WISCO International (Kenwood TM-271 Specifications)

General	TM-271A
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 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	2.6 lbs. (1.2 kg)
Transmitter
RF Output POwer (approx.) HI LO	60W 25W
Modulation	Reactance modulation
Maximum Frequency Deviation	±5 kHz
Modulation Distortion	Less than 3% (300 Hz- 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 0.1µV
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)