TM-721G
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GENERAL
| Type | Amateur VHF/UHF transceiver |
|---|---|
| Frequency range | Japanese domestic market TX: 144-146 / 430-440 MHz RX: 144-146 / 430-440 MHz |
| Tuning steps | 5 / 10 / 12.5 / 15 / 20 / 25 KHz |
| Frequency stability | ±10 ppm @ -20 to +60°C (-4 to +140°F) |
| Mode | FM |
| Channels / memory management | 14 regular (0-d) of which #1 functions as priority channel 1 call 2 band edge search limits 2 odd repeater split RAM storage with lithium battery backup |
| Repeater shift / offset | ±600 KHz (2 m)±5 MHz (70 cm) |
| Power supply | 13.8 VDC ±15% («T» connector, on pigtail) |
| Current drain / power consumption | RX: Less than 600 mA (No signal)TX: Max 3.5 A |
| Antenna impedance / connector | 50 ohm / Two SO-239 (On pigtails) |
| Dimensions (W*H*D) | 150*50*180 mm (5.91*1.97*7.09") |
| Weight | 1.6 Kg (3.53 lb) |
| Other features | CTCSS/PL encoder. Twin RX. |
RECEIVER SECTION
| Receiver system | Double conversion superheterodyne 1st IF: 10.7 MHz (2 m) — 30.825 MHz (70 cm) 2nd IF: 455 KHz |
|---|---|
| Sensitivity | 0.16 uV (12 dB SINAD) |
| Squelch sensitivity | 0.09 uV (Threshold) |
| Noise figure | — |
| Selectivity | 12 KHz (-6 dB)24 KHz (-60 dB) |
| Image rejection | — |
| AF output power / speaker | 2 W at 5% distortion / 8 ohm |
| External speaker connector | TS «Minijack» (3.5 mm), 8 ohm |
TRANSMITTER SECTION
| RF output power | HighLow 2 m:10 W1 W 70 cm:10 W1 W |
|---|---|
| 2 m | 10 W |
| 70 cm | 10 W |
| Modulation system | Reactance modulation |
| Max FM deviation (Factory set) | ±5 KHz |
| Spurious emissions | Better than -60 dB |
| Microphone impedance / connector | 500-600 ohm / 8-pin (Male locking ring jack) |
| Microphone input level | — |
MISCELLANEOUS
| Manufactured | Japan, 1988-19xx (Discontinued) |
|---|---|
| Additional info | — |
| DW-1 MB-11 MC-44 MC-44DM MC-55 MC-60S/8 MC-80 MC-85 PG-2N PG-3B PS-22 PS-32 RC-10 SP-41 SP-50B TSU-6 | Dual watch unit (439 MHz) Mobile mounting bracket Standard hand microphone Hand microphone with DTMF pad Mobile microphone with up/down buttons Desk microphone with up/down and lock buttons Desk microphone with up/down and lock buttons High class electret desk microphone DC power cable DC line noise filter AC power supply AC power supply, heavy duty Remote controller with DTMF/autopatch Mobile speaker, 4 ohm Mobile speaker, 8 ohm Tone squelch unit |
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