About Porcupine Police Frequencies
- 3 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 3 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 Porcupine, start with the Porcupine Ridge site of South Dakota State Radio System, about 12 miles away. Its control channels: 155.46, 158.55, 159.51 MHz.
Oglala Lakota County channels that also cover Porcupine
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Pine Ridge Operations | Pine Ridge Tribe | 168.1000 | FM | — | |
| Pine Ridge Operations | Pine Ridge Tribal Police – Mobile Extenders | 460.2750 | CSQ | FM | WPYT284 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Pine Ridge Operations | Pine Ridge Adult Offenders Facility | 155.7900 | 125 DPL | FMN | WQFH449 |
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Oglala Lakota County Sheriff | Oglala-Pine Ridge Police | 88 | 58 | D |
| Oglala Lakota County Sheriff | Oglala Sioux Tribal Police Tactical | 1668 | 684 | D |
| Oglala Lakota County Sheriff | Oglala Sioux Tribal Police Tactical | 1674 | 68a | D |
Nearest trunked radio sites
Distances are measured from the center of Porcupine.
Porcupine Ridge · South Dakota State Radio System
RFSS 1 · Site 49 (hex 31) · NAC 470 · about 12 mi away
Control 155.46, 158.55, 159.51
Voice 155.625, 156.12, 159.975
Pine Ridge · South Dakota State Radio System
RFSS 1 · Site 53 (hex 35) · NAC 470 · about 21 mi away
Control 156, 156.165
Voice 157.5, 159.36
Long Valley · South Dakota State Radio System
RFSS 1 · Site 26 (hex 1A) · NAC 470 · about 41 mi away
Control 159.93, 160.2
Voice 156.195, 159.465
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.