KENWOOD Corporation

TM-271A 144MHz FM TRANSCEIVER
TM-271A 144MHz FM TRANSCEIVER



All-Terrain Performance
All-Terrain Performance
Frontiers are not for the meek. It takes a rugged 4WD vehicle to meet the challenges of the wilderness. And KENWOOD's new TM-271A is built just as tough. This compact, MIL-STD-compliant transceiver delivers powerful mobile performance and other welcome features as multiplescan functions and memory names. But on or off the road, you can always enjoy the sophistication of high-quality audio, illuminated keys and a large LCD with adjustable cool-green backlighting for simple operation, day and night. The TM-271A is the ideal companion for all your travels.

HIGH RF POWER OUTPUT Åi60WÅj

Despite its size, the TM-271A can provide an impressive 60 watts of RF power, with a choice of High/Low output.

US MIL-STD 810 C/D/E/F & EUROPE’S E-MARK

Built tough to take rough treatment in its stride, the TM-271A meets the strict U.S. Department of Defense MIL-STD 810 C, D, E and the latest F environmental standards for vibration and shock. COMPLIANT LOGO

ALPHANUMERIC LCD AND ILLUMINATED KEYPAD


Capable of displaying up to 6 large alphanu- meric characters, the positive-type green LCD comes with a 32-step brightness control to suit all driving conditions. Also, the front panel and keys are illuminated for ease of use. Note that keys for only the 5 most frequently used functions are arranged on the front panel for simplicity (other functions can be quickly accessed via menu).
ALPHANUMERIC LCD AND ILLUMINATED KEYPAD
Memory Name Menu Mode Power-on Message
Memory Name Menu Mode Power-on Message

200 MEMORY CHANNELS PLUS 1 CALL-CHANNEL

Each of the 200 memory channels can be used to store, transmit, and receive frequencies independently. Additionally, memory data can be edited and stored on your computer using MCP-1A Memory Control software. For details on purchasing an interface cable, consult your local dealer. MCP-1A

MEMORY NAME FUNCTION

At-a-glance identification of 100 memory channels is possible with up to 6 alphanumeric characters per channel. Up to 200 channels are available if the memory name function is not used.

MULTIPLE SCAN FUNCTIONS

For maximum versatility, the TM-271A offers several scan functions, including VFO (band) scan, all memory scan, program scan, memory group scan (group scan), call scan, tone/CTCSS scan, DCS scan and priority scan, which checks a priority channel every 3 seconds. TO (Time-operated), CO (carrier-operated) and seek scan resume modes are also provided.

CTCSS & DCS ENCODER/DECODER

The built-in CTCSS and DCS encoder/decoder enables operation of the 42 CTCSS subtone frequencies and 104 DCS subtone frequencies.

HIGH FREQUENCY STABILITY

Thanks to the built-in TCXO, frequency stability is ±2.5ppm, while fre- quency drift is less than -365 Hz at -20°C ~ +60°C.

OTHER FEATUERS

Supplied with microphone Power-on Message
Wide/Narrow Deviation Selection (per channel) 1750Hz Tone Burst
Automatic Simplex Checker Reverse Repeater Checker
Beep On/Off Auto Power Off
Time Out Timer Channel Display Mode
Busy Channel Lock-out Memory Channel Lock-out
MR-shift Direct Frequency Enter
Key Lock  

Optional Accessories

KMC-30 KMC-32 MC-60A PG-2N PG-3B
KMC-30
Hand Microphone
KMC-32
16-Key Hand Microphone
MC-60A
Desktop Microphone (Requires MJ-88)
PG-2N
DC-Power Cable
PG-3B
DC Line Noise Filter
PS-33 PS-53 SP-50B MJ-88 MCP-1A
PS-33
DC-Power Supply
(20.5A)
PS-53
Heavy Duty DC-Power
Supply (22.5A)
SP-50B
External Speaker
MJ-88
Microphone Plug Adapter
MCP-1A
Memory Control Software

(version 2.0
or later)*

*Free Soft download>>

Not all accessories are available in all markets. For availability, contact your nearest dealer.

Specifications

TM-271A
General
Frequency Range Guaranteed Range: TX/RX 144-148 MHz
Operational Range: TX/RX 136-174 MHz
Mode F3E (FM)
Power Requirement 13.8V DC ±15%, negative ground
Current Drain
  Transmit
  Receive
Less than 13.0 A (High), less than 8.0 A (Low)
Less than 1.0 A
Operation Temperature Range -20° C ~ +60° C
Antenna Impedance 50 ohms
Microphone Impedance 600 ohms
Frequency Tolerance ±2.5 ppm (-20°C ~ +60°C)
Dimensions (W x H x D)
  (Projections included)
160 x 43 x 137 mm
(161 x 43 x 169 mm)
Weight 1.2 kgs
Transmitter
RF Output Power
  High
  Low
60 W
25 W (approx.)
Modulation Reactance modulation
Maximum Frequency Deviation ±5 kHz
Modulation Distortion Less than 3% (300 MHz ~ 3 kHz)
Receiver
Circuitry Double Conversion Superheterodyne
Intermediate Frequency
  1st IF
  2nd IF
49.95 MHz
450 kHz
Sensitivity (12dB SINAD) Less than 0.18 μV (Narrow: less than 0.22 μV)
Squelch Sensitivity Less than 0.1 μV
Selectivity
  -6 dB
  -60 dB
More than 12 kHz (Narrow: more than 10 kHz)
Less than 30 kHz (Narrow: less than 24 kHz)
Audio Output Power More than 2 W (5% distortion)

KENWOOD follows a policy of continuous advancement in development.
For this reason specifications may be changed without notice.


Applicable MIL-STD

  TM-271E
MIL-STD 810C 810D 810E 810F
Vibration 514.2/VIII, X 514.3/I 514.4/I 514.5/I
Shock 516.1/I, II, V 516.3/I, IV 516.4/I, IV 516.5/I, IV



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Updated 03/11/21 (C) 2001 KENWOOD Corporation