Qyt Kt8900 Programming Cable Pinout Top

_ / \ | Tip (RXD) | | | Ring 1 (TXD) |---| | Ring 2 (Not Used / VCC Varies) | | | Sleeve (GND) |---| | | |---| | | \___/ Use code with caution.

Select the correct COM port and baud rate ( 1920019200 are common for QYT).

that connects to the "DATA" port on the back of the radio. Unlike many handheld radios that use dual-pin connectors, this mobile rig relies on a simple three-wire serial interface for data transfer. 🛠️ Programming Cable Pinout (3.5mm Plug) qyt kt8900 programming cable pinout top

Note: Some variant cables use a 4-contact TRRS plug, but only the first 3 contacts (Tip, Ring 1, and Sleeve) are utilized. A standard 3.5 mm stereo TRS plug works perfectly. 🛠️ DIY: How to Build Your Own KT-8900 Cable

What (Windows 10/11, macOS, Linux) are you running? _ / \ | Tip (RXD) | |

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The "top" of the QYT KT8900 programming cable refers to the – two plugs, one ground, two data lines. No power lines are present, so don't expect the radio to power up via USB. Unlike many handheld radios that use dual-pin connectors,

Disclaimer: Always verify your radio’s PCB version. Incorrect wiring can damage your radio or computer. When in doubt, buy a verified cable from a reputable seller.

| DB-9 Pin | USB Pin | Signal Name | | --- | --- | --- | | 1 | D+ | Transmit Data | | 2 | D- | Receive Data | | 3 | GND | Ground | | 7 | VCC | Power |