Apollo GX50 GPS - Comm Receiver Performance (GX60;65 Only); Comm Transmitter Performance (GX60;65 Only)

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Specifications

34 Apollo GX50/60/65 Installation Manual

COMM RECEIVER PERFORMANCE (GX60/65 ONLY)

Class......................................................... D

Frequency range ....................................... 118.000 to 136.975 MHz, 760 channels

Sensitivity................................................. 1µV (2µV hard) for 6dB S+N/N with 30%

modulation at 1000Hz

Selectivity................................................. < 6dB variation at ± 7 kHz, > 60dB at ± 22 kHz

Speaker audio output level....................... 12 watts into 4Ω, 8 watts into 8Ω

Headphone audio output level.................. 280 mW into 100Ω, 120mW into 500Ω

Distortion.................................................. < 5% at rated output at 1000 Hz

AGC characteristics.................................. < 3dB variation in audio output from 5µV to

100mV input, 15% to 90% modulation

Squelch control......................................... Automatic squelch with manual override

COMM TRANSMITTER PERFORMANCE (GX60/65 ONLY)

Class......................................................... 4

Output power............................................ 8 watts minimum carrier at >12VDC input,

6 watts minimum at 10VDC input (transmit is

locked out below 9 volts input)

Frequency range ....................................... 118.000 to 136.975 MHz, 760 channels

Frequency tolerance.................................. ±15ppm from -20°C to +70°C

Microphone input..................................... Two inputs, standard carbon or dynamic mic with

integrated preamp providing minimum 70mV rms

into 1000Ω load

Modulation capability............................... 85% with 100mV to 1000mV rms microphone input

at 1000 Hz

Audio frequency distortion....................... < 10% at 85% modulation at 350 to 2500 Hz

Audio frequency response........................ < 4 dB variation with 350 to 2500 Hz, 85%

modulation

Carrier noise level .................................... > 35 dB down

Sidetone output......................................... up to 280 mW into 100Ω, 120 mW into 500Ω

Duty cycle................................................. 100%

Stuck mic time-out................................... 35 second time-out, reverts to receive