Most likely the compressor, just because it's larger.
73,
Scott K9MA
On 2/8/2020 12:26, Kim Elmore wrote:
My understanding is that the RFI is generated by the variable speed
motor controls. In these systems, both the compressor and the
forced-air run at variable speeds. Which is the main contributor to
the RFI? These units will be maybe 30 ft from my tower; I shunt-feed
my tower for 160 m, so they will be in a relatively high RF environment.
*IF* we replace our current units (and that's a *very* big if), I'll
make sure that the thermostat line is also filtered one way or the other!
Kim N5OP
On 2/7/2020 3:44 PM, Jim Brown wrote:
On 2/7/2020 1:11 PM, krgoodwin@comcast.net wrote:
The culprit was the thermostat line
(4-conductor) where installing an RF filter (LC circuit) on each of
the four
conductors in addition to some ferrites on the line easily solved the
problem. Next re-install I will put in a shielded multi-conductor
thermostat control line which was my baseline for the house LAN
(shielded
ethernet line). Shielded cat XX (ethernet) line costs more but I
think the
cost is worth it since my tower/beam is right next to the house
--
Scott K9MA
k9ma@sdellington.us
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