Hi Bob,
Two different radios are used on the ISS. The SSTV pictures on 145.800 were sent using the Kenwood rig in the Russian segment. The packet digipeater on 145.825 is an Ericcson HT at lower power and different antenna than the Kenwood rig.
On Saturday when the SSTV signal was still just an unmodulated carrier on 145.800 I was able to digi on 145.825 up/down.
-- 73 de JoAnne K9JKM k9jkm@amsat.org AMSAT VP User Services
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Bob KD7YZ Sent: Wednesday, July 22, 2015 9:01 AM To: AMSAT BB Subject: [amsat-bb] Is ISS Digipeater not always on for use?
The reason I ask is because the other day when ISS was xmit SSTV, I was able to digipeat through the 145.800 ax.25. As this was my first ever try at such a mode, I wasn't real sure what the heck I was doing.
The last couple days I have tried to digipeat through but don't even hear anything on 145.800/145/990 .
73,
Bob KD7YZ http://www.qrz.com/db/kd7yz AMSAT LM#901 _______________________________________________ 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