[TowerTalk] Cushcraft ma160v matching coil

[Guy Olinger]

Oh yeah. SWR is sooo great when everything is lossy as all getout. More and
more radials will show you where it's actually tuned, for sure.

As to tuning method, text on ma160v at DX Engineering says this:

"An adjustable stinger provides coverage on any 40 kHz segment across the
1.8-2.0 MHz band."

That would imply you're not supposed to change the coil, but change the
stinger to move the center frequency, and the stinger should have enough
range of adjustment to go anywhere 1.8-2 MHz.

The manual says radials should be notched into the ground.

73, Guy K2AV

On Sun, Nov 13, 2016 at 9:58 PM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:

> Has anyone built their own coil for this antenna? With a lousy radial
> field you don't need a match.  I installed a few more radials and now the
> swr has jumped and the bandwidth is tiny on this antenna.
>
> DXE sells a matching coil that used 16 turns on 1.5 to 2 inch tube.  I
> have a bunch of solid copper ground wire to build my own.
>
> I was just curious about how many turns people needed if anyone had tried
> this.
>
> W0MU
>
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