The QYT KT-8900 utilizes a standard audio-style jack for its data connection, located on the front panel microphone port or via the speaker/programming port depending on the specific hardware revision. Most programming cables interface directly through the 3.5mm data port. 📌 QYT KT-8900 Cable Pinout Configuration
To build a rugged, reliable programming cable, assemble the following materials: qyt kt8900 programming cable pinout top
Early QYT KT8900 units (pre-2017) used a different pinout: Pin 2 was RX and Pin 3 was TX. Later revisions standardized to the pinout above (Pin 2 = TX). If you have an older radio, you may need to try the : The QYT KT-8900 utilizes a standard audio-style jack