Radio Squelch - Electrical Noise Problems

On Tuesday, June 12, 2018 at 1:31:40 PM UTC-4, Martin Gregorie wrote:
On Tue, 12 Jun 2018 07:20:50 -0700, lbraithwaite wrote:

I haven't tried a "12v interference suppression capacitor" yet, will
order some. Will also order some copper foil to wrap around the flarms
(or possibly to make a hat

I could be wrong, but I think these capacitors are only useful for
dealing with interference generated by a sparking commutator and brushes
in an electric motor. In a glider you'll only find these in mechanical
T&Bs and artificial horizons.


--
Martin | martin at
Gregorie | gregorie dot org

Any energy at radio frequencies can be filtered that way. Probably best to combine both a capacitor (across the wires, only on power supply wires, not signal wires) and a ferrite ring in close proximity. Try the ring at either side of the capacitor, but I would expect the best noise reduction with the ring on the side towards the noise-generating device.