Grafton County Police Departments
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- Grafton County Sheriff's Office (GCSO) opperates multiple repeaters all having an output on 154.770, but having different NAC's to each.
- GCSO now opperates in APCO 25 Digital mode. All their primary repeaters (Cannon Mt, Tenney Mt, Moose Mt) still have analog technology as well with a PL of 136.5. Rarely you will hear units using analog if they are in a P25 "dead" spot. GCSO also operates on another repeater frequency (output 158.835). This is a Motorola Quantar Repeater located on Mt. Agassiz in Bethlehem. It is capable of P25 and analog transmissions. The Alpha Tag for this channel is: "Grafton-North". Franconia, Sugar Hill, and Bethlehem PD share this channel.
- GCSO dispatches sheriff's deputies and officers of the various communities as noted in Grafton County Police Departments
- Plymouth Police Dispatch PD's in there area using P-25 Digital, an example of an ID would be Plymouth Police Chief = 15-01 "Fifteen Oh One"
- Grafton County Sheriff's Office (GCSO) also dispatches many of the town PD's in Grafton County. GCSO repeater system can still be used in Analog mode in the event P25 problems.
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County Frequency Information
| Dispatch Centers / Repeaters | Frequency | Type | Tone | Notes | Confirmation/Reconfirmation |
|---|---|---|---|---|---|
| GSCO Headquarters | 154.7700 | R | N117 | Repeaters in Haverhill, Plymouth and Waterville Valley | 2024.09.29 GraniteScanner |
| Bethlehem | 158.8350 | R | N727 | GCSO North | 2025.07.03 GraniteScanner |
| Plymouth | 154.7550 | R | N417 | South RCC | 2025.05.25 GraniteScanner |
| Littleton | 155.3100 | R | N217 | North RCC | 2025.07.03 GraniteScanner |
| Lebanon | 155.7075 | NAC ??? | West RCC |
Towns Patrolled by NHSP
| Town |
|---|
| Benton |
| Dorchester |
| Ellsworth |
| Lyman |
Towns Dispatched on GCSO frequencies above
| Department | Frequency | Unit ID's | Confirmation/Reconfirmation |
|---|---|---|---|
| Alexandria | 154.7700 | Alexandria-xx | |
| Bath | 154.7700 | Bath-xx | |
| Bethlehem | 158.8350 | Bethlehem-xx | |
| Bethlehem | 158.8350 | Bethlehem-xx | |
| Franconia | 158.8350 | Franconia-xx | |
| Grafton | 154.7700 | Grafton-xx | |
| Groton | 154.7700 | ||
| Monroe | 154.7700 | ||
| Orford | 154.7700 | 700-X | |
| Orange | 154.7700 | ||
| Piermont | 154.7700 | 800-X | |
| Sugar Hill | 154.7700 | Sugar Hill-xx | |
| Thornton | 154.7700 | Thornton-xx | |
| Waterville Valley | 154.7700 | 38-X and Waterville-xx | |
| Wentworth | 154.7700 | Wentworth-xx |
Towns Dispatched by Plymouth
Department Frequency Information
| Department | Unit ID's | Confirmation/Reconfirmation |
|---|---|---|
| Ashland | Ashland-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Bridgewater | Bridgewater-XX | 07.22.2025 GraniteScanner (SNE Submitter) |
| Campton | Campton-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Hebron | Hebron-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Holderness | Holderness-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Plymouth | Plymouth-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Plymouth State College | 07.22.2025 GraniteScanner (SNE Submitter) | |
| Rumney | Rumney-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Thornton | Thornton-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
| Warren | Warren-xx | 07.22.2025 GraniteScanner (SNE Submitter) |
Towns with local frequencies or self dispatch
| Department | Frequency | Type | Tone | Unit ID's | Notes | Confirmation/Reconfirmation |
|---|---|---|---|---|---|---|
| Alexandria | 154.4075 | R | N88A | DB: Franklin | 2019.10.21 ecps92 | |
| Bristol | 154.7850 | R | N527 | "Bristol-x" | DB: Self | 2024.07.28 GraniteScanner (SNE Submitter) |
| Bristol | 154.4075 | R | N88A | Talkaround? | 2024.06.09 n1zyy (SNE Submitter) | |
| Bristol | 154.3775 | R | N417 | 2024.06.09 n1zyy (SNE Submitter) | ||
| Canaan | 155.5950 | S | 141.3 | DB:UVRDC | 2021.04.28 ErrolW | |
| Enfield | 155.5950 | R | 141.3 | DB: UVRDC | 2025.03.22 schwab | |
| Hanover | 155.5950 | S | 141.3 | DB: Self | 2022.10.16 W1KNE | |
| Hanover | 155.5950 | S | N517 | DB:Self | 2014.08.20 Alarmroom | |
| Haverhill | 155.0400 | R | N117 | Haverhill-xx | DB: GCSO | 2021.12.27 JBolduc |
| Lebanon | 155.2500 | R | N517 | DB: Self | 2022.10.16 W1KNE | |
| Lincoln | 155.1900 | R | N617 | L-x | DB: Lincoln Base | 2025.07.03 GraniteScanner |
| Lisbon | 154.9800 | R | N117 | Lisbon-xx | DB: GCSO | 2021.12.10 JBolduc |
| Lyme | 155.5950 | S | 219-X | DB: UVRDC | 2021.04.28 ErrolW | |
| Woodstock | 155.1900 | R | N617 | Woodstock-x | DB: Lincoln Base | 2020.08.02 schwab |
| Woodstock | 155.1900 | R | 146.2 | Woodstock-x | Mixed Mode - Analog and P25 Used | 2020.08.02 schwab |
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