PA G E 2 6
I n s t r u c t I o n m A n uA l
t X 4 5 0 0
ELECTRICaL
General
compliant specification: meets As/nZs 4365 for
radio communications
equipment in the uHF
citizen and personal radio
service.
Frequency range tX: 476.425-477.4125 mHz
number of channels: 80
channel spacing: 12.5 kHz
operation mode: simplex or half Duplex
with repeater talk around.
scanning speed: 50 ms per channel
(20 channels per second).
Antenna Impedance: 50 ohms nominal
nominal Battery Voltage: 12 volts Dc
operating Voltage range: 10-16 volts Dc
Battery Polarity: negative Earth
standard test Voltage: 13.8 volts Dc
overvoltage Protection: 25 volts Dc maximum.
At 18 volts Dc the channel
display flashes ‘Hi Dc’ for
5 seconds on receive.
the rF power is reduced
and tX flashes on
transmit.
reverse Voltage
Protection: Diode crowbar
overcurrent Protection: In-line 2 amp fuse
operating temperature: -10°c to 60°c
Transmitter
rF output: 5 watts
spurious Emission: < - 70 dBc
Frequency Error: < ± 1.5 kHz
modulation: Fm
maximum Deviation: < ± 2.5 kHz at + 20 dB
AF limiting.
transmit Frequency
response: + 6 dB per octave
300 Hz to 3 kHz + 1-3 dB.
Demodulated Audio
signal to noise: > 45 dB unweighted
current consumption: 1.7 amps with 50 ohms
termination.
Receiver
Intermediate Frequencies: 38.85 mHz, 450 kHz
sensitivity: - 122 dBm for 12 dB
sInAD unweighted
selectivity: - 6 dB at + 3.5 kHz
- 60 dB at ± 12.5 kHz
Intermodulation
Immunity: -72 dB
Blocking Immunity: -98 dB
spurious response
Immunity: 70 dB
Audio output Power: 3 watts average into
4 ohms
Audio signal to noise: > 45 dB unweighted
receive Frequency
response: - 6 dB/octave
de-emphasis 300 Hz to
3 kHz + 1-3 dB.
current consumption: < 175 mA muted
750 mA Full volume.
conducted spurious
Emission: < - 70 dBm
MECHaNICaL SPECIFICaTIONS &
CONNECTIONS
Dimensions: 50 (H) x 171 (l) x
112 (D) mm
Weight: 646 grams
12 volt Power supply: two core cable with
bulkhead connector in rear
panel.
Antenna: so239 Panel socket
External speaker: 3.5 mm mono Jack
microphone Port: 6 Way telephone style
with rubber strain relief.
SPECIFICaTIONS
specifications
are subject to change without notice or obligation
