Waterloo Regional Airport (ALO) (Black Hawk County) Scanner Frequencies and Radio Frequency Reference

Waterloo Regional Airport (ALO) (Black Hawk County)

Last Updated: October 23, 2025, 02:37 am UTC

Waterloo Approach / Departure operates from 0600-2200. Approach / Departure services between 2200-0600 provided by Chicago ARTCC

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Minneapolis Center provides Approach / Depature services when ALO Tower is closed (2000L-0600L Daily)

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
118.900	BM	CSQ	DSM APP/DEP	Approach/Departure (0600L-2000L Daily)	AM	Aircraft
126.750	BM	CSQ	DSM APP/DEP	Approach/Departure (0600L-2000L Daily)	AM	Aircraft
251.150	BM	CSQ	DSM APP/DEP	Approach/Departure (0600L-2000L Daily)	AM	Aircraft
120.650	B	CSQ	ALO ATIS	Automatic Terminal Information Service (ATIS)	AM	Aircraft
121.900	BM	CSQ	ALO - GROUND VHF	Ground	AM	Aircraft
269.100	BM	CSQ	ALO - GROUND UHF	Ground	AM	Aircraft
257.800	BM	CSQ	ALO - TOWER UHF	Tower	AM	Aircraft
125.075	BM	CSQ	ALO - TOWER/CTAF	Tower / CTAF	AM	Aircraft
122.950	BM	CSQ	ALO UNICOM	Unicom	AM	Aircraft

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
36.700	BM	CSQ	ANG OPS	Air National Guard Operations	FM	Aircraft
123.450	BM	CSQ	ANG OPS	Air National Guard Operations	AM	Aircraft
280.800	BM	CSQ	ANG OPS	Air National Guard Operations	AM	Aircraft