[ICOM] Re: Help with Severe Electrical Noise

Ron Hashiro rhashiro at hawaiiantel.net
Sat Mar 1 07:14:52 EST 2008


Some other thoughts and tips.

(1) Is the breaker circuited only to your shack, or are there other 
rooms and locations that is on the circuit?

(2) Since electrical noise is rich in harmonics, try using an aircraft 
scanner, or if your two meter walkie goes into the aircraft band, use it 
with a short antenna -- perhaps a beam to sniff out the noise.  The 
aircraft band is AM, and is several harmonics up.  Since it's harmonics, 
the TX power is much weaker and localized.

(3) Maybe the HF rig has gone bad.  Try borrowing another HF radio and 
see if you get the same results.

Ron H, Ah6RH
http://ronhashiro.htohananet.com/am-radio/in-hawaii.html



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