Table 1-5 Com Receiver Specifications - Garmin GTR 225 Installation Manual

Characteristics
Classes
Frequency range
Headset audio output
Speaker audio output
Audio response
Audio distortion
Automatic gain control
(AGC) characteristics
Sensitivity
Squelch
Selectivity
Maximum audio output
reduction (offset
carrier operation)
190-01182-02
Rev. F

Table 1-5 COM Receiver Specifications

C, E, H1, and H2
118.000 to 136.975 MHz, 25 kHz channel spacing
118.000 to 136.992 MHz, 8.33 kHz channel spacing
100 mW minimum into a 500 Ω load
12 W into 4 
Less than 6 dB of variation between 350 and 2500 Hz
Less than 5% at rated output power
Less than 3 dB of variation in the audio output from -93 to -13 dBm (power
absorbed by a 50  load)
SINAD on all channels is greater than 6 dB when the RF level is
2 uV (hard) or -107 dBm (power absorbed by a 50  load) modulated 30%
at 1000 Hz at rated audio output power
Automatic squelch with manual override
6 dB BW is greater than + 7 kHz for 25 kHz channeling
60 dB BW is less than ±22 kHz for 25 kHz channeling
6 dB BW is greater than ±3.5 kHz for 8.33 kHz channeling
60 dB BW is less than ±7.37 kHz for 8.33 kHz channeling
11.2 dB
Specifications
GTR 225/GNC 255 TSO Installation Manual
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