Listen up: CAA announce changes to airspace squawks

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There will be new listening-out codes for Liverpool, Southend and Brize Norton, changes to Gatwick, Stansted and Southampton codes while the London City code will be renamed

The ever-popular listening-out squawks, which help general aviation pilots steer safely clear of controlled airspace and are officially known as Frequency Monitoring Secondary Surveillance Radar (SSR) codes, are today being updated.

The UK Civil Aviation Authority (CAA) has announced the introduction of a number of new codes, as well as some changes to existing ones.

A listening-out squawk dialled into an aircraft’s transponder enables an air traffic controller to alert a pilot if the aircraft looks likely to infringe an airport control zone, providing the pilot is listening on the correct radio frequency. Once clear of the area the pilot can reset the transponder code.

From 14 September 2017, the following new codes, and associated frequencies, have become operational:

• Liverpool – Squawk 5060 on frequency 119.850 MHz

• Brize Norton – Squawk 3727 on frequency 119.000 MHz

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• Southend – Squawk 5050 on frequency 130.775 MHz

Additionally, these changes will also take effect on the same day:

• Southampton changes from 0011 to 7011 (frequency remains 120.225 MHz)

• Bournemouth assumes sole use of 0011 on frequency 119.475 MHz

• Luton assumes sole use of 0013 on frequency 129.550 MHz

• Stansted changes from 0013 to 7013 (frequency remains 120.625 MHz)

• Gatwick changes from 0012 to 7012 (frequency remains 126.825 MHz)

• London City becomes Thames using 0012 (frequency remains 132.700 MHz)

An updated chart containing all the changes to listening-out squawks is available for download.

A combined listening squawk and LARS card is also available to print and download

For further information visit @UK_CAA or their website

Follow the Airspace & Safety Initiative on @airspacesafety

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