[Elecraft] counterpoise

Sat Apr 5 12:42:02 2003

If the vertical is attached directly (no feed line) to the output of the =
K2
(assuming you are using a KAT2 ATU), then the counterpoise is attached =
to
the case of the rig itself.

If the antenna is separated from the rig with a matching network at its =
base
and fed by a feedline with a low SWR on it, then the counterpoise wire
should attach to the ground side of the matching network at the antenna. =

In any case, the counterpoise should be 1/4 wavelength long for the band =
you
are operating on.

In each case, the counterpoise will have a high impedance (and high RF
voltage) at the far end (so be sure it's insulated there) and a low
impedance (low RF voltage) at the rig end. That's the objective: provide =
a
low-impedance RF "ground" for the antenna.=20

Ron AC7AC
K2 # 1289

-----Original Message-----
From: [email protected] =
[mailto:[email protected]]
On Behalf Of Greg White

I am using a K1 and K2 at the present time andwould like to use one of =
the
small vertical whips for quick portable use.  Should my counterpoise be
connected to ground or the vertical itself?  Thereis a first time for
everything!!