[amsat-bb] Re: Tranzit-B telemetry system on ISS

Gordon JC Pearce MM3YEQ gordonjcp at gjcp.net
Tue Mar 17 03:32:09 PDT 2009

On Mon, 2009-03-16 at 23:57 -0600, Nate Duehr wrote:

> Just saying it smelled fishy to me -- assuming an FM receiver.  No  
> harm meant by it.  The typical FCC TSO'ed AM aircraft transmitter is  
> 5W PEP, some are 10W PEP.  5W PEP AM to an FM receiver to be well  
> detected at ISS's range is certainly do-able, but it wouldn't sound  
> very good, I'd think.  Don't know.  All depends on the receiver  
> quality, of course... a bunch of stuff.

Further to my earlier message, a quick experiment has shown that my
Kenwood TH-F7E (same one I picked the Edinburgh guys up with) gives
intelligible but not brilliant audio from aircraft when it's set to FM.
This may be down to the radio.  I can post a couple of recordings, if
you like.


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