[Lowfer] frequency counter calibration
Douglas D. Williams
kb4oer at gmail.com
Fri Jan 25 15:34:19 EST 2013
I am not going to give Optoelectronics close to $100 to turn a screw.
Time for them to "build a bridge to the 21st century", to coin a
phrase from Bill Clinton. :-)
73, Doug KB4OER
On Fri, Jan 25, 2013 at 3:13 PM, KD7JYK DM09 <kd7jyk at earthlink.net> wrote:
> : > 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.
>
> I just went over this with them...
>
> I need a new calibration variable capacitor. I tried to cal mine about a
> decade ago and the part went crunch. Trying to get a new part from
> Optoelectronics, it's $5 off the book, $20 or more on the book, $75 to have
> them do it, solder two leads and turn a screw...
>
> I got a handful of new parts just by asking around.
>
> Haven't repaired mine yet, but I did run it on a stable source, though off,
> it did dance around in the 100 Hz place at 470 MHz.
>
> Kurt
>
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