QYT KT-8900 Go to product viewer dialog for this item. programming cable utilizes a standard 3.5mm TRS (Tip-Ring-Sleeve) or TRRS (Tip-Ring-Ring-Sleeve) audio jack interface, though only three connections are required for data transfer. The pinout typically follows the standard found in many similar Chinese mobile radios. Programming Cable Pinout (3.5mm Jack)
To program and configure the KT8900, you will need to download and install the KT8900 programming software. The software is available from various online sources and is compatible with Windows operating systems. qyt kt8900 programming cable pinout top
CHIRP: This radio is widely supported by CHIRP, an open-source programming tool. When using CHIRP, select QYT as the vendor and KT8900 (or the corresponding 'D' version) as the model. QYT KT-8900 Go to product viewer dialog for this item
If you connect TX→TX and RX→RX, you will get nothing but timeouts. Programming Cable Pinout (3
Pinout summary (tape on your cable):
[1] GND [2] TX [3] RX [6] +5V
Locking tab up. Pin 1 left.
If you are building your own cable using a USB-to-TTL (UART) module, such as the CP2102, wire it as follows: 3.5mm Plug Part UART Module Pin Tip TXD (Transmit) Ring RXD (Receive) Sleeve GND (Ground)
When viewing the 3.5mm connector from the "top" (the end opposite the cable entry), the pinout assignments are as follows: Tip: RX (Data from Computer to Radio) Ring 1: TX (Data from Radio to Computer) Sleeve: GND (Ground) Key Connection Details
