Like many mobile radios Alinco DX-SR8 doesn’t provide audio output on the mic connector so we’ll have to go with a split cable. You can use an existing split cable (1, 2) as a starting point and replace the mic connector.
We’ll need confirmation on the exact model of the aviation connector needed, let’s call it GX??-8F.
The cable pinout as follows:
Mic
GX??-8F pin 1 (MIC) → 3.5mm TRRS ring 1 (RIG_AFIN)
GX??-8F pin 2 (PTT) → 3.5mm TRRS ring 2 (PTT)
GX??-8F pin 8 (GND) → 3.5mm TRRS sleeve (GND)
Hey i have created a cable similar to this however im also trying to use the CAT control feature which is proving to be a challenge. Any ideas on how this can be done? I noticed that the speaker port according to the manual is used to port over settings and whatnot over to a new radio and thus this is what ive been trying to use. I did manage to get it working if only for a short while
The manual indeed mentions PC controls, but there are no further details anywhere in the document.
Computer control
The DX-SR8 can be controlled by a personal computer through the serial interface.
Settings of frequency, mode, power, and memory channel can be controlled.
(Optional PC interface cable required)
This video shows that the serial port is available in the cable from the body to head unit and also mentions serial port settings. No word on that being available on the mic connector:
With audio also on RJ-45 is probably possible to use Digirig as the complete replacement of the head unit while operating digital or use both control options with a “Y” splitter or RJ-45. We can look into pinouts if this is something you want to attempt.
Another post where the cable for this radio is discussed (audio/PTT only).
Looks like the computer contr is done through the speaker jack.
(19) SPEAKER jack [SP] For connecting an external speaker. Takes 8 to 16 ohm impedance
speakers.
Connect optional ERW-4C or ERW-7 cable for PC-interface.
(20) Microp…
I just ordered the ERW-7 so once my digirig and cable arrive i will test and let you know.
