Mansfield Municipal Airport frequencies
Mansfield Municipal Airport (1B9) in Mansfield, MA has no control tower, so nobody is sequencing traffic here — you announce your own position on 123.0. Every frequency below is in the order you tune it. · Open on the map
All of Mansfield Municipal Airport — runways, frequencies, charts and live weatherBefore taxi Mansfield
- ASOS/AWOS 118.675
- An automated weather station reading the field conditions aloud — wind, visibility, ceiling, temperature and altimeter. It replaces ATIS at a field with no controller to record one. Get the altimeter setting before you descend below the transition altitude.
Taxi & takeoff Mansfield
- CTAF 123.0
- 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 123.0
- 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.
Departure & arrival Boston
- App/Dep 124.1
- 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
- Flight service 122.5
- Flight Service handles briefings, flight plans and en route advisories, reached here through a remote outlet. Open and close VFR flight plans, and get updated weather in the air. 1-800-WX-BRIEF reaches the same specialists from the ground.
What to say on 123.0
Nobody is sequencing traffic at 1B9, so every call is you telling other aircraft where you are. Open and close with the field name so a pilot tuned to a shared frequency knows which airport you mean — 123.0 is not unique to Mansfield Municipal Airport.
- Inbound, 10 miles out
Mansfield traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 04, Mansfield.
- Entering the pattern
Mansfield traffic, Skyhawk one two three four five, entering left downwind runway 04, Mansfield.
- Before taking the runway
Mansfield traffic, Skyhawk one two three four five, departing runway 04, Mansfield.
Pattern direction is not always left here — check the 1B9 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 1B9 publishes a call name that differs from the airport's. Full guidance →
By procedure & sector (3 more)
| 120.6 | WOONS STAR |
|---|---|
| 263.1 | WOONS STAR |
| 343.6 | DEP/P |
Every 1B9 frequency, as one table
| ASOS/AWOS | 118.675 |
|---|---|
| CTAF | 123.0 |
| UNICOM | 123.0 |
| Flight service | 122.5 |
| App/Dep | 124.1 |
Frequently asked
What is the CTAF at 1B9?
Mansfield Municipal Airport is non towered. The common traffic advisory frequency is 123.0 — announce your position and intentions on entry and on each leg of the pattern.
What is the ASOS/AWOS frequency at 1B9?
ASOS/AWOS at Mansfield Municipal Airport is 118.675. It is an automated broadcast, so there is no letter to report — just take the altimeter setting and wind.
What is the approach frequency for 1B9?
App/Dep for Mansfield Municipal Airport is 124.1, working as "Boston". Call inbound for flight following or to begin an instrument approach.
More about 1B9
Frequencies from FAA NASR. For planning and education only; always verify against official sources.