[Elecraft] OT: Need Antenna Tuning Help
WILLIS COOKE
wrcooke at yahoo.com
Thu Mar 8 11:54:04 EST 2012
I wouldn't have mentioned it Jim, except Tony's funny comment muddied the water some. I like humor, but I also don't want anyone to be confused by humorous dialog. I am sure Tony knows how the analyzer works. In your case, there were enough confusing factors to leave some doubt about the polarity that was not resolved without a lot of thought and experimentation. It usually is not that difficult to reason the polarity of the reactance.
Willis 'Cookie' Cooke
K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart
________________________________
From: Jim Bennett <w6jhb at mac.com>
To: Elecraft Reflector <elecraft at mailman.qth.net>
Sent: Thursday, March 8, 2012 10:44 AM
Subject: Re: [Elecraft] OT: Need Antenna Tuning Help
I stand corrected. I should have said that it simply shows numbers and it is up to the user to figure out the correct polarity. Thanks for the input.
> I think the original statement was incorrect. The MFJ-259B does show reactance, both positive and negative, but it does not show polarity, so you have to experiment a little or add some knowledge to find out the polarity of the reactance. That is one of the reasons that the MFJ-259B is not the best antenna analyzer on the market, just a cost effective, but inexpensive antenna analyzer. My German professor when asked to explain how the science students with only 8 hours of German aced the senior German students on a major test "Man muss hab kopf!" which translates to "One must have a head" or better "One needs a brain!"
>
> Willis 'Cookie' Cooke
> K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart
>
>
> ________________________________
> From: Tony Estep <esteptony at gmail.com>
> To: elecraft at mailman.qth.net
> Sent: Thursday, March 8, 2012 9:07 AM
> Subject: Re: [Elecraft] OT: Need Antenna Tuning Help
>
> On Thu, Mar 8, 2012 at 2:19 AM, Jim Bennett <w6jhb at mac.com> wrote:
>> ... the MFJ-259B does NOT show minus reactance....
> ===========
> Gee whiz! That's pretty lame. As my favorite soccer announcer says
> when a guy misses from short range, "Me pongo las manos en la cabeza."
>
> Tony KT0NY
>
>
> --
> http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
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