GME TX3520 - Manual (Page 34)

PA G E 3 4 I n s t r u c t I o n m A n uA l t X 3 5 1 0 / t X 3 5 2 0 / t X 3 5 4 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
over Voltage Protection: 30 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: 29 (H) x 128 (l) x 117 (D) mm
Weight: 450 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