Doing a little research I found a 32.768KHz surface mount crystal in the Newark Catalog that might be used to replace the crystal in the Battery/Clock module. It is an Epson MC306 and sells for $1.12 in the Newark catalog.
The accuracy is 20PPM, which equates to about 10 minutes/year. Since the cost is so low, you could buy 20 or so of them, build up a gate oscillator with the same 30pf capacitors as are used in the module and use a frequency counter to pick one with the best initial accuracy. The drift of the devices is only 3ppm which equates to 3.5 minutes/year. Not sure if this one fits on the module, but I'm sure there are equivalent parts that would. Bob Smith NY4Y ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
