# PTT Again (dire wolf + digirig + APRS-K1 cable + UV5R) on a Mac

**URL:** https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946
**Category:** Uncategorized
**Tags:** troubleshoot-ptt
**Created:** [July 7, 2024, 9:01pm UTC](https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946 "2024-07-07T21:01:09Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![dmitrym](https://forum.digirig.net/letter_avatar_proxy/v4/letter/d/97f17d/32.png) [@dmitrym](https://forum.digirig.net/u/dmitrym)
#### Post date: [July 7, 2024, 9:01pm UTC](https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946/1 "2024-07-07T21:01:09Z")

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Hey folks,

Trying to get my PTT going with digirig and the Baofeng UV5R, but no go.

The radio is not being keyed (I see no transmission light).

I hear digirig generating tones when dire wolf is running via my headphones.

The receive side is working fine, I see APRS messages in Direwolf console.

Questions:

1. Can I write directly to the tty device on Mac to key the radio? Maybe I have dire wolf misconfigured. I see both `/dev/tty.SLAB_USBtoUART` and `/dev/tty.usbserial-1110`. What’s the right one?

2. I dont have a multimeter handy, but inspecting the connector on the cable I found a scorch mark: [https://imgur.com/a/cuIjia6](https://imgur.com/a/cuIjia6). Should I be concerned?

Is there anything else I might be missing? Drivers?

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### Author: ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [July 7, 2024, 9:09pm UTC](https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946/2 "2024-07-07T21:09:18Z")

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The issue may be related to the fact that the cable in your picture doesn’t appear to be a Digirig cable:

 ![image](https://forum.digirig.net/uploads/default/original/2X/8/865f6b78ad96027046364fbd7df2af901be412c3.jpeg)

Here’s how TRRS connectors in Digirig cables look like:

 ![image](https://forum.digirig.net/uploads/default/original/2X/8/8a70d550506c11c33ede7fe2f6296e40ba0d86f4.jpeg)

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### Author: ![dmitrym](https://forum.digirig.net/letter_avatar_proxy/v4/letter/d/97f17d/32.png) [@dmitrym](https://forum.digirig.net/u/dmitrym)
#### Post date: [July 7, 2024, 10:20pm UTC](https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946/3 "2024-07-07T22:20:14Z")

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I followed a guide I found online ([link](https://brandonb.ca/raspberry-pi-aprs-tracker)) and it never occurred to me to verify the cable suggested 🤦‍♂️

Based on [this thread](https://forum.digirig.net/t/btech-aprs-k1-audio-cable/2621) it seems to be compatible? Enabling VOX on my UV5R did not work either.

Anyway, is this the cable you would recommend: [Baofeng cables kit for Digirig Mobile – digirig](https://digirig.net/product/baofeng-cords-kit-for-digirig-mobile/) ?

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### Author: ![K0TX](https://forum.digirig.net/user_avatar/forum.digirig.net/k0tx/32/3_2.png) [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [July 7, 2024, 10:48pm UTC](https://forum.digirig.net/t/ptt-again-dire-wolf-digirig-aprs-k1-cable-uv5r-on-a-mac/3946/4 "2024-07-07T22:48:54Z")

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Yes, for data modes please use the black cable from this kit.