Griffith-Merrillville frequencies
Griffith-Merrillville (05C) in Griffith, IN 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 Griffith-Merrillville — runways, frequencies, charts and live weatherTaxi & takeoff
- 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 Chicago
- App/Dep 133.1 (LUCIT arrivals)
- One radar controller working both arrivals and departures — normal at a smaller TRACON. The same frequency takes your climb out and your inbound call.
What to say on 123.0
Nobody is sequencing traffic at 05C, 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 Griffith-Merrillville.
- Inbound, 10 miles out
Griffith-Merrillville traffic, Skyhawk one two three four five, one zero miles south, inbound landing runway 08, Griffith-Merrillville.
- Entering the pattern
Griffith-Merrillville traffic, Skyhawk one two three four five, entering left downwind runway 08, Griffith-Merrillville.
- Before taking the runway
Griffith-Merrillville traffic, Skyhawk one two three four five, departing runway 08, Griffith-Merrillville.
Pattern direction is not always left here — check the 05C traffic pattern before you announce a leg. The Chart Supplement is authoritative if 05C publishes a call name that differs from the airport's. Full guidance →
By procedure & sector (2 more)
| 133.1 | LUCIT STAR |
|---|---|
| 285.6 | APCH/P DEP/P, LUCIT STAR |
Every 05C frequency, as one table
| CTAF | 123.0 |
|---|---|
| UNICOM | 123.0 |
| App/Dep | 133.1 · LUCIT arrivals |
Frequently asked
What is the CTAF at 05C?
Griffith-Merrillville 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 approach frequency for 05C?
App/Dep for Griffith-Merrillville is 133.1, working as "Chicago" (LUCIT arrivals). Call inbound for flight following or to begin an instrument approach.
More about 05C
Frequencies from FAA NASR. For planning and education only; always verify against official sources.
Something here wrong or out of date? Report a data problem.