I assume my GPS disciplined over controlled crystal oscillator is going to be much the same as most of those. Short term .1milli Hz. Without GPS, yes a rubidiu

I assume my GPS disciplined over controlled crystal oscillator is going to be much the same as most of those. Short term .1milli Hz. Without GPS, yes a rubidium oscillator would be fun to have and the phase noise is may be better than the TCXO disciplined oscillator, but the system I have with the LEA-M8T with a good external antenna and used in the 'base station surveyed in' mode is more stable. I've been keeping an eye on ebay for old one at a reasonable price. They do wear out so it's a risky buy. The black burst stuff is funny. I used to work in TV as a kid. The plate on my car was PAL-443