[TowerTalk] Speaking of the HP-8405A Vector voltmeter...

[Gedas]

I have enjoyed reading this thread, and then, it got even more interesting for me when I saw the ole HP voltmeter mentioned.  I have one of these, with the manual in FB shape as of about 1 year ago.  The problem is I am not sure how to use it for making different antenna related measurements.  What I really would love to know is if there are any available texts or documents that might serve as an app note to using one of these.  If anyone has any notes or publications or locations where I can go to see practical descriptions on test setups etc useful for antenna experimentation, please let me know. I would be very happy to reimburse you for any trouble and/or copy expenses etc if you have something and would like to share it with me.  Much like the MFJ antenna meter, which people have found dozens of uses for, I wonder if the same is not true for this ole thing.
73,
Gedas

e-mail  w8bya at mchsi.com
online gallery  http://gedas.cc
web page  http://www.w8bya.com

----- Original Message ----- 
From: "W0UN -- John Brosnahan" <shr at swtexas.net>
To: "Dino Darling" <k6rix at earthlink.net>; <towertalk at contesting.com>
Sent: Thursday, July 14, 2005 7:45 PM
Subject: Re: [TowerTalk] Measuring electrical length of coax...


At 10:10 AM 7/14/2005, Dino Darling wrote:
>Hello John, how do you test your lines and what equipment do you use?
>
>I've experimented with the MFJ 259B for stubs and phasing lines, but if it
>is critical, I'll order lines from M2.  I'd sure like a good method that I
>could employ myself.  Also, do you short the end of the coax or leave it
>open.  The MFJ book lists both methods.

I am spoiled ROTTEN!  In the old days I used an HP-8405A Vector Voltmeter.
But now I use an HP-4195 Spectrum/Network Analyzer.  I can cut a tenth inch
off and watch the null shift by a few KHz.  It makes it TOO easy.

There are lots of ways with Antenna Analyzers and Grid Dip Oscillators, but
once you have the expensive gear you won't go back.    ;-)

73  John  W0UN



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