[Lowfer] Antenna Analyser Mod?

[KD7JYK DM09]

"yes, excellent instructions.  I plan to do this to a MFJ 249 I got for
 $cheap."

"maybe a homebrewed analyzer for 2200 + 630 + ???  would be a QEX
magazine worthy project"

I haven't had a chance to look over the mod yet.  Anyone done it with the 
249 specifically?  What were the results?  My 249 stops at 1700 KHz, I need 
to sweep an antenna for 660 KHz, if possible.  530 KHz and below would be a 
BIG bonus.

Kurt