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Author Topic: Coax along romex (house wire) and elec panel  (Read 2165 times)
VA6CLA
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Posts: 1




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« on: September 04, 2007, 07:27:00 PM »

Hi there,

One unfortunate reality of my QTH was that the most convenient and shortest distance for my COAX was to come in at the corner of my house where my elec panel is. the bulk of the romex wires from the panel run by my coax. I do have a fair bit of noise on my radio. Would it be coming from the romex house wiring... or would it likely be another source? I am running a VERT into LDG dts4 coax switch, bencher ya-1 low pass, 706mkIIG. MFJ 4245 switching power supply off filtered/surge bar.

TIA, VA6CLA
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KE3WD
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Posts: 5688




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« Reply #1 on: September 04, 2007, 07:46:25 PM »

Most times any noise would be AC hum, but there might be a lot of switching power supply noise on your AC lines these days that could conceivably ride the coax shield.  

Try coiling a 1:1 balun on the coax in the shack and see if the noise reduces.  Just wrap 6 to 10 turns of the coax around a 2 liter soda bottle concentric and close together as possible and tape it neatly to see.


KE3WD
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KB9CRY
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« Reply #2 on: September 06, 2007, 10:16:37 AM »

it is likely to be another source
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