Very similar to my older HP 5315A. The original crystal had aged so much that I had to replace one of the fixed capacitors in the tuning circuit to get it close enough to be tuned by the variable capacitor. I'm now in the process of upgrading it to an OCXO and hopefully auto switching like the Racal to use my external 10 MHz from the Rubidium. Not retired yet and have too many other hobbies so it's been a slow process to get this project to the front burner.
Racal Dana had the in being an old EU military supplier for decades, so they of course could get military certification, seeing as they had decades of being in the supply chain, and likely also had a lot of inside info on supply contacts as well.
What a privilege and a joy to peer into these "classics". These meters are as fabulous (can I use that word?) to me as anything modern. The labor & gray matter they represents are just astounding. Thank you for the ride along. I need to go back to your DANA video for context. Cheers
Option 003 was the 1.3 GHz input Options: 001 High Stability Time Base (TCXO) 003 Channel C, 1 GHz 004 Oven Oscillator I think option 003 is somewhat rare today.
As I'll clarify, HP confusingly describes the the TCXO as it 'provides increased temperature stability' over the factory default XO. However most generally, and AFAIK, a "High Stability Time Base" is usually assumed to be ovenized. AFAIK,TCXO technology cannot match an OCXO for frequency stability.Not only because, the temperature compensation in a TCXO responds to ambient, and the OCXO is normally held very precisely, and significantly above ambient temperature. For temperature stability, I would expect a TCXO to be about an order of magnitude better than an XO. And, an OCXO to be at least and order of magnitude better than a TCXO.
@@IMSAIGuy For 1992. R-D's best time-base option is 04E (High Stability Ovenized Oscillator) which is 10^-10. For a crystal base oscillator 10^-12? Is that a rubidium oscillator? R-D 1992 came with a rubidium oscillator?
Hello. I have such a meter. After measuring and disconnecting the signal, the meter displays it and does not reset. Does your meter behave in the same way? translates with google translator.
Hi! Concerning new equipment, how does one make or obtain a voltage reference that is super accurate? I have yet to hear you cover significantly accurate voltage standards. For example, how can I measure a "trusted" voltage and then calibrate all my volt meters? Is this a topic you would cover?
