IC-730 and GX-16 cable

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I moved this topic started by @ZL1CJB

Alinco DX-70 Cable

I have an old Icom IC-730. Has anyone made a cable from the GX16-8F microphone connection to Digirig? Not sure if the pin config for the ALinco is the same? Have a service manual but it does not show the pin schematic. I only require PTT, mic and audio out, not serial. Have only a digirig lite so a single 3,5mm jack for ptt, mic, spkr is all that is required. Using a standard Baofeng cables kit for Digirig Mobile on my Quansheng UBK-5 with Winlink via VaraFM and works well on VHF/UHF. Now tryin…

to a new topic.

73 Constrainted

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The GX16 cable in the Digirig store is:

Kenwood, Alinco GX16 Mic Cable for Digirig Mobile – digirig

Is that a good starting point?

73 Constrainted

[Constrainted]

@Alinco DX-70 Cable

Not sure if the pin config for the ALinco is the same?

It looks like the Icom IC-730 is listed in this post by Denis @K0TX

Alinco DX-70 Cable

At this time there is no pre-made cable for Alinco DX-70, but if there is enough interest I’ll add it to the repertoire. Please signup to email updates on the homepage to receive notifications about new items added to store. I found this pinout for the mic connector (pins view side on the radio’s male connector or solder view side on the cable’s female connector). From the looks of it appears to be GX16-8F [Alicno Wiring Diagram] Based on it, Digirig audio cable will look like this: GX16-8F …

has same connection, different pinout than the Kenwood, Alinco, Elecraft, etc.

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[K0TX]

According to this resource, the mic pinout for IC-730 looks like this:

This doesn’t appear to match the two types of the GX16-8 cable pinouts currently available in Digirig store.

If you are interested in building a homebrew cable the pinout will be:

GX16 pin 1 (MIC) → 3.5mm TRRS ring1 (RIG_AFIN)
GX16 pin 5 (MIC) → 3.5mm TRRS ring2 (RIG_PTT)
GX16 pin 6 (EARTH) → 3.5mm TRRS sleeve (GND)

Either:
GX16 pin 8 (Ext Speaker) → 3.5mm TRRS tip (RIG_AFOUT)
or
1/4" TRS tip (PHONES) → 3.5mm TRRS tip (RIG_AFOUT)

[ZL1CJB]

Thanks for that KOTX. I notice that the Icom Microphone has a pre-amp in it. Do you think there will be enough output out of the Digirig to drive the audio? I’ll make a up lead and give it a try anyhow.

[K0TX]

There’s plenty of range when it comes to Digirig’s output levels. I don’t recall a case when it was insufficient so chances are good it will work with your radio as well.

[webmonkey]

you can use the ACC port in the back.
you would have to build your own cable for it as it uses a molex ‘block’.

i built a molex to 6 pin din female.
this gave the ic-730 a standard packet jack to work with.

good luck
kb0wlf