# Kenwood TM-D710 Serial Programing

**URL:** https://forum.digirig.net/t/kenwood-tm-d710-serial-programing/10393
**Category:** Uncategorized
**Tags:** serial-rs232
**Created:** [March 17, 2026, 10:57pm UTC](https://forum.digirig.net/t/kenwood-tm-d710-serial-programing/10393 "2026-03-17T22:57:13Z")
**Posts on this page:** 1
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### Author: ![AG7GN](https://forum.digirig.net/letter_avatar_proxy/v4/letter/a/9dc877/32.png) [@AG7GN](https://forum.digirig.net/u/AG7GN)
#### Post date: [March 24, 2026, 5:50pm UTC](https://forum.digirig.net/t/kenwood-tm-d710-serial-programing/10393/9 "2026-03-24T17:50:54Z")

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It is possible to modify a Digirig Mobile so that it uses GPIO to trigger PTT (like the Digirig Lite) instead of RTS while retaining the CAT capability (including PTT via CAT). I’ve done [this mod](https://forum.digirig.net/t/uz7ho-soundmodem-and-ext-ptt/2941/7) on a couple of Digirig Mobiles and it works well.

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