> I know I can zero-beat it by ear and get within a couple Hz out of 10MHz. > That is better then 1E-6 simply by hand, ear and screwdriver. No computer.
How do you get down to "a couple Hz"? I thought most (young?) ears dropped out at about 20 Hz and I expect lots of radios chop off more than that just to get rid of noise. Can you center the screw between two I-hear-it spots? > I figure my first upgrade is to replace the crystal with a temperature > compensated oscilator chip. Now to go find one. Don't get too focused on TCXOs. You are just as likely to find a low cost OCXO. While you are looking, keep an eye open for a TBolt or Z3801A. (or one of the Z38xxA variations) If you find one at a reasonable price, they have an incredible price/performance ratio. If you hang around here for long, you will probably get one anyway. Unless you like the sort of fiddling you have described, getting one now will save you a lot of time/effort. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
