Technical Specifications
| Attribute | Details |
|---|---|
| Manufacturer | E.F. JOHNSON |
| Model | 4175 |
| Product Category | Transceiver |
Mic Wiring
Pin 1 – Mic Audio
Pin 2 – TX / PTT
Pin 3 – RX
Pin 4 – Auxiliary
Pin 5 – Switch Line
Pin 6 – Shield / Ground
Notes: 6 = Shield