TM-281A

GENERAL
Frequency Range TX 144 - 148 MHz
RX 136 - 174 MHz
Mode F3E (FM)
Power Requirement 13.8 V DC ±15 %, negative ground
Curent Drain Transmit Less than 14 A (High), less than 8 A (Low)
Receive Less than 1 A
Operation Temperature Range -20 °C ~ +60 °C
Antenna Impedance 50 Ω
Microphone Impedance 600 Ω
Frequency Tolerance ±2.5 ppm (-20 °C ~ +60 °C)
Dimensions (W x H x D),
(Projections included)
160 x 43 x 126 mm
161 x 43 x 170.5 mm
Weight 1.13 kg
TRANSMITTER
RF Power Output Hi / Lo 65 W / 25 W
Modulation Variable reactance modulation
Maximum Frequency Deviation Wide: ±5 kHz, Narrow: ±2.5 kHz
Modulation Distortion Less than 3 % (300 Hz - 3 kHz)
RECEIVER
Circuitry Double super heterodyne
Intermediate 1st IF 49.95 MHz
2nd IF 450 kHz
Sensitivity (12 dB 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)

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

Applicable MIL-STD & IP

MIL-STD MIL 810C
Methods/
Procedures
MIL 810D
Methods/
Procedures
MIL 810E
Methods/
Procedures
MIL 810F
Methods/
Procedures
MIL 810G
Methods/
Procedures
Vibration 514.2/
Procedure VIII, X
514.3/
Procedure I Category 8
514.4/
Procedure I Category 8
514.5/
Procedure I Category 20
514.6/
Procedure I Category 20
Shock 516.1/
Procedure I, II, V
516.3/
Procedure I , IV
516.4/
Procedure I , IV
516.5/
Procedure I , IV
516.6/
Procedure I , IV