[RFI] DFing an HF RFI source

Tom Rauch w8ji at contesting.com
Tue Oct 17 14:36:24 EDT 2006

> In my experience, 1-Hz "ticks" are almost always an 
> electric stock fence with a problem, such as a wet post or 
> weeds partially shorting it to ground, causing an arc. 
> However, they aren't band-specific.

Same here.

As a rule arcs, as created in a poorly installed fence, are 
very wide bandwidth with very gradual level changes as 
receiver frequency is varied.

Tics that are band specific or periodic in frequencies they 
affect are from sources like clocked signals in 
microprocessor control systems.

73 Tom 

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