The Maxon 4010 is crystal controlled. The transmit is your
frequency divided by 9. The receive is the frequency minus the if
(10.7 MHz) and then divide by 9.
Try to get the crystals as close to the frequency required. But they
can be shifted a bit with the provided trim caps next to the crystal
For more information, refer to the 3010 document on this site. The
tone board should be the same.
Let me know if there are any issues.
Joe Loucka AG4QC