[amsat-bb] D-Star ONE PHOENIX
Sean Waite
waisean at gmail.com
Fri Feb 2 16:11:15 UTC 2018
That'll make it rough on my ID-51A+, minimum 5kHz steps. Still worth a
shot. I was looking an at IC-9100 for a while, but man is that thing
expensive.
73,
Sean WA1TE
On Fri, Feb 2, 2018 at 11:02 AM Paul Stoetzer <n8hm at arrl.net> wrote:
> 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.
>
> 73,
>
> Paul, N8HM
>
> 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
> > stations.
> >
> > 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:
> >> http://www.amsatuk.me.uk/iaru/finished_detail.php?serialnum=547
> >>
> >> However, without any communication from the satellite owners to the
> >> amateur community, all we can do is speculate and listen to see what's
> >> heard.
> >>
> >> 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
> >>
> >> 73,
> >>
> >> 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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