[50mhz] Advice in CM87 Grid.

[Ray Brown]

----- Original Message ----- 
From: "Mike McDonough" <mikes120db at yahoo.com>



> Hello fellow 6ers,
> Just put together a 6m Ground Plane with 2 Radials(everything 1/4 wave)
> with the Trimmin's cut for the Voice Segment of the Band. Would like to
> Operate on the A.M. (.400) of the Band, but am willing to wait for some
> advice on whether or not to use a Choke(Coax) if I need 1 to keep from
> frying my Radio.

  If you're only running two radials, you might indeed need a coax choke.
Just that a ground plane should have 4 radials. I'm running 2 of those 1/4-
wave ground-planes on my split-site 6m repeater with good results. But your
SWR will be off it it's tuned for 52.52 and you're down at 50.400. Maybe as
bad as 3:1 I know, I have built a 6m j-pole a few years ago and it's great at 
52.52, where I tuned it up, but it is 3:1 at 50.125 (and that's with a current loop).

  Just my opinion. :-)


                Ray, KB0STN