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Old November 7th 05, 06:10 PM
Richard Clark
 
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Default how to combat noise?

On 7 Nov 2005 04:04:09 -0800, "andy" wrote:

Here is the situation: have an inverted V for 80m and noise level is
S9.. Not good really....


Hi Andrus,

Put 1:1 BalUn at end of Coax transmission line as choke. This will
isolate local noise from line input. Also, does your transceiver
share a circuit (identified at the breaker) with a noisy appliance?
Change circuits (go to another outlet that is on a different breaker).
Do you have a good RF ground? This goes against much of the common
lore of dipoles being independent of ground. True, the antenna alone
requires no ground, but somewhere your rig is connected to it, and it
can be a very poor connection to a very poor RF ground. This is a
very common path for noise to enter your receiver.

73's
Richard Clark, KB7QHC
 
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