[AMPS] MFJ-259B Question

[Tom Rauch]

> Has anyone made a thorough comparison of the MFJ-259B with the AEA and
> Autek Impedance Analyzer's? The AEA seems a little sexier with the LCD
> graph display and computer interface, but I am wondering which unit
> produces the most accurate impedance measurements?  

They all suffer the same external signal limitations because they all 
use broadband detectors. The 259 is more accurate than the 
Autek, and not as convenient as the AEA.

The AEA "guesses" the sign of the reactance by measuring 
reactance shift with frequency, so the sign will be wrong in many 
cases with antenna systems. It will determine lumped component 
sign correctly. The 259, rather than "guessing", just won't give the 
sign of reactance.


73, Tom W8JI
w8ji@contesting.com

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