Key Frequencies at Prestwick

Glasgow Prestwick Airport (EGPK) uses several radio frequencies for different purposes. Understanding which frequency handles which function helps you follow the complete journey of an aircraft from arrival to departure. This lesson lists every frequency you need and explains when to listen to each one.

The Core Frequencies

Here are the primary frequencies published for EGPK:

Understanding Each Frequency

Prestwick Tower — 118.150 MHz

This is the frequency most spotters start with. Tower controls the runway and the immediate airfield. You will hear:

• Landing clearances: "Ryanair 1234, runway 12, cleared to land, wind 240 degrees 15 knots"
• Takeoff clearances: "Ryanair 5678, runway 12, cleared for takeoff, surface wind 250 degrees 12 knots"
• Circuit traffic instructions
• Go-around instructions if an approach is abandoned
• Runway crossing clearances for taxiing aircraft

Tower is active whenever the airport is open for operations. If the tower is closed (overnight), pilots use published procedures for uncontrolled operations.

Prestwick Approach — 120.550 MHz

Approach control handles aircraft as they arrive into and depart from the Prestwick area. Aircraft are typically handed from Scottish Control to Prestwick Approach when they are within roughly 30-40 nautical miles of the airport. You will hear:

• Radar vectors to the final approach: "Ryanair 1234, turn right heading 090, descend altitude 3000 feet, QNH 1015"
• Approach clearances: "Ryanair 1234, cleared ILS approach runway 12"
• Departing aircraft being given climb instructions before handoff to Scottish Control
• Holds and delays if traffic is busy

Approach is where you hear the tactical side of ATC — the sequencing and spacing that keeps aircraft safely separated.

Prestwick Radar — 129.450 MHz

Radar provides additional radar-based services in the Prestwick area. This frequency may handle traffic that does not need the full approach service, or may be used to split workload during busy periods.

ATIS — 121.125 MHz

The Automatic Terminal Information Service is a continuously broadcast recorded message that gives pilots essential information before they contact ATC. Each ATIS broadcast is assigned a letter identifier (Alpha, Bravo, Charlie, etc.) and is updated whenever conditions change. A typical ATIS broadcast includes:

• The information identifier letter
• Time of observation
• Runway in use
• Surface wind direction and speed
• Visibility
• Weather phenomena (rain, fog, cloud)
• Temperature and dew point
• QNH (pressure setting)
• Any relevant NOTAMs (notices to airmen)

An example ATIS message at Prestwick might sound like:

"Prestwick information Alpha, time 1250, runway 12 in use, surface wind 240 degrees 15 knots, visibility greater than 10 kilometres, few clouds at 4000 feet, temperature 12, dew point 6, QNH 1015, acknowledge information Alpha on first contact."

Pilots listen to ATIS before calling Approach or Tower, and confirm which letter they have received. This saves time on busy frequencies.

Emergency — 121.500 MHz

The international distress frequency is monitored continuously by all ATC units. You will most commonly hear:

• ELT chirps — false alarms from Emergency Locator Transmitters, usually triggered accidentally during maintenance or rough handling
• Guard calls — controllers broadcasting on 121.5 to contact aircraft that have strayed off their assigned frequency
• Genuine emergencies — rare, but this is where MAYDAY and PAN PAN calls are made

Most of the time, 121.500 is quiet or has the occasional ELT warble. But it is worth monitoring because when something does happen, you hear it in real time.

Scottish Control Frequencies

Because the NATS Prestwick Centre is located adjacent to the airport, you can also hear Scottish Area Control (ScACC) frequencies. These handle en-route traffic at higher altitudes across Scotland and Northern England. Key sectors relevant to Prestwick include:

These frequencies carry a steady stream of traffic at cruising altitude — airlines transiting Scottish airspace on their way between Europe and the Atlantic.

When to Listen

Different frequencies are busiest at different times:

• Morning (0600-0900) — ATIS updates begin, first departures. Tower becomes active
• Mid-morning to afternoon (0900-1600) — busiest period for scheduled and cargo traffic. Approach and Tower both active
• Late afternoon (1600-1900) — afternoon Ryanair rotations, cargo operations
• Evening and overnight — quiet on local frequencies, but Scottish Control sectors remain busy with overflights

Tips for Frequency Monitoring

• Start with Tower (118.150) — this gives the clearest picture of what is happening on the runway in front of you
• Switch to Approach (120.550) when you want to hear inbound traffic being sequenced — you will know what is coming 10-15 minutes before it appears
• Check ATIS (121.125) at the start of your visit to know which runway is in use and the current weather
• If you have a scanner with multiple memory banks, programme all the Prestwick frequencies into one bank so you can scan across them
• Cross-reference with ADS-B tracking — use Flightradar24 or ADS-B Exchange on your phone to match callsigns you hear to aircraft on the map