[TowerTalk] Measuring resonance of a yagi element

Edward Mccann edwmccann at yahoo.com
Tue Apr 21 22:00:33 EDT 2020


Back in the day, I’d take a couple turns around the reflector and couple it loosely to a grid dip meter.

Can’t imagine a few turns around the center of your reflector and hitting time delay on your analyzer so you can get your hands out of the way wouldn’t answer your query.

Not quite enough info in your post to be more specific, like what kind of analyzer?
 
73,
Ed McCann
AG6CX


Sent from my iPhone

> On Apr 21, 2020, at 6:02 PM, Tom Hellem <tom.hellem at gmail.com> wrote:
> 
> I would like to measure the self-resonant frequency of the reflector on a
> home made 20 meter yagi. It seems obvious the best way would probably be to
> open it up at the center and make it into a split dipole element and hook
> up my analyzer. However I would like to avoid cutting it and dealing with
> splicing it back together again. Can anyone suggest another way to
> accomplish my objective? The reason for doing this is because it is
> apparent from modeling in EZNEC that the
> length of the reflector is critical to the performance parameters of the
> antenna, e.g. gain, F/B, bandwith, etc., and it looks to me like it doesn't
> take much of a change in the length of the element
> 
> Thanks in advance for any replies.
> 
> Tom K0SN
> Missoula, MT
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