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Overview
Speech communication uses voice-modulated electromagnetic waves to transmit and receive data between different aircraft and between aircraft and ground stations. It also uses satellite for communication.
04/21/16
VHF Communication System
The VHF COM system is a remote-controlled integrated COM radio system. The VHF COM unit 1 and VHF COM unit 2 transmit and receive voice/data on 2,278 channels between 118.000 and 136.975 MHz.
On Global 5000 and on A/C 9002 and Subs Post SB 700-23-002 for Global Express/XRS:
The VHF COM unit 3 transmits and receives voice/data on 2,278 channels between 118.000 and 136.975 MHz, and it does not have the extended frequency range.
04/21/16
HF Communication System
The HF COM system is a long range two-way voice communication system which operates on 280,000 channels between 2.0000 and 29.9999 MHz (in 100 Hz steps).
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Satellite Communication System
The SATCOM system transmits and receives voice/data on six L-band channels between 1.5 and 1.6 GHz.
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Cabin Communication System
The cabin communication system is a digital airborne telephone system that operates on the GTE AIRFONE digital air-ground telephone network. All communication functions (voice and data) in an office are made available in the airborne environment. It includes communication inside the aircraft.