[K3CAL] MFJ-259B Calibration

Wa4prr wa4prr at comcast.net
Sun May 19 02:19:22 EDT 2013


Shawn, don't you mean OHM instead of Watt loads?  73,

Ron Byzet / WA4PRR - Sent from my iPad

On May 18, 2013, at 6:29 PM, N3AE <n3ae at comcast.net> wrote:

> Someone from the club asked me about an article I found on how to calibrate a MFJ-259B antenna impedance meter.   Unfortunately, I forgot who asked me.  Sorry to bother you if you're not interested.
> 
> The procedure can be found at http://www.mfjenterprises.com/pdffiles/MFJ-259B_Calibration.pdf
> 
> Also at http://www.w8ji.com/mfj-259b_calibration.htm
> 
> The procedure requires some high accuracy loads constructed with 1% non-inductive resistors and PL-259 connectors.  I bought the parts (connectors and 1% resistors) but have not put them together yet.
> 
> Loads needed:
> 
> A.   Short
> 
> B.     12.5-W load
> 
> C.    50-W load
> 
> D.    75-W load
> 
> E.     100-W load
> 
> F.     200-W load
> 
> 
> 
> 
> Shawn - N3AE
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