[Lowfer] Antenna Analyser Mod?

KD7JYK DM09 kd7jyk at earthlink.net
Fri Dec 11 00:18:36 EST 2015


: hi John, thanks for the encouragement from your web pages.  Today I
: modified my '249 with a switch and 940uH inline.  the '249 board gives
: even easier access to the switch than the '259.
: Why 940uH?  because 470uH wasn't enough and 470s are all I had here.

Thinking of getting a variable inductor for my mod so I can add another 
"band" from x-KHz to the current low end of 1.8 MHz using the current 
capacitor to tune.  I don't need to go too low right now, just something I'm 
thinking about...

Some thoughts...  Where do those that have the MFJ-249 think the instability 
is?  The only variable appears to be the tuning capacitor.  What if, for the 
mod, a fixed capacitor was switched in and a variable inductor used?  Any 
chances it would increase stability?

Cliff- Can you send me some pics of your mod?

Kurt 



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