Kenwood TM-281A Car Radio VHF 136-174MHz 65W Mobile Radio HF Transceiver Base Radio Station
Main features
65 W of Reliable Reach
Install the kenwood tm281 as a kenwood mobile radio and you gain 65 W of clean VHF output on 144–148 MHz—perfect for long-haul links across construction sites or rural fire brigades without extra repeaters.
Install the kenwood tm281 as a kenwood mobile radio and you gain 65 W of clean VHF output on 144–148 MHz—perfect for long-haul links across construction sites or rural fire brigades without extra repeaters.
Crystal-Clear Audio
With a 2 W front speaker, active noise-filter and 0.2 µV sensitivity, this kenwood base radio delivers intelligible speech even in 100 dBA engine rooms, reducing missed calls and user frustration.
With a 2 W front speaker, active noise-filter and 0.2 µV sensitivity, this kenwood base radio delivers intelligible speech even in 100 dBA engine rooms, reducing missed calls and user frustration.
MIL-STD-810G & IP54 Ruggedness
Built to shrug off dust, rain, vibration and shock, every kenwood mobile radio ships ready for dashboard or rack mount, cutting spares and warranty claims for your projects.
Built to shrug off dust, rain, vibration and shock, every kenwood mobile radio ships ready for dashboard or rack mount, cutting spares and warranty claims for your projects.
Built-In CTCSS/DCS & DTMF
All encode/decode plus five programmable DTMF memories are standard—no add-on boards—so the kenwood mobile radio hooks straight into paging, gate control or telemetry systems you already deploy.
All encode/decode plus five programmable DTMF memories are standard—no add-on boards—so the kenwood mobile radio hooks straight into paging, gate control or telemetry systems you already deploy.
Backlit LCD & One-Knob Control
Large channel numbers, signal-strength bar and night-view amber backlight reduce driver distraction—critical when the kenwood base radio sits in EMS rigs or snow-plow dashboards.
Large channel numbers, signal-strength bar and night-view amber backlight reduce driver distraction—critical when the kenwood base radio sits in EMS rigs or snow-plow dashboards.
Ready-to-Install Accessory Ecosystem
KMC-30 keypad mic, PG-3B DC filter and SP-50B external speaker drop straight onto the same 8-pin modular jack—sell the kenwood tm281 as a complete kit and boost margin on every order.
KMC-30 keypad mic, PG-3B DC filter and SP-50B external speaker drop straight onto the same 8-pin modular jack—sell the kenwood tm281 as a complete kit and boost margin on every order.
Other functions
- TX/RX Frequency per Memory Channel
- RF Power Level – High (65 W) / Low (25 W)
- Channel Bandwidth – Wide (25 kHz) / Narrow (12.5 kHz)
- CTCSS Encode/Decode – 42 Tone Options
- DCS Encode/Decode – 104 Code Options
- Memory Name – Up to 6 Alphanumeric Characters per Channel
- Scan List & Priority Channel
- Scan Resume Mode – TO (Time), CO (Carrier), or Search
- Squelch Level – 0-15 Steps
- 1750 Hz Burst Tone On/Off
- Reverse Frequency (Split) Function
- Auto Repeater Offset On/Off
- Key Beep On/Off
- Auto Power-Off Timer
- Key Lock / Channel Lock
TM-281A Accessories
- Handheld MIC
- Bracket
- MIC stand
- Parts
- Power cord
- Manual
Specification
| Frequency Range | 144–148 MHz 136–174 MHz |
| Modulation | F3E (FM) |
| Power Requirements | 13.8 V DC ±15 %, negative ground |
| Current Consumption | TX:<14 A (high) / <8 A (low) RX:<1 A |
| Operating Temperature | -20 °C to +60 °C |
| Antenna Impedance | 50 Ω |
| Microphone Impedance | 600 Ω |
| Frequency Stability | ±2.5 ppm (-20 °C to +60 °C) |
| Dimensions (W×H×D) | 160×43×126 mm / 161×43×170.5 mm |
| Weight (Net) | 1.13 kg |
| RF Output Power (High/Low) | 65 W / 25 W |
| Maximum Modulation Deviation | Broadband ±5 kHz Narrowband ±2.5 kHz |
| Modulation Distortion | <3 % (300 Hz-3 kHz) |
| Receiver | |
| Circuit Form | Double-conversion superheterodyne |
| IF (1st / 2nd) | 49.95 MHz / 450 kHz |
| Sensitivity (12 dB SINAD) | <0.18 μV (Narrow <0.22 μV) |
| Squelch Sensitivity | <0.1 μV |
| Selectivity (-6 dB / -60 dB) | >12 kHz / <30 kHz (Narrow: >10 kHz / <24 kHz) |
| Audio Output Power | >2 W (5 % distortion) |
