BTECH APRS-K1PRO

[Greg P (gparach)]

Has anyone successfully configured and used the BTECH's APRS-K1PRO cable with the DIGIPI? The cable assembly uses AFSK and has a USB-C and a Kenwood K style radio plug.

[Stephan Forth]

Hi

As far as I know this is just a audio cable. No PTT circuit and no collision control. So you have to use VOX on your radio.

But I might be wrong. Used that cable long time ago with APRSdroid on my phone.

73, Stephan, DF6PA

Greg P (gparach) <gpa...@gmail.com> schrieb am Mo., 16. Feb. 2026, 23:35:

Has anyone successfully configured and used the BTECH's APRS-K1PRO cable with the DIGIPI? The cable assembly uses AFSK and has a USB-C and a Kenwood K style radio plug.

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[Don Rolph]

I have tested two of these.

\I wasn unable to set the PTT adjustment properly to get a stable PTT signal.

Btech was unable to assist.

Based on my efforts to date, these devices do not work as advertised.

Which is a shame:  they would make a really nifty solution to the smartphone APRS configuration.

On Mon, Feb 16, 2026 at 5:35 PM Greg P (gparach) <gpa...@gmail.com> wrote:

Has anyone successfully configured and used the BTECH's APRS-K1PRO cable with the DIGIPI? The cable assembly uses AFSK and has a USB-C and a Kenwood K style radio plug.

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73,

AB1PH

Don Rolph