[Lowfer] Antenna Analyser Mod?

[KD7JYK DM09]

It'll be a month or so before I mod mine.  I need to sweep a MF antenna I'm 
building that's below the default range of the 249.  I've thought about 
adjusting the stock inductor before doing the mod, it might get me down to 
660 KHz, on the other hand one of the things I'd like to be able to do is 
sweep antennas for 600m and 1750m although the stability might be an issue 
with a high-Q antenna.  I might do multiple inductors, there's a lot of room 
in the unit.

One problem I've had since day-one is the factory battery mounts.  The 
original nylon holders shattered, they are currently held together with a 
lot of fiberglass tape and electrical tape with a small sheet of open-cell 
yellow foam between the PCB and batteries to keep them in place.  Strangely 
enough, the factory battery holder-holders were glued into place!  They were 
just little 9-volt battery clamps, I popped them out with a screwdriver 
since one came loose anyway.

I bought several 4-AA cell holders and will silicone them into the bottom, 
put a longer power harness on the unit for when I open it and the holders 
have snaps for connection so I can seperate the case.  I'll still have a 
foam sheet in there for protection in case the unit is jarred and a cell 
pops loose.

So, just rambling here....  Do I do a mod with one L or two.  Should I use a 
rotary switch with multiple L and a 50 Ohm calibrate position or just adjust 
what's already there?  I guess that would depend on what the current L gets 
me.  On the other hand, the mod can pick up where the current low end 
stops...

Kurt