Yes, I did :-) The FT817 block diagram shows two oscillators in the chain a master at 22.625 and 'another' at 22.7785 - so that idea gets knocked out straightaway. They done it on the cheap :-(
Dear Andy, Roger, LF Group, In my transverter design, I have added a "ref out" socket to the IC718 driving transceiver to make the 32MHz reference oscillator available externally. This is divided to
Just an example: The master oscillator in the IC746 is at 30MHz, so transverting from 30.5MHz would be an option in this case. But one could just as easily divide this by 2 first and transvert fro
Thanks all the comments. Gary - G4WGT. 2010/1/13 James Moritz <[email protected]> Dear LF Group, ...The perils of having a 50MHz -> 500kHz transverter! 3.5MHz would be a better IF frequenc
If you are able to derive the transverter LO from the transverter's master oscillator do so. That way errors will be cancelled out and any frequency drift will be now be in direct proportion to the
over the past 12 hours I had 51 spots of LA3EQ, frequency ranging from 503848 to 503885 73, Rik Hi, Someone transmitting WSPR has a severe drift, no decodes on this signal. My guess is LA3EQ - has be
Hi guys, Yes it was LA3EQ, started getting decodes as the drift flattened out. 50 MHz to 500 kHz is a long way to transvert, I use 4 MHz & as far as I am aware no drift problems after half an hour o
Dear LF Group, ...The perils of having a 50MHz -> 500kHz transverter! 3.5MHz would be a better IF frequency from the drift point of view. Cheers, Jim Moritz 73 de M0BMU over the past 12 hours I had 5
