Hi If you are trying to do microwave work, phase noise is going to be an issue no matter how you do it. A lot of the design effort always goes into a low noise oscillator chain in that sort of gear. For HF gear, phase noise may not be quite as big an issue. A lot of rigs pretty much ignore the phase noise of their reference.
If your radios are not already set up to use a 10 MHz reference, you will need to do some frequency conversion to feed them what they want / need. If that's the case, clean up the phase noise in the conversion process. Normally it's as basic as a crystal oscillator locked up with a narrow band PLL. No need for any fancy OCXO or TCXO, just a home made voltage tunable XO. It's not really even a VCXO, since the tune range can be very narrow. Lots of options… Bob On Jun 2, 2012, at 5:57 PM, Chris Wilson wrote: > > > I am looking to get a frequency standard for my amateur radio shack, > initially for verifying test gear readings, but later as a standard > to lock receiver and transmitter oscillators to. I was going to buy > a GPS frequency standard but a friend warned me these may have noise > issues when I come to use it with an oscillator in RX / TX > applications. It's not something I had considered, so what's the > score here please? Should I not buy a GPS standard? Thanks. Any > links to known safe suitable purchase sources from personal > experience welcome, either here or by PM or e-mail. I am in the UK. > > -- > Best regards, > Chris Wilson mailto:[email protected] > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
