On 12/04/17 17:00, "Tom Van Baak" wrote: > It turns out that OP (Andre) would like the readings of his vintage Black > Star (UK) Nova 2400[X] 8-digit 2.4 GHz bench frequency counter to be accurate > and stable to the 8th digit. That's all. The internal XO or TCXO is not good > enough for that last digit or two. Not to mention the cal date is 1996. > > So the good news is that he is *not* embarking on a life-long project to > build his own atomic clock. This thread is just a newbie looking for a simple > answer to an accuracy / stability / calibration question. His counter has a > BNC for external timebase, so ... > > I think it would help him if any UK/EU time-nuts: > - have a 1e-9 or 1e-10 level OCXO to spare -- which he would have to > calibrate, or > - can help him locate a surplus telecom Rb -- inherently good enough that > calibration is not even required, or > - point him to a cheap newbie-friendly 10 MHz GPSDO -- if his environment > would make that possible and reliable. Would this help?
http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=234 GPSDO with selectable output frequencies, including 10MHz. No affiliation, but would appear to fit the bill, at a (not unreasonable) cost, compared to some of the second user kit on "the bay" at times... And it's in the UK.. Regards. Dave G0WBX (or G8KBV both valid.) ~~~ _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
