mram1500
Junior Member
No Jab -Just Fact
Posts: 67
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Post by mram1500 on Sept 10, 2018 0:52:59 GMT
With all the rain we've had for the last few days, the coverage of my carrier current station seems to have increased dramatically.
I use neutral injection. I felt coverage would be fairly consistent regardless of ground condition. Apparently not... I guess ground conductivity for that isolated ground has effect.
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Post by thelegacy on Sept 10, 2018 7:49:02 GMT
Thanks for that report. Lots of rain in Deltaville,VA. I'd like to know what my range is now.
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Post by Boomer on Sept 10, 2018 12:43:00 GMT
Rain-ge changes
Normally my range doesn't go up with rain, though it seems we've had an exceptional amount over the weekend, so I don't know if that will change things.
My range reduces during rains, I think it could be because the poles are wet, with more noise on the lines due to insulator leakage.
I don't have the isolated ground, I'm using power line grounds, with a current transformer on the line to feed the RF, so no direct connections to the lines or neutrals, both phases and neutral fed as a bundle, so that could affect it I'd think.
Colleague Carl Blare has found large range changes in his setup when it rains too and the range gets longer.
What I've wondered about carrier current and grounding is if a radial ground field, like an antenna station has, would help with carrier current and it's loop based transmission method.
It would seem that better earth connections, like more ground rods, deeper buried grounds would help carrier current, because the signal spreads out through the wiring, then returns through all of the successive loops, through pole grounds and power grounds in homes, small currents back through the earth from each one of those ground nodes, to your station's grounding system.
Boomer
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