[NLRS] line noise

[Dr. Gerald N. Johnson]

Salt splashed on the insulators from traffic on the roads or from 
sprayers applying it several feet high and making some floating vapor 
reduces the insulation gap on insulators and so there are AC currents at 
the voltage peaks.

Cold weather also contracts poles and where ground connections depended 
on the compression of the wood, (verboten in Collins design standards) 
tiny air gaps open up and electrostatic fields  and leakage currents to 
those ground wires make those gaps arc to make noise. Sometimes that 
happens with connections made of dissimilar metals where the aluminum 
parts shrink faster than copper or steel when it gets really cold. 
Sometimes a little warmth solves these problems like rain solves the 
salt on the insulator problems. It should be getting cold there again to 
see if its cold or salt.

73, Jerry, K9CQ

On 1/23/2014 1:00 PM, Herb Krumich wrote:
>
>
> Someone on this logger had mentioned he had bad line noise due to salt or brine being put on the roads over the contest weekend.
> I am in the Pocono's in Pa,  got hammered on 50 mhz over the weekend. And yes we live on a state road which was treated, since we had 8 inches of snow on Saturday.
> By Monday ( thank you ), the noise had vanished
> Please fill me in
> Thank you
> Herb at WA2FGK FN21
> ______________________________________________________________
> NLRS mailing list
> Home: http://mailman.qth.net/mailman/listinfo/nlrs
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:NLRS at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>