# Cables for Elecraft K3
**URL:** https://forum.digirig.net/t/cables-for-elecraft-k3/1881
**Category:** Uncategorized
**Tags:** elecraft-k3
**Created:** [June 24, 2023, 7:02pm UTC](https://forum.digirig.net/t/cables-for-elecraft-k3/1881 "2023-06-24T19:02:39Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [June 24, 2023, 7:02pm UTC](https://forum.digirig.net/t/cables-for-elecraft-k3/1881/1 "2023-06-24T19:02:40Z")
**CAT control**
… is an easy part with the standard DB9 RS-232 port.
Kudos to Elecraft for actually resolving the ambiguity of the serial signal labels instead of just telling TX/RX. From below it appears that we’ll need to use a crossover cable pinout (null modem). If ordering [store cable](https://digirig.net/product/rs232-cord-for-digirig-mobile/), make sure to specify in order note that you need a null modem variant. The default for that listing is a straight cable used by Kenwoods.
Digirig will need to be configured for RS-232 levels. CAT control is optional. The cable below alone will suffice for the basic digital modes operation.
**Audio/PTT**
15 pin ACC connector looking like VGA port (it’s not) doesn’t offer any audio. For that purpose we’ll need to build a three-way splitter cable:
3.5mm TRS LINE IN tip → Digirig ring 1 (RIG\_AFIN)
3.5mm TRS LINE IN sleeve → Digirig sleeve (GND)
3.5mm TRS LINE OUT tip → Digirig tip (RIG\_AFOUT)
3.5mm TRS LINE OUT sleeve → Digirig sleeve (GND)
RCA PTT IN center → Digirig ring 2 (PTT)
RCA PTT IN shell → Digirig sleeve (GND)
Please report your results if you attempted this build.
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### Author:  [@K0TX](https://forum.digirig.net/u/K0TX)
#### Post date: [October 29, 2023, 2:46am UTC](https://forum.digirig.net/t/cables-for-elecraft-k3/1881/2 "2023-10-29T02:46:36Z")
This cable is now available in store:
> **[Elecraft K3 cords for Digirig Mobile – digirig](https://digirig.net/product/elecraft-k3-cords-for-digirig-mobile/)**