[amsat-bb] Re: ECHO

Patrick Green pagreen@gmail.com
Fri Aug 25 07:59:34 PDT 2006

How's your noise floor.  I have the same issue here.  the 1/2 watt TX is
barely enough when I'm at home (urban area) and due to a high noise floor.
When I'm out in the country, I don't have problems hearing the 1/2 watt TX
with the same arrow antenna setup.  If this is a fixed setup, perhaps a
bandpass cavity on the RX would work.  I don't know how well this would work
in satellite doppler but it's very effective at removing intermod on my
fixed terrestrial APRS station.

73 de Pat --- KA9SCF
Amsat #35741

On 8/25/06, McGrane <tmcgrane@suffolk.lib.ny.us> wrote:
> greetings
> I would like to report very poor reception of echo even with an 8 element
> yagi and an 18 Db preamp. I assume the downlink power is real flea power
> for battery charging or other testing.
> After 2 years of pleading with amsat, the downlink power is still a
> mystery. It is not shown on the colaradosatellite telemetry graphs (TX B)
> or the amsat website, after repeated requests here and elsewhere I'll
> assume it is being held secret for some reason.
> There has been a tremendous lack of technical reporting on ECHO.
> I realize people are very busy but time should be taken to educate the
> amsat community.
> 73, patrick N2OEQ 32323
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