|Subject:||[TowerTalk] P.S.: Surge supression|
|From:||"Rob Atkinson, K5UJ" <firstname.lastname@example.org>|
|Date:||Fri, 07 Nov 2003 18:45:11 +0000|
It seems to me that it will nevertheless still add an unwanted rf ground
loop. It sounds like it might not be a problem provided you have common
mode chokes in the feedlines between exciter and amp, and amp and transmatch
(or if no transmatch, amp and feed to antenna), i.e. each item in the rf
chain has a choke in the feedline between it and whatever's next.|
Rob Atkinson K5UJ
<<<This connection to the AC safety is there anyway unless you are using cheater plugs on all your AC cords. The chassis' of all your rigs and amps are connected to the third wire ground of your AC service. Those chassis' are in turn connected to your single point RF ground via the coax cables going through the SPG panel. Running an extra wire from the AC service ground to the RF SPG probably won't change much since you will just be putting a wire in parallel with multiple connections that are already there. The only way to get around this is to bring the AC service into the shack through the SPG.
73 de Mike, W4EF..................>>>
3rd<<<The [surge supressor] in the station should be grounded to the single point station ground panel, as well as to the home safety ground.>>>
wire on the house service lines.>>station
so RF can get into places you don't want it.
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