Garmin GTN 625 Installation Manual - page 25
190-01004-02
GTN 625/635/650 TSO Installation Manual
Rev. F
Page 1-7
1.3.5.2 COM Receiver Specifications
Characteristics
Specifications
Classes
C and E
Frequency Range
118.000 to 136.975 MHz, 25 kHz channel spacing
118.000 to 136.992 MHz, 8.33 kHz channel spacing
Headset Audio Output
Up to 100 mW into a 500
load
Audio Response
Less than 6 dB of variation between 350 and 2500 Hz.
Audio Distortion
Less than 5% at rated output power
AGC Characteristics
Less than 3 dB of variation in the audio output from -93 to -13 dBm
(power absorbed by a 50
load)
Sensitivity
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
Squelch
Automatic squelch with manual override
Selectivity
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.