[FoxHunt] DF antennas for HF

[Bruce]

On Tuesday 12 February 2002 16:03, you scribbled:
> Ernie wrote:
> ....
>
> >Now to build some mobile HF DF antennas..... Anybody have some favorit=
e
> >designs for those?
>
>    I have an 80m ARDF receiver circuit submitted to QST that
>    is very easy to build.  The loop antenna is 1/2" or 3/8"
>    poly tubing bent into a 6" diameter circle.  4 turns of
>    wire and about 330pf resonates at the bottom of 80m - it

Dale's design is very clever in only shielding the coupling loop. I am go=
ing=20
to try this technique myself very soon.=20
I can attest that the directionality was fine at the German Championships=
=20
(even if the sensitivity of the reciever was a little down).

Dale, I take it that the necessary break in the shield is effectively at =
the=20
connection point (instead of at the top of the loop) ?  Does this mean yo=
u=20
have grounded the coax braid on one side but left the other side floating=
 ?
Does this casue any noticeable inbalance (skew) ?

Cheers,
Bruce                                          ICQ: 32015991