[50mhz] cushcraft a50-5 swr

[Jonesy W3DHJ]

On Thu, 16 Feb 2012, W5JMW wrote:

>I am getting ready to put up a cushcraft a50-5.once I get it on the
>tower it will be hard to tune so I am trying to get a decent match on
>the ground.OK,I know the problems with doing this.I had it tuned to a
>nice match at 5 ft off the ground.It is going up tomorrow and went ahd
>and cjhecked the dimensions.At the factory settings the swr is
>outragous.I can tune it to a decent swr but it is way off the factory
>settings.My question?? is this normal? should I re-tune for good swr
>settings at 5ft or go with factory and pray it will be ok on the tower?
>any thoughts..73 john

Point the antenna straight up -- with the reflector at least as far off
the ground as the distance between the reflector and the driven element.
And, insure it's pointed straight up at open sky...

If you are using something like a MFJ-259 to check the tuning and the
SWR, do not stand 'in' the antenna to do the measurement.  Use a
n*1/2 wave section of coax to connect the device to the antenna and
stand/sit/lay well away from the antenna to observe the measurement.

I oft times find the antenna pamphlet 'suggestions' for setting up an
antenna to be somewhat removed from reality.  HI!HI!

73
Jonesy
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  Marvin L Jones     | jonz         | W3DHJ  |  linux
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