About Grail Police Frequencies
- 7 conventional channels use a digital mode (P25), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: North Dakota Statewide Interoperable Radio Network (SIRN 20/20): 4 talkgroups. A trunking scanner is required, and it must support the system type shown.
- To follow a trunked system, program a control channel first. For Grail, start with the Keene site of North Dakota Statewide Interoperable Radio Network (SIRN 20/20), about 14 miles away. Its control channels: 852.0625, 852.2875 MHz.
- 4 listed entries are marked encrypted. No scanner can decode encrypted audio.
McKenzie County channels that also cover Grail
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| McKenzie County Sheriff | Sheriff Keene | 151.2800 In 154.0250 | NAC 299 | P25 | WPTR224 |
| McKenzie County Sheriff | Central | 151.3550 In 156.1500 | NAC 299 | P25 | WPTR224 |
| McKenzie County Sheriff | Sheriff Sharbono | 154.8750 In 158.9380 | NAC 299 | P25 | WPTR224 |
| McKenzie County Sheriff | Sheriff Sather | 155.1900 In 159.1050 | NAC 299 | P25 | WPTR224 |
| McKenzie County Sheriff | Sheriff Grassy Butte | 155.5650 In 159.4275 | NAC 299 | P25 | WPTR224 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| McKenzie County Sheriff | McKenzie County Sheriff – Tactical Channel | 153.8125 In 150.0000 | NAC 299 | P25 | WPTR224 |
| McKenzie County Sheriff | McKenzie County Sheriff – Tactical Channel | 153.8900 In 150.0000 | NAC 299 | P25 | WPTR224 |
North Dakota Statewide Interoperable Radio Network (SIRN 20/20)
4 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| McKenzie County Sheriff | County Sheriff's Main | 27101 | 69dd | T Encrypted |
| McKenzie County Sheriff | County Sheriff's Operations | 27103 | 69df | T Encrypted |
| McKenzie County Sheriff | County Sheriff's Operations | 27104 | 69e0 | T Encrypted |
| McKenzie County Sheriff | County Sheriff's Operations | 27105 | 69e1 | T Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Grail.
Keene · North Dakota Statewide Interoperable Radio Network (SIRN 20/20)
RFSS 1 · Site 48 (hex 30) · NAC A6F · about 14 mi away
Control 852.0625, 852.2875
Voice 851.7875
Killdeer · North Dakota Statewide Interoperable Radio Network (SIRN 20/20)
RFSS 1 · Site 25 (hex 19) · NAC A68 · about 21 mi away
Control 853.4375, 853.8875
Voice 853.2125
Watford City · North Dakota Statewide Interoperable Radio Network (SIRN 20/20)
RFSS 1 · Site 51 (hex 33) · NAC A62 · about 29 mi away
Control 852.1125, 852.3375
Voice 851.8375
What do these numbers mean?
- Control channel
- The frequency your scanner listens to first. It tells the scanner where each voice call is happening, so program it before anything else.
- Voice
- The other frequencies the site uses for calls. A trunking scanner follows them automatically once it has the control channel.
- Site
- One tower location of the system. Scanners show the number in decimal or hex, so both are listed.
- RFSS (Radio Frequency Sub-System)
- A group of sites run by the same controller. Large Project 25 systems can have several.
- NAC (Network Access Code)
- A hex code the site transmits. Your scanner can use it to ignore other systems on the same frequency.
- Talkgroup
- A virtual channel on a trunked system, such as one agency’s dispatch. Programming uses the decimal or hex number, depending on your scanner.
Common questions
What frequency do the police use in Grail?
We do not have a dispatch channel listed specifically for Grail. County-level dispatch channels in the same county: McKenzie County Sheriff 151.2800 MHz (NAC 299); McKenzie County Sheriff 151.3550 MHz (NAC 299); McKenzie County Sheriff 154.8750 MHz (NAC 299); McKenzie County Sheriff 155.1900 MHz (NAC 299).