CI-V interface?

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ka3jjz

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I don't know if anyone is looking for one of these; but I just came across this and thought I might throw it out there if anyone needed it...


Mike
 

majoco

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Many years ago, about 2002, I bought a Yaesu VX-2, a tiny 2m handheld. I found a neat programme called "VX-2 Commander" by Jim Mitchell which required an interface from a computer Com port to a four-conductor jack into the radio. A bit of hunting and I found a constructional article on how to build one and it worked very well - the programme and the interface. A couple of years ago I found an Icom R7000 on our local web auction and again found a programme to talk to it - also called "Commander" but author unknown. A quick bit of soldering fitted a 2 conductor plug for the R7000 and would you beleive - the same interface for the VX-2 works for the R7000! ...and
-yes, it does work through a USB to Comport adapter! Photos and the original pdf attached.

DSC_2244 crop sml.jpg
 

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ka3jjz

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Martin, I suspect this is the program you used?


Mike
 

EricCottrell

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Hello,

I looked up the schematic of the Icom CT-17 (it is in the manual). It is just a MAX232 with a power supply. The TTL TX and RX pins are connected together and go through a simple low-pass filter to the tip connection of the four mono 3.5mm jacks.

73 Eric
 

krokus

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Hello,

I looked up the schematic of the Icom CT-17 (it is in the manual). It is just a MAX232 with a power supply. The TTL TX and RX pins are connected together and go through a simple low-pass filter to the tip connection of the four mono 3.5mm jacks.

73 Eric
(old post but just came across it and remembered I had the CT-17 CV-I)
Running Icom IC-R7000 with added Voice Synthesizer board (picked up decades ago from a local Surplus Store and fixed it).

View attachment 98439
View attachment 98440
Those appear to be 3.5mm TRS jacks, with the tips isolated. (Unless the leads are laid out differently than I am used to.)
 
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