IPC-2-2-03 - Frequency Bands (Aeronautical Mobile Service)

Issue 3
August 2007

Internal Procedures Circular

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As part of their ongoing spectrum allocation activities, the Department and the ITU have allocated frequency bands for use by stations in the aeronautical mobile service. These frequency bands reflect the decisions of the ITU World Administrative Radio Conference of 2003 as well as Canada's domestic usage.

This document contains an extract from the Canadian Table of Frequency Allocations listing the frequency bands allocated to the aeronautical mobile service.

Preface

Internal Procedures Circulars are issued for the guidance of departmental staff. Although intended for internal use only, they are also available to the public. The information contained in these circulars is subject to change without notice. It is therefore suggested that interested persons consult the nearest district office of Industry Canada for additional details. While every reasonable effort has been made to ensure accuracy, no warranty is expressed or implied. As well, these circulars have no status in law.

Comments and suggestions may be directed to the following address: 

Industry Canada
Radiocommunications and
Broadcasting Regulatory Branch
300 Slater Street
Ottawa, Ontario
K1A 0C8

Attention: DOSP

E-mail: spectrum_pubs@ic.gc.ca

All Spectrum Management and Telecommunications publications are available on the following website: http://strategis.gc.ca/spectrum.

Contents

1. Intent
2. Mandate
3. Policy

1. Intent

This circular outlines frequency bands allocated to the aeronautical mobile service for the purpose of facilitating suitable frequency assignments for aircraft stations.

2. Mandate

Section 5 of the Radiocommunication Act authorizes the Minister to plan the allocation and use of the radio frequency spectrum.

3. Policy

As part of their ongoing spectrum allocation activities, the Department and the ITU have allocated frequency bands for use by stations in the aeronautical mobile service. These frequency bands reflect the decision of the ITU World Administrative Radio Conference of 2003 and Canada's domestic usage.

The following tables provide an extract from the Canadian Table of Frequency Allocations (amended February 2007) which lists frequency bands allocated to the aeronautical mobile service. Footnotes pertaining to these allocations have not been included in this extract. Primary allocation status is indicated in capital letters and secondary allocation status is indicated in normal characters.

Table 1 - Low-frequency (LF) and Medium-frequency (MF) Radiocommunications

This section applies to all frequency allocations in the range of 190 kHz to 1.8 MHz. These allocations are used primarily for radiobeacon assignments.

If a radio station licence applicant requests a frequency assignment below 3 MHz, consult the following Internal Procedures Circulars (IPC): 

• IPC-2-2-04, Aeronautical Radionavigational Aids; and
• IPC-2-0-08, Frequency Selection Procedure for Stations Operating in the High Frequency (HF) Bands.

Table 2 - High-frequency (HF) Radiocommunications

This section applies to all allocations in the band from 2.850 MHz to 23.350 MHz. All emissions are transmitted in the single-sideband suppressed carrier mode. The frequency assignments are normally for communications between aircraft and ground stations.

If a licence applicant requests an aeronautical mobile frequency assignment below 30 MHz, consult IPC-2-0-08.

Table 3 - 74 MHz to 900 MHz

This section applies to aeronautical allocations generally ranging from 74.0 MHz-900 MHz. These allocations are used primarily for aeronautical navigation and communications.

Refer to IPC-2-2-02, Frequency Selection Procedures for Aeronautical Mobile Stations Operating in the Very High Frequency (VHF) Band 117.9875-136.9875 MHz, when making assignments within this frequency band.

Table 4 - Above 1000 MHz

This section applies to aeronautical allocations generally above 1000 MHz. These allocations are used primarily for aeronautical radionavigation purposes.

Reference information can be found in IPC-2-2-04, Aeronautical Radionavigational Aids.