Thank you Eric,

I see.. Due to the EPROM, channel selection would be quite limited, and
I no longer have a burner or EPROMs. I'd be making a convenient marine
rig into an inconvenient ham rig. If that's how it works, I don't want
to ask you to go to that much trouble.

-Living in Dallas, there are many, many HF frequencies in use by locals,
and it's a reality to have to nudge the dial often. Not sure anyone
around here would want it for their boat.. all we got is lakes!

best regards,
Patrick



wrote:
On Feb 22, 11:14 pm, patrick jankowiak wrote:
1. How are the frequencies programmed in? I see no crystals or diode
matrix for programming the channels as I would expect in an older set.

It uses eprom programming. It's been a while since Iv'e worked on
one of these but I have a service manual and have reprogrammed these
radio's. As I recall, it's kind of weird how it's done, but you'll
need a basic eprom programmer. I can dig out my notes and give you the
details on programming. Don't remember off the top of my head which
chip is used (maybe 2716?). Will have to check my notes at work next
week. It's already an "open" radio but you would have to program in
specific ham freq's that you want to use. Not a good ham radio for
this and other reason's. The licensing rule applying to working on
marine radio's only applies to things that would affect the
transmitted signal. If you only want to use it on the ham bands then
it doesn't matter.

Eric