Anyone who would like to clone the HP K34-59991A Pase Comparator?
Maybe just add a 'maginfier'.
Adrian
Dan Rae schrieb:
Raj wrote:
I was thinking of feeding two 10 Mhz signals to two ports of a SBL-1
or similar and taking the DC
output at the IF port into an opamp or analog meter. This was
visually easier to adjust the drift between two frequencies by just
watching the needle move. A stationary needle over a couple of hours
would be the best!
Raj, I did exactly this but with an old chart recorder attached to the
mixer IF port. This allows one to leave the room and not have to
watch for hours or days. I was able to adjust my -hp- rubidium unit
this way against gps to better than one cycle per day.
Low tech but effective.
Dan
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