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So when I try to work the ISS digipeater, what should I set the digi path to be?

My setup is a 5 W HT with a 2 m yagi connected to my phone with APRSDroid.

I've tried the past few nights with ARISS R0ISS and WIDE2-2 and none seem to get picked up (granted some passes I've tried haven't been very high, ~25°).

EDIT: I can hear and decode MANY packets (more than I can generally hear while on 144.390 APRS in my area). I'm also adjusting for doppler shift. I've not heard of adjusting for polarization, what would that entail? I'm using a 3 beam yagi that I made and generally try and track it while holding it generally horizontally. I apologize, I'm fairly new to this; I've had my Tech for a few years but haven't done much with it until recently.

JW03
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2 Answers2

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According to the PDF that Duston mentioned, your UNPROTO path should be CQ VIA ARISS. WIDE2-2 would cause your packets to be repeated twice if terrestrial digipeaters should hear them. Presumably you're using the ISS VHF APRS frequency 145.825 MHz rather than the North American terrestrial APRS frequency 144.39 MHz, so WIDE2-2 packets shouldn't be unnecessarily digipeated, but WIDE2-2 would be incorrect.

rclocher3
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0

According to this PDF, if you want to send APRS data via the ISS, you format your UNPROTO packet with the data you want to send. The digipath is irrelevant because you're going directly to ISS.

I used a plain old vertical antenna with not a lot of power and got packets through.

Kevin Reid AG6YO
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Duston
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