# No PTT digirig Mobile
**URL:** https://forum.digirig.net/t/no-ptt-digirig-mobile/9851
**Category:** Uncategorized
**Tags:** icom-ic-706mk2g, icom-ic-718, troubleshoot-ptt
**Created:** [October 9, 2025, 9:04pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851 "2025-10-09T21:04:42Z")
**Posts on this page:** 17
**Page:** 1
### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 9, 2025, 9:04pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/1 "2025-10-09T21:04:42Z")
Hi all,
I have a digirig mobile set up with both Ic718 and ic706iig. I have cat control and audio input on wsjtx but have no PTT at all, it just goes red and both radios don’t transmit. I have tried this on windows , Mac and Linux. I have the drivers installed.
I have also bridged the cable as described in a troubleshooting video and the radio will transmit.
The digirig is brand new and the specific one for Icom. The cables are also from digirig but are not brand new.
Any thoughts on where to go from here?
Thanks , VK3LBB
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 9, 2025, 11:07pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/2 "2025-10-09T23:07:20Z")
What software and method do you use for keying up the radio?
Try WSJT-X with PTT set to RTS as discussed here:
[ ](https://www.youtube.com/watch?v=1EtrkyisCnc)
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 9, 2025, 11:20pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/3 "2025-10-09T23:20:32Z")
I’m using wsjt-X and I’ve tried all of the available options for Ptt, silly question but are the cat control and Ptt ports meant to both be set to the same when using the digirig and the silicone labs driver?
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 10, 2025, 12:04am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/4 "2025-10-10T00:04:51Z")
Are you using Digirig Mobile revision 1.6 or later?
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 10, 2025, 2:01am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/5 "2025-10-10T02:01:38Z")
1.11 I think, it’s the newest one
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 10, 2025, 9:57pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/6 "2025-10-10T21:57:24Z")
A small update, when I click tune on wsjtx the tone plays through my radios speaker but does not start tx. Not sure if this information helps at all?
I have also tried using serial tool to start transmission through rts and dtr but this also did not work.
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 13, 2025, 11:26pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/7 "2025-10-13T23:26:36Z")
Let’s double check the configuration. Please share the screenshots of the device manager showing Digirig’s COM port and WSJT-X configuration where PTT is configured.
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 14, 2025, 2:26am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/8 "2025-10-14T02:26:16Z")
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 14, 2025, 3:21am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/9 "2025-10-14T03:21:24Z")
Hmm, the config checks out. On the chance that this is some sort of regressive WSJT-X bug, can you try keying up the radio via VaraFM. It’s not suitable for operating HF rig, but will work for troubleshooting. Your config will look like this:
After that you can use “auto tune” feature under sound card to see if radio keys up.
EDIT: also, please share “about” page of the WSJT-X install that you use. I’ll try it as well.
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 14, 2025, 3:47am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/10 "2025-10-14T03:47:57Z")
Unfortunately the auto tune feature didn’t work, the sound is still being played through the radio itself (radios speaker) but not transmitting .
Wsjtx is version 2.7.0-win64
I’m not sure if it’s just coincidence but I have seen a few ic-718’s with the same issue pop up in recent times. Could it have something to do with the driver?
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 14, 2025, 10:27pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/11 "2025-10-14T22:27:09Z")
Thank you for the update. Yes, there are about three similar cases with the setup that is known to work before (IC-106/IC-718). I’m also not sure if coincidental, but I have at least one of the Digirigs back to me for retesting. I don’t have these radios, but the PTT switch works the same regardless of the transceiver model, so I’ll be able to use it with what I do have.
You can also contact via the form on the website to arrange an RMA if you wish.
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 14, 2025, 11:41pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/12 "2025-10-14T23:41:25Z")
No worries,
I might hold off and see how the testing goes on that digirig? Just in case it is the digirig itself (which I know is unlikely)
Thanks for your help and please let me know if there are any updates on this.
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 15, 2025, 9:15pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/13 "2025-10-15T21:15:08Z")
In similar case I just resolved, the R2 lead of the audio socket (PTT line) got dethatched from the pad on PCB. The CI-V configured units came from the same panel so it is possible that other units configured about the same time may have a weaker solder joint too. If you want to diagnose this scenario at home, you can remove the PCB from the enclosure and test PTT while pushing the PTT lead of the audio connector (closest to the edge of the PCB) against the pad.
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 15, 2025, 9:29pm UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/14 "2025-10-15T21:29:16Z")
Perfect, I will test this later. Thanks for the update.
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### Author:  [@ko4fgw](https://forum.digirig.net/u/ko4fgw)
#### Post date: [October 16, 2025, 12:58am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/15 "2025-10-16T00:58:58Z")
I just took mine apart and found that the last pad doesn’t appear to be soldered to the board. I don’t have a tip fine enough to get inbetween the to ports and have requested an RMA.
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 16, 2025, 1:27am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/16 "2025-10-16T01:27:06Z")
RR, I’ll take care of it.
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### Author:  [@Lochie\_Brody](https://forum.digirig.net/u/Lochie_Brody)
#### Post date: [October 27, 2025, 5:06am UTC](https://forum.digirig.net/t/no-ptt-digirig-mobile/9851/17 "2025-10-27T05:06:27Z")
Hi Dennis,
just following up on this, i finally got a cable for my baofeng UV5R to use with this same digirig that i have been having issues with. I tried what you suggested here and this has still resulted in the same issue. No PTT through my baofeng, while trying this i have accidentally pulled the audio port off the PCB and don’t have the correct tools to put it back in place. is it possible to send the digirig back to you for testing as i believe there could be a potential fault in this digirig.