Thank you! As the old greek said nothing new under the sun,hi!
I think you did not get the whole message. So, here we go again:
Yes Ian, but there is something very important connected to this: you get
with some antennas a much lower background noise level when the antenna is
DC connected to ground.
My very long wire, endfed against my water pipe and matched with the
variable capacitive divider in a Johnson matchbox, had no DC connection
against ground and I also had flashovers when there was a thunderstorm
around.I thus got early warnings, very practical!The only way the antenna
could discharge, was a flash over or across the ceramic insulation in the
capacitive divider. I thus got piezo effects making the high noise level.
The solution was simple: connected a National R 175A choke from antenna to
ground,the static was discharged and got a much lower noise background.
73s de Hans SM5KI
--------
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>Från: Peter Chadwick <Peter_Chadwick@mitel.com>
>Till: Rich Measures <measures@vcnet.com>, Peter Chadwick
<Peter_Chadwick@mitel.com>, steve thacker <kb5vca@cei.net>,
amps@contesting.com, "'Phil Clements'" <philk5pc@tyler.net>
>Ämne: RE: [AMPS] Re:(AMPS) sb-200 troubles
>Datum: tor 12 aug 1999 10.23
>
>
>Phil says:
>
>>The safety choke should be matched to the primary CB's or fuses to be
>>robust enough to withstand the current fo the time it takes for the fuses
>>to blow.
>
>Certainly - no argument about what it SHOULD be! All too frequently, though,
>it isn't man enough for the job.
>
>73
>
>Peter G3RZP
>
>
>
>
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>
>
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