United Kingdom & EMEA

TM-281AM2
  • TM-281AM2

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TM-281AM2

VHF Mobile FM Transceiver (non-EU use)

 

Discontinued model

 


Key Features

Frequency Coverage: 136-174 MHz
201 Memories (100 with alpha-tagging)
65 Watt RF Output
High-Quality Front Mounted Loudspeaker
Built-In CTCSS/DCS Encoder/Decoder
Rugged Construction to US MIL-STD 810G
Replaces previous TM-271A models

Supplied With

D.C. CableYes
Instruction ManualYes, English, Spanish & French
MicrophoneYes, KMC-30 Non-keypad Hand Microphone
Microphone HangerYes
Mounting BracketYes
Screw SetYes

Amateur Radio General Features

1750 Hz Tone Burst Function.Yes
Alphanumeric LCD DisplayYes
Antenna SocketSO-239 (M-Type)
Auto Power OffYes
Auto Repeater OffsetYes
Automatic Simplex CheckerYes
Beat Shift FunctionYes
Busy Channel Lock-outYes
Calling Channel FunctionYes
Channel Display ModeYes
CTCSS Encoder/DecoderYes, 42 EIA Tones with Tone Scan function
DCS Encoder/DecoderYes, 104 Tones with Tone Scan function
Direct Frequency EntryYes
DTMF EncoderYes
DTMF MemoryYes, 10 DTMF memories of 16 digits each
High-Quality Front SpeakerYes
Illuminated Front Panel KeysYes
Key Beep On/OffYes
Key LockYes
Loudspeaker Socket3.5 mm
Memory Channel Lock-outYes
Memory Channels201 Channels
Memory Channels with Alpha-tagging100 Memory Channels
Menu System for individual set-upYes
Microphone SocketRJ-45
Monitor FunctionYes
MR-ShiftYes
Multiple Scan FunctionsYes
PC Programmable MemoriesYes
Power-On MessageYes
Reverse Repeater CheckerYes
Time-Out TimerYes
Variable LCD Brightness with Automatic DimmerYes
Wide/Narrow Deviation SelectionYes

Amateur Mobile Specifications

RF Output Power (approx.) - High65 W
RF Output Power (approx.) - Low25 W
TX Frequency Coverage - VHF136 MHz to 174 MHz
RX Frequency Coverage - VHF136 - 174 MHz
Transmitter ModulationVariable-Reactance modulation
Transmitter Modulation DistortionLess than 3% (300 Hz to 3 kHz)
Transmitter Maximum Frequency Deviation - Wide± 5 kHz
Antenna Impedance - 50 OhmYes
Audio Output PowerMore than 2 W (5% Distortion)
Weight1.13 kg (approx.)
Current Drain - RXLess than 1 A
Current Drain - TXLess than 14 A (Hi-Power), Less than 8 A (Low-Power)
Dimensions160 mm (W) x 43 mm (H) x 126 mm (D) - excluding projections
Frequency Step Sizes2.5, 5, 6.25, 10, 12.5, 15, 20, 25, 30, 50 and 100 kHz
Frequency Stability± 2.5 ppm (-20 °C to +60 °C)
Microphone Impedance600 Ohms
Modes - F3E FMYes
Operating Temperature Range-20 °C to +60 °C
Power Requirement - 13.8 V DC ± 15%Yes
Receiver CircuitryDouble Super Heterodyne
Receiver Intermediate Frequency - 1st IF49.95 MHz
Receiver Intermediate Frequency - 2nd IF450 kHz
Receiver Selectivity - NarrowMore than 10 kHz at -6 dB, Less than 24 kHz at -60 dB
Receiver Selectivity - WideMore than 12 kHz at -6 dB, Less than 30 kHz at -60 dB
Receiver Sensitivity - NarrowLess than 0.22 µV at 12 dB SINAD
Receiver Sensitivity - WideLess than 0.18 µV at 12 dB SINAD
Receiver Squelch SensitivityLess than 0.1 µV

Applicable Standards