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Old 14th Jul 2020, 12:42 pm   #37
G4YVM David
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Join Date: May 2014
Location: Salisbury, Wiltshire, UK.
Posts: 998
Default Re: Static on antennas

Quote:
Originally Posted by G6Tanuki View Post
In times when I've experienced static-buildup-on-antennas I've been happy to fit a low-wattage high-value *wirewound* resistor or two from the static-afflicted parts to the RF ground.

Something like 10KOhms 5 Watts.

The wirewound-ness provides a HF/VHF-choke effect, so it doesn't cause significant waste of RF power or 'RF unbalance' - and a resistor of 10K to the local RF-ground won't cause any significant risk-currents if your DNO's neutral/grounding arrangement fails so the neutral/ground 'floats' towards the supply-phase voltage.
I always thought common wisdom said NOT wirewound resistors.

D
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