[amsat-bb] Re: Crushcraft A144-10T "VHF Twist" Antenna
nss at mwt.net
Fri Oct 4 06:14:43 PDT 2013
I had a buddy take his and slightly modify it. He took the vertical set
and optimized it higher in the band. So he had a Horizontal for SSB & CW
SWR great at the bottom of the band, and a Vertical resonant higher for
FM work, and Circular for sats, and the slight mismatch diddn't seem to
hurt it any.
The Original Rolling Ball Clock
On 10/3/2013 11:22 PM, Bill Bordy, NJ1H wrote:
> I have a Cushcraft A144-20T. Twice as many elements in each plane than
> yours. I run both a vertical and horizontal coax to my shack and use a
> crossover coax switch with phasing and impedance matching coax to
> generate switchable circular polarization in the shack. Works great
> for me. The polarization change makes a big difference at times on the
> I can also run just vertical or horizontal polarization by changing
> the coax configuration in the shack. In fact, you can use the same
> crossover switch as a SPDT to experiment with changing between
> horizontal and vertical polarization. I do this during VHF contests
> sometimes. I have also worked meteor scatter with it.
> I have been using this antenna for 25 years with no problems. I used
> it with AO10, AO13 and AO40 with no problems. The low orbit birds are
> really loud compared to the high orbits birds.
> On 10/3/2013 10:18 PM, Les Rayburn wrote:
>> I just acquired a "new" in the-box, never assembled Crushcraft
>> A144-10T "VHF Twist" antenna. It includes the cabling to allow the
>> user to select left or right hand polarization. My questions are
>> 1.) How is the performance on this antenna, compared to more modern
>> 2.) If I were going to install it inside my attic, should I chose
>> left or right hand polarization?
>> 3.) Any caveats or things to watch out for?
>> Any information that could be provided would be great. I was thrilled
>> when a friend stopped by and asked me if I'd be interested in the
>> antenna. Good price too.
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