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Iridium Satellite Frequency Bands: Operating Frequencies Explained

satellite communication iridium satellite frequency band l band ka band

This page describes Iridium Satellite operating frequencies. It mentions Iridium satellite frequency between two iridium satellites, between iridium terminal and iridium satellite, and between gateway or earth station and iridium satellite. The Iridium satellite frequency includes L band and Ka bands.

Introduction:

The Iridium satellite system consists of 66 low earth orbiting satellites, iridium satellite phone terminals, and satellite earth stations or gateways. This is shown in the figure below.

Iridium Satellite Operating Frequencies

The table below mentions all the frequencies used between these Iridium satellite systems.

Iridium Satellite FrequencyDescription
Between Two Iridium Satellites23.18 to 23.38 GHz
Between Iridium Phone Terminal and SatelliteL band in the range from 1621.35 to 1626.5 MHz used for both uplink and downlink
From Earth Station to Iridium Satellite (Uplink)29.1 to 29.3 GHz
From Iridium Satellite to Earth Station (Downlink)19.4 to 19.6 GHz