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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 |
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Despite its size, the TM-271A can provide an impressive 60 watts of RF
power, with a choice of High/Low output.
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.
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. |
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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). |
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Memory Name |
Menu Mode |
Power-on Message |
The TM-271A is supplied with a DTMF microphone as standard.
The large oval (2.28" x 1.38") speaker mounted in the front panel
provides excellent clarity.
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. |
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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.
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.
The built-in CTCSS and DCS encoder/decoder enables operation of the 42
CTCSS subtone frequencies and 104 DCS subtone codes.
Thanks to the built-in TCXO, frequency stability is ±2.5ppm, while
frequency drift is less than ±365 Hz at -20°C ~ +60°C.
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Power-on Message |
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Wide/Narrow Deviation Selection
(per channel) |
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1750Hz Tone Burst |
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Automatic Simplex Checker |
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Reverse Repeater Checker |
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Auto Repeater Offset |
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Beep On/Off |
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Auto Power Off |
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Time Out Timer |
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Channel Display Mode |
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Busy Channel Lock-out |
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Memory Channel Lock-out |
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MR-shift |
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Direct Frequency Enter |
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Key Lock |
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KMC-30
Hand Microphone |
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KMC-32
16-Key Hand Microphone
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MC-60A
Desktop Microphone (Requires MJ-88) |
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PG-2N
DC-Power Cable |
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PG-3B
DC Line Noise Filter |
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PS-33
DC-Power Supply |
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PS-53
Heavy Duty DC-Power
Supply (22.5A) |
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SP-50B
External Speaker |
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KPS-15
DC-Switching Power Supply |
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MJ-88
Microphone Plug Adapter |
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MCP-1A
Memory Control Software
(version 2.0
or later)* |
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Not all accessories are available in all markets.
For availability, contact your nearest dealer.
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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 (-20°C ~ +60°C) |
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) |
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Kenwood follows a policy of continuous
advancement in development.
For this reason specifications may be changed without notice.
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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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