[amsat-bb] EO-80 FM Transponder Tested (noise floor?)
bruninga at usna.edu
Wed Jun 17 21:07:51 UTC 2015
If I read that correctly the charts are showing almost 20 dB or more higher
noisefloor measurements on VHF than UHF. That is a huge difference.
But in the text they say it is "30 dB" higher. I haven’t had time to dig
out why the say that, but at a first cut, this shows the 9 dB link advantage
of VHF over UHF vanishes at the ground station trying to hear a weak signal
in the noise...
I did not have time to thouroughly digest the report. SO may have jumped
to the wrong conclusion based on the details.
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of M5AKA
Sent: Wednesday, June 17, 2015 1:23 PM
To: AMSAT BB
Subject: Re: [amsat-bb] EO-80 FM Transponder Tested (noise floor?)
Results of Ambient RF Environment and Noise Floor Measurements Taken in the
U.S. in 2004 and 2005
73 Trevor M5AKA
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