Commonwealth legislation

AD/RAD/53 - Australian Domestic Distance Measuring Equipment

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

1/10 complexity

What this does

Orders aircraft owners and operators to remove or disable Australian Domestic Distance Measuring Equipment (DME-A) — a specific type of radio navigation system — before 1 January 1996.

Who it affects

Anyone operating aircraft fitted with DME-A equipment, which uses the 200 MHz frequency band to calculate distance from ground-based radio beacons.

Why it matters

The ground stations that DME-A relies on were being switched off progressively from 7 December 1995, meaning the equipment would provide unreliable or false navigation data.
The Australian government withdrew the 200 MHz band from aeronautical use entirely after 31 December 1995; any airborne DME-A systems left active would have generated harmful radio interference for other services.
This directive prevents unsafe reliance on defunct navigation aids and protects the radio spectrum from interference.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/RAD/53 - Australian Domestic Distance Measuring Equipment.

AD/RAD/53 - Australian Domestic Distance Measuring Equipment

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Radio Communication and Navigation Equipment

AD/RAD/53 Australian Domestic Distance Measuring Equipment

Applicability: All Australian Domestic Distance Measuring Equipment (DME-A).

Requirement: Either remove the system from the aircraft or disable the system to prevent its operation.

Compliance: Prior to 1 January 1996.

4/95

Background: DME-A operates in the 200 MHz band and this band will not be available for use by aeronautical navigation services after 31 December 1995.

DME-A ground beacons will not provide a reliable service after 7 December 1995 and will be progressively decommissioned from that date.

Compliance with this Directive will prevent airborne DME-A systems generating radio interference in the 200 MHz band.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.