Hello!


I would like to use a Radiomaster TX16S transmitter with an ImmersionRC UHF external transmitter (not a JR module), but I can't find a pinout for the trainer port anywhere. Nowhere is it even stated whether a 3 or 4 pin connector is required on this port. As I can see from the pictures posted on his page by Oscar Liang I assume the jack is 4 pin. Can anyone help me?
Regards, Miloš

The port label DSC is the trainer port. You will need to get a JR 6 pin to 3.5mm plug. I can't tell you which cable will work. You might have to do some more homework and contact Immersion and Radiomaster. I am not sure the generic simulator cable off Banggood or ebay will work.

(09-Nov-2020, 07:38 PM)voodoo614 Wrote: The port label DSC is the trainer port. You will need to get a JR 6 pin to 3.5mm plug. I can't tell you which cable will work. You might have to do some more homework and contact Immersion and Radiomaster. I am not sure the generic simulator cable off Banggood or ebay will work.

Hello!

Thank you for the answer Voodoo but somehow it doesn't work. I have tried many things, but there is no PPM signal on any pin from DCS port. Probably something else needs to be arranged in the transmitter. I solved my issue by pulling the PPM signal and ground right from the pins where the JR module is inserted. So far, so good. Thanks, Miloš

To make the DSC output PPM, you want to go to the Trainer section in the model setup, and change it to "slave".

(21-Nov-2020, 07:00 AM)Miloš Wrote: Hello!

Thank you for the answer Voodoo but somehow it doesn't work. I have tried many things, but there is no PPM signal on any pin from DCS port. Probably something else needs to be arranged in the transmitter. I solved my issue by pulling the PPM signal and ground right from the pins where the JR module is inserted. So far, so good. Thanks, Miloš

Is the pins on the tx16s module bay same as a JR radio, I'm also going to use my old uhf tx from my old radio with radiomaster.

(10-Jan-2021, 01:25 AM)Roby Wrote: Is the pins on the tx16s module bay same as a JR radio, I'm also going to use my old uhf tx from my old radio with radiomaster.

Yes, that is the point of a JR module bay. It has a standard pinout that all JR compliant modules use. So as long as the firmware on the transmitter (in this case OpenTX) supports the JR module that you want to use then it can be used in the transmitter's JR module bay.

(21-Nov-2020, 07:00 AM)Miloš Wrote: Hello!

Thank you for the answer Voodoo but somehow it doesn't work. I have tried many things, but there is no PPM signal on any pin from DCS port. Probably something else needs to be arranged in the transmitter. I solved my issue by pulling the PPM signal and ground right from the pins where the JR module is inserted. So far, so good. Thanks, Miloš

Hi Milos.

Yes there is a PPM signal. 
However you need a 4 pin jack to be able to see or use the PPM signal.
You need as well to declare the model to be a "TRAINER SLAVE"

I had the same problem to be able to use PHOENIX rc 6 flight simulator.

Beware that some audio 3.5mm jack are too short, hence won't work either!

Note: Standard 3.5mm 3 pin jack WILL NOT WORK!

Using an oscilloscope to see which connection on the four pin Jack avoid try and error.
if wrong connection is chosen, a vaguely square distorted PPM signal appear due to capacitive coupling.

So ground is the outer most and PPM two contacts after.

Hope this help.

Henri.

As you can see inside the Tx16S it is a 4 pin socket.

Needed a 4 pin 3.5 millimetres jack to make it work. (See photos..)

If you run Phoenix RC 5 or 6.0i you need to set the model as {Trainer slave} to get the PPM out working.

Hope this help.

Cheers.

Henri


           

Radiomaster TX16S

From Radiomaster support:

A. GND

B. Insert Detection

C. PPM

D. Null (not used)

We suggest using a MONO 3.5mm plug for best results (JR/Spectrum style Trainer Cable).

Hi actually henrik04 is probably right. I bought and tried the cable suggested by Radiomaster but it does not work. FC68122C cable is probably the best solution. The problem is to find one !