Digirig Interface Kit for Elecraft KX2/KX3

Digital modes interface for amateur radio combining audio codec, serial CAT interface and PTT control.

Key Features

• Combines audio codec, serial CAT interface and PTT switch
• Supports full featured CAT interface: PTT, bands, tuning etc. (not just VOX based PTT)
• Uses a single USB connection to computer minimizing the cables mess
• Serial computer aided transceiver (CAT) port can be configured for logic levels, RS-232, CI-V or TX-500 (learn more) (external link)
• Works with all major OS flavors: Windows, MacOS and Linux
• Permanently available independently from CAT port an open-collector PTT switch controlled by RTS signal of the COM port to interface HTs and mobile radios
• Auxiliary connection points to CM108 codec – for simple Allstar homebrew node builds
• Uses widely supported CP2102 serial interface and CM108 audio codec (generic audio device – no driver necessary)
• Small rugged aluminum enclosure ideal for mobile operations
• Interfaces the transceiver using widely available 3.5mm jacks (TRRS) for simple homebrew cable builds
• Isolation can be easily added using inexpensive USB isolator dongle

Notes regarding the interface configuration (external link):

• Audio + PTT are always available independently from serial CAT and they work for minimum required digital modes configuration with any radio
• CAT configuration is done with solder jumpers and can not be changed operationally
• Check the transceiver cables listing for your radio. The description will have CAT configuration requirements
• Learn more about CAT configurations here (external link)

This particular unit is compatible with the Elecraft KX2 and KX3 transceivers.