Fozgometer

If it can't be calibrated to the test tones, it is out of whack. Nothing subjective about that.

Thanks. I had the impression from the other posts that the Foz could be calibrated with the test tones and then still give incorrect readings when used to set azimuth. If that were the case, one would have no way to be sure whether there was error and precisely how much error.

Yup.....mine was really wrong, and Mike send me a whole new one. He tested and adjusted it and it now works fine. I guess its like an Alfa Romeo. When its working, its wonderful, but you need to keep a repair shop close by. ( I had a Duetta...the red sports car from The Graduate)

An additional comment or two to my previous post:
Mike Fajin also asked me about the equipment I used during my
calibration attempts. I had downloaded the test tones to my HP
laptop, and connected the laptop to the Foz using an
inexpensive splitter cable with a mini jack on the computer
end, and RCA jacks on the other two "legs" of the
cable. Fajin said a cheap splitter cable (i.e., from China)
could be a problem, and also that playing the test tones from
the laptop, rather than burning the test tones to a CD and
playing it on a CD player, might also introduce inaccuracies.
His advice was to burn the test tones to a CD and use that to
calibrate the Foz, and to use good quality interconnects from
the CD player to the Foz.

P.S. I got my Foz back from MS and it seems to be working
fine. When MS calibrated the unit, it was set to 30db, rather
than 20db as the unit's instruction manual states.

If this thread was the only source of information about the Fozgometer, I would conclude that the product isn't functionally reliable.