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medicrene · 01-05-2012, 12:38

Quote:

Originally Posted by S/V Illusion

The tuner control cable connects to a companion mating controller (AH2) which I mounted on the side of the 735. The AH2 then connects to the 735. If the controller is missing, you might be able to replicate the controller but I don't have the schematic to refer.

I'll talk to Rick, N9PMR, who might need a short history lesson as I suspect this equipment is before his time.

"The tuner control cable (from AT-120 or from AH2?) connects to a companion mating controller (is this part of the AH2, the IC-735 or is this a special part), and then connects to the 735 (where does it connect?"

Any chance you can post a photo of this? If I knew what parts to buy and connect, I could probably make this work.

Sorry for all the questions, but I am new to radios..but enjoy learning.

The Witchdoctor

**btrayfors** · 01-05-2012, 12:51

Quote:

Originally Posted by medicrene

"The tuner control cable (from AT-120 or from AH2?) connects to a companion mating controller (is this part of the AH2, the IC-735 or is this a special part), and then connects to the 735 (where does it connect?"

Any chance you can post a photo of this? If I knew what parts to buy and connect, I could probably make this work.

Sorry for all the questions, but I am new to radios..but enjoy learning.

The Witchdoctor

Google is your friend. Just Google "Icom AH2"....loads of references, manuals, pix.

You can't just buy parts and make it work if you're new to radio. An experienced radio tech could do it, but it's highly unlikely you could.

Your choices are to:

1. find a used AH2 and use the existing IC735/AT120; or

2. buy a new tuner like the SG-230 (by the way, it will tune a wet noodle...the 50' is crap); or

3. sell the IC735 and buy another Icom radio which will work directly with the AT120 (M700, M710, M710RT, M700Pro, M800, M600, M802).

Bill

**senormechanico** · 01-05-2012, 12:53

My apologies for being sarcastic.
I also had the AH-2. The radio was flush mounted at the nav table and the AH-2 was as well.
That was at least 17 years ago.

S/V Illusion · 01-05-2012, 15:53

Quote:

Originally Posted by medicrene

"The tuner control cable (from AT-120 or from AH2?) connects to a companion mating controller (is this part of the AH2, the IC-735 or is this a special part), and then connects to the 735 (where does it connect?"

Any chance you can post a photo of this? If I knew what parts to buy and connect, I could probably make this work.

Sorry for all the questions, but I am new to radios..but enjoy learning.

The Witchdoctor

The tuner (AT120) cable connects to the AH2 controller which connects to the 735. Everything is in pieces now so a pic wouldn't provide any clearer a reference for you.

Maybe this - the 735 Rf output goes through the tuner to the antenna. Independent of that, the tuner cable 4 conductor cable goes to the AH2 which is controlled via a short 12V power cable to the 735.

Moot points if you can't find the AH2. If it helps, I'd be willing to sell the AH2 but only in combination with my tuner as it is useless to anyone separately (as you know).