In article m,
(known to some as Too_Many_Tools) scribed...

I have a well stocked test bench at home containing a range of analog,
digital and RF test equipment as I am sure most of you also do.

snippety

I could post pictures... ;-)

Well the question I have is how do you handle the calibration of your
equipment? What do you use for calibration standards for resistance,
voltage, current and frequency?

Hmm. Excellent question.

For frequency, I actually have three different references, all GPS-
locked. One is my primary reference, an HP Z3801, as retired from a
cellphone site. The second and third ones are both combination clocks
and freq-references, one from Trak Systems (now Trak Microwave) and the
other from Odetics/Zypher. All three use a very stable OCXO that is
constantly disciplined by the GPS receiver.

Long-term accuracy is on the order of 1E10 -11th or so. In other
words, about as good as you can get without being NIST certified.

I don't have good primary voltage or current references as yet.
That's on the 'Acquire' list for scrounging this year. For resistance,
simple Pomona plugs with 0.01% tolerance resistors work pretty well for
2-wire. For anything more, I will probably have to rent one of the Fluke
all-in-ones.

I'm just beginning to gather the goodies I need for calibrating my
O-scope collection. That will eventually consist of Tektronix leveled
sine-wave generators, and one of their CG5xxx series calibration
generators.

Keep the peace(es).


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."