Martin State Airport frequencies
Martin State Airport (MTN · KMTN) in Baltimore, MD is a towered field, staffed 0600-2200. Every frequency below is in the order you tune it, from the first call to the handoff on climb out. · Open on the map
All of Martin State Airport — runways, frequencies, charts and live weatherWhen the KMTN tower is closed
The tower is staffed 0600-2200. Outside those hours Martin State Airport has no operating control tower: it becomes a self announce field on 121.3, and separation from other traffic is yours, not a controller's. Report your position and intentions on entry and on each leg of the pattern.
Runway lighting is often pilot controlled once the tower closes — check the KMTN airport page for the click sequence, and what to say on the radio.
Before taxi Martin
- ATIS 124.925
- A recorded loop of the field's weather, active runway and any notices, updated hourly or whenever conditions change. Listen before your first call, and tell the controller which letter you have so they do not read it to you again.
Taxi & takeoff Martin
- Ground 121.8
- Ground control owns every taxiway and inactive runway on the field. Call for taxi with your position and destination on the field. You need an explicit clearance to cross any runway, including one that is not in use.
- Tower 121.3
- Tower owns the active runways and the surrounding surface area. Call before entering the surface area inbound, and hold short until you are cleared to take off or to cross.
Departure & arrival Potomac
- App/Dep 119.0, 119.7 (TERPZ departures)
- One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.
Also
- CTAF 121.3
- The common frequency pilots use to announce themselves to each other at a field with no operating control tower. Nobody is controlling traffic — you are self announcing. Report your position and intentions on entry and on each leg of the pattern, and listen well before you transmit.
- UNICOM 122.95
- A ground station run by the FBO rather than the FAA, for fuel, parking and airport services. Use it for services. Where the field has no separate CTAF, the same frequency doubles as the advisory frequency.
- Emergency 121.5
- 121.5 is the international emergency and distress frequency, monitored continuously. Declare on it if you are in trouble, and monitor it as a second radio when you have one free.
By procedure & sector (18 more)
| 119.7 | TERPZ DP |
|---|---|
| 125.525 | TRISH STAR |
| 126.825 | WESTMINSTER STAR (10000 FT & BLW) |
| 128.35 | RAVNN STAR |
| 133.75 | MIIDY STAR |
| 133.85 | ANTHM STAR, WESTMINSTER STAR (11000 FT & ABV) |
| 139.6 | COMD POST (175 WG) |
| 239.025 | WESTMINSTER STAR (10000 FT & BLW) |
| 243.0 | EMERG |
| 253.4 | GND/P |
| 254.25 | ANTHM STAR, WESTMINSTER STAR (11000 FT & ABV) |
| 254.35 | MIIDY STAR |
| 254.425 | LCL/P |
| 270.275 | RAVNN STAR |
| 275.7 | COMD POST (175 WG) |
| 282.275 | APCH/P DEP/P |
| 290.475 | APCH/S DEP/S, TERPZ DP |
| 291.625 | TRISH STAR |
Every KMTN frequency, as one table
| ATIS | 124.925 |
|---|---|
| Ground | 121.8 |
| Tower | 121.3 |
| CTAF | 121.3 |
| UNICOM | 122.95 |
| Emergency | 121.5 |
| App/Dep | 119.0 |
| App/Dep | 119.7 · TERPZ departures |
Frequently asked
What is the tower frequency at KMTN?
Martin State Airport tower is 121.3, calling "Martin Tower". The tower is staffed 0600-2200.
What frequency do I use at KMTN when the tower is closed?
Outside 0600-2200, Martin State Airport has no operating control tower and becomes a self announce field. Use 121.3 as the CTAF and report your position and intentions — there is nobody to clear you, so separation is yours.
What is the ground frequency at KMTN?
Ground control at Martin State Airport is 121.8. You need an explicit clearance from ground to cross any runway while taxiing, including one that is not in use.
What is the ATIS frequency at KMTN?
ATIS at Martin State Airport is 124.925. Listen before your first call and report the letter you have.
What is the approach frequency for KMTN?
App/Dep for Martin State Airport is 119.0, working as "Potomac". Call inbound for flight following or to begin an instrument approach.
More about KMTN
Frequencies from FAA NASR. For planning and education only; always verify against official sources.