| Type: | Amateur VHF transceiver |
| Frequency range: | TX: 144-148 / 220-225 MHz RX: 136-174 / 215-239 MHz |
| Mode: | FM |
| RF Power output: | Hi: 50/25 W Lo: 5/5 W |
| Receiver system: | N/A |
| Sensitivity: | N/A |
| Selectivity: | N/A |
| Image rejection: | N/A |
| Voltage: | 13.8 VDC |
| Current drain: | RX: Max ? A TX: Max ? A |
| Impedance: | 50 ohms |
| Dimensions (W*H*D): | ? mm |
| Weight: | ? Kg |
| Manufactured: | 199x-199x (Discontinued) |
| Other: | 30 memories. CTCSS. Twin RX |
 TM-631-schematic_diagram.zip | 2823 kB |
 TM-631_block_diagram.JPG | 759 kB |
| TM-631_modifications.zip | 73 kB |
 TM-631_specification.JPG | 479 kB |
