Mercy San Juan Hospital frequencies
Mercy San Juan Hospital (4CL5) in Carmichael, CA has no control tower, so nobody is sequencing traffic here — you announce your own position on 123.05. Every frequency below is in the order you tune it. · Open on the map
All of Mercy San Juan Hospital — runways, frequencies, charts and live weatherTaxi & takeoff
- UNICOM 123.05
- 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.
What to say on 123.05
Nobody is sequencing traffic at 4CL5, 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 — 123.05 is not unique to Mercy San Juan Hospital.
- Inbound, 10 miles out
Mercy San Juan Hospital traffic, Skyhawk one two three four five, one zero miles south, inbound landing, Mercy San Juan Hospital.
- Entering the pattern
Mercy San Juan Hospital traffic, Skyhawk one two three four five, entering left downwind , Mercy San Juan Hospital.
- Before taking the runway
Mercy San Juan Hospital traffic, Skyhawk one two three four five, departing , Mercy San Juan Hospital.
Pattern direction is not always left here — check the 4CL5 traffic pattern before you announce a leg. The Chart Supplement is authoritative if 4CL5 publishes a call name that differs from the airport's. Full guidance →
Every 4CL5 frequency, as one table
| UNICOM | 123.05 |
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Frequently asked
What is the CTAF at 4CL5?
Mercy San Juan Hospital is non towered. The common traffic advisory frequency is 123.05 — announce your position and intentions on entry and on each leg of the pattern.
More about 4CL5
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Something here wrong or out of date?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.