[amsat-bb] Re: ISS frequencies

Sil - ZL2CIA zl2cia at amsat.org
Wed Nov 4 22:04:59 PST 2009

Tim Goodrich wrote:
> What is the best way to determine what frequencies are operational for ISS?
> I have a list of them all, but I noticed on issfanclub.com that it says only
> one is operational at a time. By the way, this site is supposed to answer my
> question, but from what I can tell, it doesn't appear to be updated much.
> Also, I listened for activity on the 1945 PST pass, but didn't hear
> anything- not even the beacon. 
> Tim
Hi Tim,

I'm not sure what 1945 PST is in UT, but I heard the ISS today at 11:44 
NZ summer time (22:44 4 Nov UT) and 1323 NZST (0023 5 Nov UT).
The digipeater was active on 145.825 MHz.

I find the only reliable way of determining the operating frequency is 
to listen. That said, packet is now almost always heard on 145.825 MHz. 
If it isn't, it usually means the gear is turned off, but it can mean 
that that other modes are active, and it's worth tuning around the 
likely frequencies.

The site www.ariss.net shows that the ISS gear is currently active in 
the digipeater mode.

Sil - ZL2CIA

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