[Lowfer] frequency counter calibration

[Douglas D. Williams]

I found an old Optoelectronics hand held frequency counter, model 2810,
that I had almost forgotten I owned, in a drawer in my "electronics junk
closet". I remember buying this new probably ten or more years ago. The
built-in NiCad battery pack would no longer hold a charge, so I found a
replacement on Ebay for $16 + shipping. Got that soldered in and the
frequency counter is again operational, but I question it's calibration
after all these years. After contacting Optoelectronics, they want $75 plus
return shipping to calibrate it. "Calibrating" it simply involves supplying
it with a known frequency standard of 10 MHz or greater and turning a small
screw on the front of the unit. It doesn't even have to be opened up.

Any of you gentlemen who own a GPS referenced 10 MHz or higher frequency
standard willing to "do a Bro a solid" and calibrate this unit for me? I
will of course ship it to you and include return shipping costs in the box.
I have the manual and a suitable oscilloscope probe for connecting to your
frequency standard source.


73, Doug KB4OER