[amsat-bb] Carrier on 145.8 NORCAL
dtabor at estesvalley.net
Fri Apr 15 01:45:56 UTC 2016
One of the ‘offenders’ in my area of “expensive last mile internet”
is PoE where local ISPs may be using indoor grade UTP between their
radio internet transceivers and the point of power injections.
UTP acts like an antenna and power from dirty imported wall worts
(switching power supplies) is very dirty (spectrally speaking.)
Had my ISP replace my UTP with STP and problem went away. However, when
dealing with weak signals, the noise can be blocks/miles away and
pretty broad spectrum.
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