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OpenTNC Cable
OpenTNC Cable
By NA6D
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$20.00 USD
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$20.00 USD
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This high-quality, standalone radio interface cable connects your TNC to your transceiver. Featuring a standard DB9 connector on the TNC side, these cables are wired to match the classic Kantronics pinout. They serve as a direct replacement or expansion cable for the OpenTNC, as well as a cost-effective, high-reliability alternative for Kantronics and other compatible TNCs.
Available Variants
- Mini-DIN 6: Connects to the data port of most modern mobile transceivers.
- Kenwood K1: Connects to standard handheld transceivers (HTs) utilizing the common 2-pin K1 configuration.
Technical Specifications
- Length: 60 cm
- Jacket Material: Flexible, durable Thermoplastic Elastomer (TPE)
- Shielding: Dual-shielded (foil and braided shield) explicitly engineered to mitigate RF ingress and prevent common mode noise from degrading data packet transmission.
- TNC Interface: DB9 male (OpenTNC pinout, Kantronics-compatible)
Ensure your specific TNC equipment shares the Kantronics DB9 wiring standard before using this cable with non-NA6D hardware.
Pinout Reference
| DE9 Pin (TNC) | Signal | Mini-DIN6 Pin (Radio Data Port) |
| Pin 1 | TX Audio | Pin 1 (Audio in to Radio) |
| Pin 2 | Squelch Open | Pin 6 |
| Pin 3 | PTT | Pin 3 |
| Pin 5 | RX Audio | Pin 5 (De-emphasized 1200 Baud Audio) |
| Pin 6 | Ground | Pin 2 |
| Pin 4, 7-9 | Unconnected | Pin 4 |
| DE9 Pin (TNC) | Signal | K1 HT Plug |
| Pin 1 | TX Audio | 3.5mm Ring |
| Pin 3 | PTT | 3.5mm Sleeve |
| Pin 5 | RX Audio | 2.5mm Tip |
| Pin 6 | Ground | 2.5mm Sleeve |
| Pin 2, 4, 7-9 | Unconnected | 3.5mm Tip, 2.5mm Ring |
