Hi Dave,
Use a diode doubler, follwed by a 20MHz filter and a MMIC /attenuator combination to allow you to set the level. If you need more detail, e-mail me directly and I'll provide. 73, Dave ________________________________ From: Dr. David Kirkby <[email protected]> To: Discussion of precise time and frequency measurement <[email protected]> Sent: Wednesday, 25 May, 2011 8:52:12 Subject: [time-nuts] What's the best way to double 10 MHz to 20 MHz ? I'm still trying to find a solution to replacing a standard crystal in a Kenwood TS-940S transceiver with something more accurate. The transceiver uses a 20 MHz crystal oscillator, though a 20 MHz TCXO was available as an option, though few rigs appear to be fitted with it. If one was to make a 20 MHz reference, what's the best way to get a 20 MHz sine wave (at least 0 dBm) from a 10 MHz TCXO or OCXO? The 10 MHz devices seem much more popular than 20 MHz ones, so I can probably pick a higher spec 10 MHz device more easily. Dave -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? _______________________________________________ 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.
