Well, I have a few more clues.
1. The frequency range seems to be 100MHz - 147MHz.
2. I can transmit at 147.000MHz. That is the only frequency I am able to transmit at.
3. I opened it up but was confused about what was the jumpers. I found this:http://www.kb2ljj.com/data/yaesu/ft-415.txt
So I'm going to go back and take one more look. Like the link you provided they say:
ENTAR THE FOLLOWING BAND LIMITS.
CH. 1 120.000 Press [VFO] Lower Rx
2 174.000 Press [VFO] Upper Rx
3 135.000 Press [VFO] Lower Tx
4 174.000 Press [VFO] Upper Tx
I don't know what they mean about Press [VFO]. When I do that it just switches between the A and B VFO's. I've been trying to program those numbers into the memory channels but I'm not sure that is what they mean?