[TowerTalk] Fwd: Change in Frequency As Antenna Height Rises

jimlux jimlux at earthlink.net
Wed Jun 1 23:22:25 EDT 2016


On 6/1/16 7:00 PM, john at kk9a.com wrote:
> Towertalk is definitely educational!  I was also not aware of the way the
> resonant frequency changed at low heights.  I still see no point in checking
> the SWR of an antenna near the ground.  You can use an ohm meter if you're
> unsure of your connections however it was an interesting discussion.
>


Actually, measuring SWR (or resonant frequency) might be useful close to 
the ground to make sure it's assembled right with the right traps, etc.

The trick is you need to compare the resonant frequency against a 
measurement (done by the mfr) in a similar configuration.





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