This listing is for REPAIR SERVICE only, not sale of units.

If you have one of these excellent little spectrum analyzers with the really annoying LO1 fault which won't clear at all, or just intermittent enough to drive you nuts, read on.

Tried "touching up the solder" after spinning a mug full of screws? - Only to encounter "Same Fault, Slightly Different" by the next day?

We provide the proper, permanent repair for this condition.

Just purchase the repair service, and send your MS2721B in to our shop USPS postpaid, which will be provided within the day. It will be repaired, performance checked and returned within a week.

Then enjoy using it as designed! (or flog it for a decent price, vs "parts only"!) 

Note: If your unit has any other issues aside the LO1 problem, please contact me first!