Department of Public Safety has migrated to the Iowa Statewide Interoperable Communications System (ISICS)
https://www.radioreference.com/apps/db/?sid=8734
Frequencies
Department of Public Safety
Albia
Atlantic
Beaverdale
Belmond
Blairsburg
Brooklyn
Cedar Falls
Cedar Rapids
Denison
Des Moines
Fairfield
Glenwood
Gunder
Harpers Ferry
Holy Cross
Laurel
Lourdes
Maquoketa
Mason City
Matlock
Merrill
Moorhead
Muscatine
New Market
Saint Mary's
Springbrook
Storm Lake
Terrill
Underwood
Van Wert
Department of Public Safety
Tactical/Simplex Channels
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|
| 155.505 | KQ7633 | M | 293 NAC | ISP Unk ENC | Unknown Encrypted | P25E | Law Talk |
Iowa State Capital Police
VHF/UHF linked together
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|
| 155.670 | KIT886 | RM | 146.2 PL | IACapitalPDv | Iowa State Capital Police | FMN | Law Dispatch |
| 453.625 | KIT886 | RM | 146.2 PL | IACaptialPDu | Iowa State Capital Police | FMN | Law Dispatch |
UHF Handheld Plan
The Iowa State Patrol uses VHF Hi-Band for their wide area radio coverage. Each patrol car is equipped with a low powered(2 Watts) UHF repeater system that sends the audio from their VHF patrol car radio to their UHF handheld. The officers can also use the UHF handheld to communicate back to dispatch or other law enforcement personal. The VHF radio can be channel steered by the UHF handheld via PL tones.
Car to handheld radio communications PL tone will always be the same(151.4 PL). Handheld to car communications PL tone may differ depending what channel the officer is using on his VHF radio.
The UHF handheld radios are also programmed with two UHF duplex frequencies for use with the statewide portable repeaters setup for various events, ie. . . Iowa State Fair
It is also possible during events where only state patrol officers are the sole officers in the event, UHF simplex frequencies will be used if all communications can be heard by all. ie. . . Speed enforcement by airplane
It is not necessary to monitor 453.625/458.625, as this frequency is paired to work with only with the VHF car radio for the area wide communications. UHF Handheld channels F7-F10 are used separate from the VHF stuff and is recommend to monitor.
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|
| 453.625 | KQ7633 | M | 151.4 PL | ISP Extender | ISP Mobile Extender - Car to Handheld (F1-F6 on UHF radio) | FMN | Law Talk |
| 458.625 | KQ7633 | M | 4C9 NAC | ISP Extender | ISP Mobile Extender | P25 | Law Talk |
| 458.950 | WNLW767 | M | 127.3 PL | ISP UHF F7 | Air-to-Car Speed Enforcement (F7 on UHF Handheld) | FMN | Law Tac |
| 458.700 | WNLW767 | M | 127.3 PL | ISP UHF F8 | Air-to-Car Speed Enforcement (F8 on UHF Handheld) | FMN | Law Tac |
| 453.950 | WNLW767 | RM | ISP UHF F9 | Special Events - Portable Repeater (F9 on UHF Handheld) | FMN | Law Tac | |
| 453.700 | WNLW767 | RM | ISP UHF F10 | Special Events - Portable Repeater (F10 on UHF Handheld) | FMN | Law Tac |