Bristol to get 'listening out' squawk
The ever-popular squawk codes have played an instrumental role in reducing the number of airspace infringements by general aviation aircraft at the UK’s largest airports.
Officially known as Frequency Monitoring Codes, a listening out squawk enables air traffic controllers to alert a pilot to their close proximity to the boundaries of controlled airspace - if their aircraft looks likely to infringe. Any aircraft fitted with a Mode A/C or Mode S transponder can use these codes.
By entering the relevant four-digit code into the transponder and listening to the published radio frequency, a pilot signifies to air traffic control that he/she is actively monitoring radio transmissions on that frequency and their aircraft position is visible on radar.
The Bristol listening out squawk code will be 5077 and will become operational on 28 May 2015 and the radio frequency to monitor will be 125.650MHz. It is recommended that pilots flying anywhere within the vicinity of Bristol Airport use the code.
An Information Notice with more details has been published today by the CAA. An updated leaflet containing the new Bristol code will soon be available from the Airspace & Safety Initiative (ASI) website.
The full list of frequency monitoring codes/ radio frequencies is:
Bristol 5077 125.650 MHz
Birmingham 0010 118.050 MHz
Southampton/ Bournemouth 0011 120.225 MHz (SOU)
119.475 MHz (BOH)
Gatwick/London City 0012 126.825 MHz(LGW)
132.700 MHz(LCY)
Luton/ Stansted 0013 129.550 MHz(LTN)
120.635 MHz (STD)
Edinburgh 0440 121.200MHz
Glasgow 2620 119.100MHz
Leeds Bradford 2672 133.125 MHz
East Midlands 4572 134.175 MHz
Farnborough 4572 125.250MHz
Doncaster Sheffield 6170 126.225 MHz
Belfast Aldergrove 7045 128.500 MHz
Manchester 7366 118.575 MHz
ASI is a joint CAA, NATS, AOA, GA and MoD effort to investigate and tackle the major safety risks in UK airspace: www.airspacesafety.com
Follow the Airspace & Safety Initiative on Twitter @airspacesafety