TM-271 USER MANUAL (PDF)

           TM-271 BROCHURE (PDF)

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 such advanced features as multiple scan functions and memory names, as well as NOAA Weather Band & emergency alert reception*. On or off the road, you can always enjoy the sophistication of high-quality audio. Illuminated keys and a large LCD with adjustable green backlighting for easy operation day or night. The TM-271A is the ideal companion for all your travels.
* US only

HIGH RF POWER OUTPUT i60Wj

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

WEATHER ALERT/RX (US only)

This transceiver is capable of receiving the NOAA Weather Band and responding to emergency transmissions such as storm warnings by emitting an audible alert tone.

US MIL-STD 810 C/D/E/F

 
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 alphanumeric characters, the positive-type green LCD display comes with a 32-step brightness control to suit all driving conditions. Also, the front panel and microphone keypads are both 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

DTMF MICROPHONE

The TM-271A is supplied with a DTMF microphone as standard.

HIGH-QUALITY FRONT SPEAKER

The large oval (2.28" x 1.38") speaker mounted in the front panel provides excellent clarity.

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 codes.

HIGH FREQUENCY STABILITY

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

OTHER FEATUERS

 
Power-on Message Wide/Narrow Deviation Selection (per channel)
1750Hz Tone Burst Automatic Simplex Checker
Reverse Repeater Checker Auto Repeater Offset
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 KPS-15 MJ-88
PS-33
DC-Power Supply
PS-53
Heavy Duty DC-Power
Supply (22.5A)
SP-50B
External Speaker
KPS-15
DC-Switching Power Supply
MJ-88
Microphone Plug Adapter
MCP-1A      
MCP-1A
Memory Control Software

(version 2.0
or later)*
     

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


Specifications

 
  TM-271A
General
Frequency Range TX:144-148 MHz
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 (-20C ~ +60C)
Dimensions (W x H x D)
  (Projections included)
6.30" x 1.69" x 5.39" (160 x 43 x 137 mm)
6.33" x 1.69" x 6.65" (161 x 43 x 169 mm)
Weight 2.6lbs (1.2 kg)
Transmitter
RF Output Power (approx.)
  HI
  LO
60 W
25 W
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-271A
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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