Aircraft Communication

The flight communication system is used for voice communication and data communication. The flight system is used for intermediate and local staff and staff. These indicators no longer replicate off the ionosphere or penetrate obstacles, including mountains or buildings. The benefit of Very High Frequency over High Frequency is that the link quality is a good deal better, and there's more reuse of the frequency channel. It also communicates with passengers, other airlines, and smaller stations (both speech and data). Aircraft communication systems include the following:

Ø  Radio Communication

o   HF system - Long Distance Communication

o   VHF program - Short-Range Voice Communication

Ø  Radio Management Panels

Ø  SELCAL system - With the selected phone using HF and VHF

Ø  SATCOM system - Satellite Communications

Ø  ACRS - Data Connection

Ø  Interphone Connection

o   Flight Interphone System - Connection of internal cockpit and ground machine.

o   Cabin Interphone System - For cabinet staff or cabinet team/communications pilots.

o   Service Interphone System - Low only, for repair workers only.

Ø  Ground Crew Call System - Telling ground crew or flight crews there is a call.

Ø  Passenger Address System - For passenger announcements from staff and cabinet stations.

Ø  Sound Control System

HF Communication System

HF was generally necessary for long-distance communication. However, with the arrival of Satellite Communications (SATCOM), its use declined. However, it's still in use. The high-frequency communication (HF) system provides speech over long distances. Provides communication between flights or between sub-stations and airlines. The HF system operates at a spread of natural philosophy frequency of 3 MHZ to 29.999 MHZ. The system uses the planet's surface and, therefore, the particle layer to cause the (escape) signal to be displayed. The gap between jumps varies, betting on the time of day, frequency, and altitude. HF communication radio uses to choose and management signals to transmit and receive voice communications radio replaces the RF network signal with the voice output of the craft intercom system. Throughout reception mode, the HF radio lowers the RF network signal. This separates the sound of the voice from the RF signal. The HF transceiver sends audio to the flight intercom system. The HF system operates within the vary of 3 MHZ to 29.999 MHz

 The HF communication system has the subsequent components:

•           Radio Instrument Panel

•           High-Frequency Transceiver

•           High-Frequency Antenna Connection

•           High-Frequency Antenna

Working

High-Frequency Frequencies (between 3 and thirty megahertz) The unit travels from a base unit or a hand-held receiver to the Earth's atmosphere. These radio signals "jump" in 0.5 and bypass the autumn that came to earth due to its inherent within the helpful supply of every characteristic transmitter/receiver tuned to an identical radio band. That means we should always attempt to speak additional typically.

VHF Communication Systems

VHF radio transmission could be a common variety of short as to medium communication. Provides smart and clear communication that's simple to vary and retrieve. The high-frequency communication (VHF) communication system provides communication between the lines of vision line. Provides communication between flights or between sub-stations and airlines. The VHF communication system provides flight attendants with auditory and eye contact information. The VHF communication set up often used for communication between craft and between planes and train stations. VHF transmitter is decipherable at eleven thousand eight hundred megahertz to 136.990-Megahertz VHF radio is employed to transmit and receive auditory communication. The VHF communication system operates at eleven thousand eight hundred megahertz to 136.990 megahertz these eight.33 kilocycle per the second area is simply on the market for these frequency ranges:

•           118:000 to 121.400

•           121.600 to 123.050

•           123.150 to 136.475

The VHF communication system has these components:

·         Radio Control Board

·         VHF Transceiver, VHF Antenna.

Working

VHF verbal exchange structures are the maximum substantially used for preserving contact among floor and aircraft. This employs "Line of Sight" transmission, which interprets to a lot of about thirty miles for an aircraft running at ten hundred ft above the floor, or approximately a hundred thirty-5 miles with an aircraft running at ten hundred ft.