the Juvenile
>> series satellites coordinated here:
>> However, without any communication from the satellite owners to the
>> amateur community, all we can do is speculate and listen to see what's
>> One object has been cataloged by Space Track for that launch so far:
>> 1 43192U 18015A 18033.45158700 -.00000069 00000-0 00000+0 0 9994
>> 2 43192 97.3413 165.3763 0014311 275.0882 167.9240 15.22360621 19
>> Paul, N8HM
>> On Fri, Feb 2, 2018 at 10:37 AM, Sean Waite <waisean at gmail.com> wrote:
>> > Looks like the group behind the burned up D-Star ONE project somehow
>> > managed to get a second satellite built and launched in a little over a
>> > month. They're getting data from it, and are awaiting the TLE. Pretty
>> > crazy
>> > how fast they got that up there.
>> > http://www.d-star.one/
>> > I don't have a second D-Star radio, but maybe it'll be workable without
>> > being able to hear myself.
>> > 73,
>> > Sean WA1TE
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