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The International Space Station

ISS Amateur Radio Packet – 145.825 MHz

On Monday, the Amateur Radio equipment on the International Space Station was enabled for APRS digipeating on 145.825 using the path of 'VIA ARISS'.

This is good news, since PCSAT-1 should enter a FULL SUN OPERATING PERIOD later this week. If so, then we may have a period of a few weeks here when we will have THREE APRS satellites flying in constellation. ISS, PCSAT-1, and ANDE.

This will assure over 18 passes per day. And since they all respond to the same path "VIA ARISS" then which satellite is in view is transparent to the user. Just communicate!
Of course, two-hop paths via ARISS might also be possible..

IGATES on 145.825

In order for the global APRS internet system to capture all these packets, we do need volunteer ground stations to place an IGATE to monitor all packets on 145.825 MHz downlinks. In many cases, a simple OMNI antenna connected to APRS is all that is needed.

See successes on http://www.ariss.net or http://pcsat.aprs.org

P.S. We are also working on getting GO-32 enabled for APRS operation at 9600 baud. But since it uses different uplink and downlink frequencies, it cannot be used for multiple-APRS-satellite operations.

Bob Bruninga, WB4APR

Online Satellite Pass Predictions:
http://www.amsat.org/amsat-new/tools/predict/

 

AMSAT-UK publish a quarterly newsletter full of Amateur Satellite information.
Join now online at https://secure.amsat.org.uk/subscription/
Secretary Jim Heck G3WGM
Tel: +44 (0)1258 453959
Email: g3wgm@amsat.org
Website: http://www.uk.amsat.org/

 
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