GME TX3500S User Manual

Page 25

T X 3 5 0 0 S

I N S T R U C T I O N M A N UA L

PA G E 2 5

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:

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:

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:

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 Ohm termination.

SPECIFICATIONS

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