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Thanks Shockwave. I should have thought of the DC actuator motor. After focusing on that and the fact that the un-shielded wire to the thermostat was acting as a radiator turned out to be exactly the problem. I put 11 ferrite cores on all wiring surrounding the DC motor and replaced the thermostat wire with Shielded Cat-5 and I dropped the noise from an S9 to zero. I can faintly hear the sound, but it no longer prevents reception of even the weakest signals.

It took a while to pin-point, but thanks to the help here; I finally solved the issue. For FREE!

[QUOTE="cheddarspaz2, post: 413053, member: 23476"] Thanks Shockwave. I should have thought of the DC actuator motor. After focusing on that and the fact that the un-shielded wire to the thermostat was acting as a radiator turned out to be exactly the problem. I put 11 ferrite cores on all wiring surrounding the DC motor and replaced the thermostat wire with Shielded Cat-5 and I dropped the noise from an S9 to zero. I can faintly hear the sound, but it no longer prevents reception of even the weakest signals. It took a while to pin-point, but thanks to the help here; I finally solved the issue. For FREE! [/QUOTE]

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