On Thu, Feb 22, 2007 at 12:29:35PM -0800, John Miles wrote: > What do people observe on their 5370A/Bs? After warmup, I tend to see a > bias of about +0.0005 Hz, or 5E-11, when observing its own 10 MHz source. > There is some occasional random waffling on the order of about +/- 0.001 Hz > but for the most part it reads close to 10.000 000 000 5. > > I have never been able to calibrate the interpolators (specifically the > anticoincidence adjustment) in these counters, due to lack of a > vernier-adjustable pulse generator. When I was going through one last week, > I just left the anticoincidence pot in the middle of its range, and couldn't > see any ill effects from doing so. The manual is not that great at > describing exactly what this adjustment does. > > -- john, KE5FX
Mine is off more (or was until it died a couple of weeks ago). But I have yet to attempt the full cal procedure for reasons similar to yours. I did find that using GPSDO 10 mhz the error was quite stable (always reading low in my case, not high) but apparently just barely within the spec in the manual. -- Dave Emery N1PRE, [EMAIL PROTECTED] DIE Consulting, Weston, Mass 02493 "An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either." _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts