HIGH RF POWER OUTPUT[60W]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 tranceiver 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 stride, the TM-271A meets the strict U.S. Department of Defense MIL-STD 810 C,D,E & F environmental standards for vibration and shock.
ALPHANUMERIC LCD AND ILLUMINATED KEYPAD
Capable of displaying up to 6 large alphanumeric characters, the green LCD display comes with a 31-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 quicklyh accessed via menu).
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 200memory channels can be used to store transmit and receive frequencies independently.Additionally, memory data can be edited and stored on a PC using the optional PG-5D PC interface cable and MCP-1A Memory Controls Software.
MEMORY NAME FUNCTION
At-a-glance identification of 100 memory channels is possible with up to 6 alphanumeric characters per channel. Up to 200 chsnnels are available if the memory name function is not used.
MULTIPLE SCAN FUNCTIONS
For maximum versatility, the TM-271A offers several scan functions,including band scan,memory scan,program scan,memory 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
With a built-in TCXO, frequency stability is ±2.5ppm, while frequency drift is less than ±365 Hz at -20°C ~ +60°C.
General
Frequency Range TX:144-148 MHz,RX:136-174 MHz
Mode F3E(FM)
Power Requirement 13.8 V DC ±15%, negative ground
Current Drain Transmit : Less than 13.0 A(High), less than 8.0 A(Low)
Receive : Less than 1.0 A
Operating Temperature -20°C ~ +60°C )
Antenna Impedance 50Ω
Microphone Impedance 600Ω
Frequency Tolerance ±2.5ppm(-20°C ~ +60°C)
Dimensions(W x H x D)
(projections included) 6.30" x 1.69" x 5.39"(160 x 43 x 137mm)
6.33" x 1.69" x 6.65"(161 x 43 x 169mm)
Weight 2.6 lbs. ( 1.2 kg )
TRANSMITTER
RF Output Power (approx.) HI:60W LOW:25W
Modulation Reactance modulation
Maximum Frequency Deviation ±5 kHz
Modulation Distortion Less than 3%(300Hz~3kHz)
RECEIVER
Circuitry Double Conversion Superheterodyne
Intermediate Frequency 1st IF:49.95 MHz, 2nd IF 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: More than 12 kHz(Narrow: more than 10 kHz), -60 dB: Less than 30 kHz(Narrow: less than 24 kHz)
Audio Output Power More than 2 W (5% distortion)
