Has a 9462 oscillator module in it.I've been fooling with little C hacks to make freq and phase measurements via GPIB.
In my desire to super-tweek the timebase I discovered that small adjustments take
many minutes to settle down. It's like herding cats.I noticed that physical shocks would randomize the frequency over a 10 Hz range at 10 MHz. What's more, the new frequency didn't seem to take 10 minutes to settle down. So I tapped on the oven with the screwdriver until it landed right on frequency.
The resulting plot is attached.Come to think of it, I could use the counter to measure the time between 1pps and WWVB zero crossing as an ultimate frequency reference as well as detecting changes in the ionosphere.
-- Chuck Forsberg WA7KGX N2469R [email protected] www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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