North Chicago, IL

Whelen WPS-2910 w/ Visulert & FS MOD 4016 - Located at Rosalind Franklin University. Modulator belongs to and is operated by the university, Whelen belongs to and is operated by North Chicago. Both are active and test on the first Tuesday at 10AM. Whelen doesn't always work and MOD sometimes tests late. Photos taken 10/3/23, copyright Christopher Aylward.