[TowerTalk] Cushcraft ma160v matching coil

[W0MU Mike Fatchett]

I think you misunderstood.  I have the directions from Cushcraft.  If 
you put this antenna under a better radial field you need a matching 
system.  One option is a shunt coil.  I used the DXE example as they say 
it works on 160.  Other matches are also options.

With just a few radials the match is great and the losses amazing I am 
sure LOL.


On 11/13/2016 8:53 PM, Guy Olinger wrote:
> 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 
> <mailto: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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