| SONAR | ||
| model(s) | wire color | conection |
| MODEL E | Audio | ring |
| FS-23 | Ground | sleeve |
| MODEL G | N/C | N/C |
| MODEL H | Common | sleeve |
| FS-3023 | PTT | tip |
| FS-2340 | receive | N/C |
| (Hi-Z, Use an amplified mic only) | ||
| model(s) | wire color | conection |
| J-23 | Audio | Audio |
| Ground | Ground | |
| (Hi-Z, Use an amplified mic only) | N/C | N/C |
| Common | Ground | |
| PTT | PTT | |
| receive | receive | |