What is the CTAF frequency at 55G?

Arnold Field's CTAF frequency is 122.8.

Arnold Field frequencies

Radio frequencies for Arnold Field (55G) in Croswell, MI — tower, ground, ATIS, CTAF, and approach/departure for your radio setup.

CTAF	122.8
UNICOM	122.8

Frequencies from FAA NASR. For planning and education only; always verify against official sources.