[Elecraft] Off Topic -- Yagi Antenna SWR measurement ?

[Mel Farrer]

I used a 12 foot tall four leg scissor ladder.  Close but no cigars.  The lower bands will probably show the higher SWR, and a lower shift in freq response.  As long as the pass band is close it will probably be OK.

Mel, K6KBE




________________________________
 From: WM3M <wm3m at live.com>
To: mcduffie at garymcduffie.com; elecraft <elecraft at mailman.qth.net> 
Sent: Friday, July 12, 2013 8:09 AM
Subject: Re: [Elecraft] Off Topic -- Yagi Antenna SWR measurement ?
 

What I have done is clamp it to my wooden deck railings on a 8 foot mast, 
the higher your deck is the better.
That worked pretty well for me, little change once it was up in position.
73 good luck
Emory  WM3M

-----Original Message----- 
From: AG0N-3055
Sent: Friday, July 12, 2013 10:58 AM
To: elecraft
Subject: Re: [Elecraft] Off Topic -- Yagi Antenna SWR measurement ?

On Fri, 12 Jul 2013 07:50:43 -0700, Phil Hystad wrote:

> Question:  is this accurate or does the proximity of ground (maybe two 
> feet high)
> so strongly affect the SWR reading that the measurement is not accurate.

Not accurate at all.  Most manufacturers say to stand the beam up so it
is pointed straight up into the sky, reflector down, to do such checks.
I still don't trust that, but is better than having it parallel to the
ground.  Keep everything (including yourself) away from the elements
during the test.  Get it out in a clear yard, as far from wires and
buildings as possible and point it into the sky.

Gary
-- 
http://ag0n.net
3055: http://ag0n.net/irlp/3055
NodeOp Help Page: http://ag0n.net/irlp
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html 

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html