If your are looking for the Iowa, Chicago, & Eastern or Iowa Interstate Railroad frequencies, here they are
IAIS: 161.22000 (Main Frequency)
160.23000
160.30500
160.32000
160.68000
161.61000
IC&E:
160.77000mhz (AAR 44); Nahant Yard, Davenport to Kansas City, MO
Mason City - Spencer
Mason City - Austin, MN
Austin, MN - Wells, MN
161.370 mhz (AAR 84); Sabula - River Jct.
West Davenport Yard Industry Job
Marquette - Mason City
161.430mhz (AAR 88); All Yards
160.530mhz (AAR 28); West Davenport Yard
161.085mhz (AAR 65) Savanna, IL - Nahant Yard, Davenport
IAIS: 161.22000 (Main Frequency)
160.23000
160.30500
160.32000
160.68000
161.61000
IC&E:
160.77000mhz (AAR 44); Nahant Yard, Davenport to Kansas City, MO
Mason City - Spencer
Mason City - Austin, MN
Austin, MN - Wells, MN
161.370 mhz (AAR 84); Sabula - River Jct.
West Davenport Yard Industry Job
Marquette - Mason City
161.430mhz (AAR 88); All Yards
160.530mhz (AAR 28); West Davenport Yard
161.085mhz (AAR 65) Savanna, IL - Nahant Yard, Davenport