Specifications of UHF 1.2~4.8 kbps

GENERAL

OPERATING FREQUENCY RANGE

400 ~ 470 MHz

CHANNEL SPACING

25KHz

NUMBER OF CHANNELS

60

ANTENNA IMPEDANCE

50 Ohm

FREQUENCY STABILITY

±2.0ppm

OPERATION VOLTAGE RANGE

DC 12V (11V ~ 14V)

STAND-BY CURRENT

90mA

OPERATING TEMPERATURE

-40 ~ +70℃

DIMENSIONS(mm)

157 x 109 x 41

157 x 109 x 41

125 x 76 x 34

125 x 76 x 34

WEIGHT (grams)

780

750

370

370

TRANSMITTER

RF POWER OUTPUT

25W

8W

7W

1W

OUTPUT 2ND HARMONIC

Less than –65dB

SPURIOUS EMISSIONS

Less than 0.25uW (30MHz ~ 1GHz)

MAXIMUM FREQUENCY DEVIATION

±5KHz

CURRENT DRAIN ( 12V Power Supply)

5.0A @ 25W

2.0A @ 8W

1.8A @ 7W

1.0A @ 1W

FM HUM AND NOISE RATIO

Greater than –50dB

AUDIO FREQUENCY DISTORTION

3% 1KHz for 3KHz deviation

AUDIO FREQUENCY RANGE

300Hz ~ 3400Hz ±2dB

TRANSMITTER ATTACK TIME

< 5ms

RECEIVER

TYPE OF RECEIVER

Double, super heterodyne

INTERMEDIATE FREQ.

45MHz (1st IF), 455KHz (2nd IF)

SENSITIVITY (12dB SINAD)

Less than 0.2uV

SQUELCH SENSITIVITY

0.3uV

ADJACENT CHANNEL SELECTIVITY

Greater than –65dB

SPURIOUS AND IMAGE REJECTION

Greater than –65dB

OUTPUT AUDIO DISTORTION

3% @ 1KHz for ±5KHz deviation

FM HUM AND NOISE RATIO

Greater than 40dB

DATA and INTERFACE

MODULATION

MSK or GMSK

AIR RATE

1.2kbps ~ 4.8kbps

INTERFACE

RS-232, RS-485 or TTL

INTERFACE BAUD RATE

1200 ~ 115200bps programmable

INTERFACE DATA BIT

8 bits

INTERFACE PARITY BIT

None / Even / Odd programmable