Hello Peg and others,
Yes, I was incorrect about using the 9.8304 MHz crystal - I had overlooked that the MFD multiplying factor must be an even number.
The following is a list of possible crystal frequencies for FEE mode, and the setup required. In each case, the RFD division factor is 1.
Crystal MFD Bus freq.
MHz factor MHz
2.4576 12 14.7456
3.6864 10 18.4320
4.9152 6 14.7456
7.3728 4 14.7456
True, only the 3.6864MHz crystal produces the highest bus frequency. However, since the reduction for the other crystal frequencies is only 20 percent, these should also work for all but the most stringent applications. Perhaps it also depends on the crystals available from the "junk box".
Regards,
Mac