Icom AH4 Support???

[Ken]

I have been combing thru any I/O board info that I can find. Has anyone gotten the AH4 support to work? I see connecting information in the amplifier sections using jpgs but nothing in the area where the AH4 files are. I see pictures in the section but no connections just unmodified board pics. Where are the signals key and start on the board? They need to be connected to the tuner via the DB9. 

[Steve Haynal]

Hi,

I use a AH-4 and AH-705 on my 3 HL2 setups. I use the non-I/O board method which requires some installation and wiring of the rear endplate on the HL2.

 https://github.com/softerhardware/Hermes-Lite2/tree/master/hardware/enclosure/endcaps/kf7o/hl2_40b#atu

73,

Steve

kf7o

[Ken]

Thanks Steve,

I was told that the I/O board was the way to go and to avoid the companion board. So far I have not been able to find the information on the AH4 using the I/O board. I have been pointed to the readme file of the I/O board  but I cannot find the procedure to configure it there. Looks like I will install the Companion board.  BTW, The radio is a lot of fun but definitely not plug and play,,lol

[Heath Petty]

I came across this while searching for a solution to your issue: https://github.com/jimahlstrom/HL2IOBoard/tree/main/zl2te_arduino  It has a library for the AH-4 tuner. It also has documentation on how to build the firmware and install it. The issue is that I didn't see any instructions specific to the AH-4 tuner. I don't have an icom tuner, so any help I could offer would be limited, and others might be in the same boat. 

You are right, the HL2 is not a plug and play radio, but it is very versatile. 

-Heath