Spegifigations 6 Citi Vx Cacasiarsunnc's Sabeiappne - Kenwood TH-28A Instruction Manual

SPECIFICATIONS
GENERAL TH-28A/E —_' TH-48A/E TH-28A/E —- TH-48A/E
U.S.A. Version 144 to 148 438 to 450 MODULATION Reactance
FREQUENCY [U.K.and Europe | 144 to 146 | 430 to 440 MAX. _ FREQUENCY DEVIATION £5kHz
RANGE (MHz) 144 to 146 or 430 to 440 SPURIOUS RADIATION less than —60dB
Other market
144 to 148 or 438 to 450 RECEIVER
MODE L F3E (FM) :
ANTENNA _ IMPEDANCE 50.0 CIRCUITRY Double conversion
OPERATING TEMPERATURE —20°C~+60°C (—4°F~140°F) superistaredyne
POWER DC IN (nominal | 72 V ~ 16 VDC (188 VOC) INTERMEDIATE FREQUENCY ist. | 45.05 MHz
REQUIREMENTS |gaTTERY PACK| 63 V ~ 16 VDC (7.2VDC ) INTERMEDIATE FREQUENCY 2nd. 455 kHz
CURRENT DRAIN (Approx.) (Approx.) fecatian fess than
; 1 —13dB,
13.8VDC (Ext.Power Supply) H 1.48 1.6A SENSITIVITY (208 gSINAD) - aie tee
7.2VDC (Battery) H
0.95A 1.1A
(O18
.2uV)
SQUELCH _ SENSITIVITY less than —20dBy(0.1V)
Transmit mode L 0.5A 0.6A SELECTIVITY —6dB more than 12kHz
Transmit mode EL 90mA 95mA SELECTIVITY —40dB less than 28kHz
Receive mode with no signal coe aime AUDIO OUTPUT POWER more than 200 mW
Battery Save mode . 2 (10% distortion) (across 80 load )
| GROUND Negative
DIMENSION(W X H X D)
49.5 X 115.8 X 37.8mm
DIMENSION( Projection Included )
61.2 X 131.5 X 37.8mm
WEIGHT 330g
MICROPHONE _ IMPEDANCE 2kQ
TRANSMITTER
H (13.8V DC) more than 5W
OUTPUT H (7.2V DC) Approx. 2W
POWER M (13.8V DC) Approx. 2.5W
L (7.2V DC) Approx. 0.5W
EL (7.2V DC) Approx. 20mW
60
NOTES:
1. Circuits and ratings are subject to change without notice, due to
development in technology.
2. Recommended duty cycle :
1 minute Transmission, 3 minutes Reception.