KD5ZAM. I got my ticket pretty recently, still tech class.

mrmexico wrote:

Can you give more detailed instructions on tuning?


mrmexico wrote:

I have an Icom IC-4AT, but no manual for it. I can set the PL tones,
but am having difficulty with other aspects of operation, such as
tuning. Anyone have any hints for me?


MrMexico-

You may have missed the question about IC-4AT vs IC-04AT. They are two
different radios.

I have the older IC-4AT. It did NOT come with PL capability. It was necessary
to sandwich a tiny PL tone generator board between two larger boards in the
radio, and the tone is permanently set by soldered jumpers. It can't be
adjusted without a major disassembly and re-programming the jumpers.

Setting frequency and offset is easy on the IC-4AT, as Mark indicated. I have
never used the IC-04AT, but recall it is quite a bit more sophisticated. For
either radio, "tuning" might require a service manual if yours is off
frequency.

A web site that has quite a bit of information including some downloadable
manuals, is http://www.mods.dk/ which I think is in Germany.

73, Fred, K4DII