On 30 May 2016 17:01, "Richard (Rick) Karlquist" <rich...@karlquist.com> wrote: > > On 5/30/2016 4:06 AM, Dr. David Kirkby (Kirkby Microwave Ltd) wrote:
>> I'm wondering what's the best way to generate 116 MHz with very low phase >> noise. Phase noise at < 20 kHz offset is particularly important, but 200 > > The "best" way is clearly to use a 116 MHz 5th overtone crystal > oscillator, which can be locked to 10 MHz with no difficulty. > I designed hundreds of these sorts of things 40 years ago when > I worked for Zeta Labs. Please excuse my ignorance, but how would one lock a 116 MHz 5th overtone crystal oscillator to 10 MHz with no difficulty? Do you have a circuit you share that would give low phase noise, and if so how low? >From what I have read here before, amplifiers degrade the phase noise if driven to near the 1 dB compression point. So would the final amplifier need to have a 1dB compression point of 33, 36, 40 dBm? My next problem would be measuring the phase noise, but that's a different topic for another day. Dave. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.