[aprssig] FW: FM Squelch blocks everything!
aprssigZbr6 at acarver.net
Fri Feb 3 14:52:54 CST 2017
You have a defective or poorly designed radio that won't show the signal
strength regardless of the squelch setting.
On 2017-02-03 05:58, Robert Bruninga wrote:
> Fired up our next UHF cubesat card for first test and the ground station got
> full S9 carrier but signal was full of noise totally masking the data tones.
> Turned off. Channel was clear. Then opened squelch and there was S9 noise over
> 5 Mhz around our UHF downlink.
> Went down the halls with HT and signal tapered slowly down in all directions.
> Came back and with 1” of wire in the HT antenna connector narrowed it down to a
> cheap battery charger.
> Lesson over and over again, is that a squelch HIDES everything Even 20+S9 noise
> sources. Zero bars while squelched.
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