[time-nuts] Measurement of frequency of HP 8720D option 1D5 oscillator after switch on
john at miles.io
Sat Oct 4 22:03:16 UTC 2014
> -----Original Message-----
> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Dr. David
> Kirkby (Kirkby Microwave Ltd)
> If I recall correctly, when I did look some time ago at getting
> another TI counter, the Agilent 53230A seemed to have some
> specifications *worst* than the 5370B it replaced. It was not clear it
> was an upgrade.
> This 53230A on eBay does not seem very good value, at about 60% *more*
> than the price of a new one from Keysight!!!
> Perhaps I should ask what discount I could get if I buy 10!
> I just stuck an offer on a SRS 620, which is sold as seen. I'll take a
> chance it works if my offer is accepted.
The 5370B is still the only high-performance counter that I own, personally. SR620s are fine as far as they go, but if they have any strong advantages over the 5370 I don't know what they are. Spending more for a 53230A isn't necessary unless you have a specific need for something that only it can do (and I don't).
My OCXO test bench runs on a 5370B in a separate building. I go over there once a week, swap the oscillator under test, restart the script, and forget about it until the next week. (E.g.,: http://www.ke5fx.com/ocxotest.png , generated by the TimeLab version at http://www.miles.io/timelab/beta.htm). It's pretty handy for just this sort of scenario.
-- john, KE5FX
Miles Design LLC
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