Qyt Kt8900 Programming Cable Pinout Top

While the physical port looks like a standard headphone jack, it carries serial TTL data. To program this radio, you only need three active connections.

Solder a wire from the of the 3.5 mm plug to the GND pin on the USB-to-TTL board. qyt kt8900 programming cable pinout top

Some versions, particularly the KT-8900D, may feature a "DATA" jack on the rear panel. QYT KT-8900 Programming Cable Pinout While the physical port looks like a standard

Connect the pin of the module to the Ring (TX) of the plug. particularly the KT-8900D

Most programming cables for this radio are comprised of a USB-to-Serial adapter (often using the Prolific PL2303 or FTDI chipset) and a 3.5mm TRRS (Tip-Ring-Ring-Sleeve) or TRS style plug.