Has anyone been able to get a PSK signal through PSAT2? I'm trying to get
set up to try SSTV, and I'm first trying to get a PSK signal through. I
only have 5W, but I've been able to get into PSAT (NO-84) and hold its
transponder on both with and without DopplerPSK. I have not had any success
using the same procedure with PSAT2. I was using DopplerPSK and was sure to
change satellites to NO-104. It could just be that the passes are lower and
more power is needed.
I also want to confirm that the frequency is 29.4815 MHz, as there are a
bunch of different frequencies listed at various sources.
> So I just learned today that AO-92 is dead. Does anyone know what happened?
> Chris Pohlad-Thomas
It's not officially dead (as far as I can recall... I think they are never
called "dead" until they re-enter). Also, it seems to turn on now and
again (it was on and being used about a week ago, according to SatNogs
observations and the amsat status page). I've also caught at least one
pass where it was partially on (I caught what appeared to be a beacon, but
with no DUV telemetry - and it was weak and didn't sound right either),
about 2 weeks ago.
The problem seems to be battery life issues, btw.
The digest version (AMSAT-BB Digest, Vol 15, Issue 426) shows no messages on
October 26 or 27:
Date: Sun, 25 Oct 2020 16:55:33 +0000 (UTC)
Subject: Re: [amsat-bb] ISS Cross Band Repet
Date: Wed, 28 Oct 2020 14:27:01 -0400
From: Roy Dean <royldean(a)gmail.com>
Subject: [amsat-bb] AMSAT BB Still Alive?
Just starting out to chase the ISS with it's new cross-band repeater.
I've noticed that
for the last 2 weeks, there has not been any FM activity on the ISS_FM
status page. Is there
somewhere I can find out the schedule of it's operations? And likely
when it will be available?
Joel, W9NXM, EN52
> Is there
> somewhere I can find out the schedule of it's operations? And likely
> when it will be available?
> Thanks much!
> Joel, W9NXM, EN52
There is no schedule. Check here for status:
At the risk of posting something that is already known, I would agree that success with 9600 baud is a matter of both a transmit and receive audio/data bandwidth of 8-12 kHz, which unless that is under SW control in your particular radio, it can’t be addressed with a FW mod. I have successfully moded both Yeasu FT-726/736R (many years ago) and more recently, the Icom 970 by accessing the FM discriminator and modulator directly and bringing those signals via shielded cable to either an added connector on the rear panel or utilizing unused pins on one of the existing rear jacks, which is then attached to an external TNC. In the case of the Yeasu, I also changed the IF filter to wider BW. BTW, that added IF BW in FM mode on the Yeasus when not using 9600 packet was a compromise for FM voice, but worthwhile for me. I know that performing surgery on a new expensive radio which is still under warranty may be scary, but it’s the only answer I have found, and it actually isn’t an extensive mod - just soldering the cable(s) directly to the appropriate points. Since I don’t own a 9700 (still using the IC 970), I haven’t looked at the schematic to locate the appropriate attachment points, but maybe worth a look if you can’t find another option and 9600 is critical for you. Here’s a link to the mod for the 970 for reference as to what is typically required: https://manualzz.com/doc/23724528/modifications-for-the-icom-ic-970-ic (it’s the 2nd mod down)