Following on from my question the other day about the type of oscillator in the HP 8720D VNA, I finally got around to setting this up on the spectrum analyzer today. Luckily, some software I wrote back in 2008 for a friends HP 70000 system was easy to modify to grab the save the frequency. So I can now grab the data. I will post a plot later, once I have collected the data from a cold start. But it got me wondering, how long do ovens take to cool? I'm sure it must depend somewhat on the oven.
According to someone on this list (sorry forget who), the option 1D5 is an oven, but not a particularly good one. Unfortunately he can't share the data he has on it, which is a bit annoying, but I understand his reasons. Anyway, later today (tomorrow ??) I will post a plot of frequency vs time. The question is though, how long is thing thing likely to take too cool? My lab is air-conditioned, set at 23 deg C, though it varies about +/- 1.5 deg C from that. Dave _______________________________________________ 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.