Walker County (AL)
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Walker County Fire
Most Walker County fire departments are dispatched by 911 Control over three simulcast repeaters at different sites in the county. All three repeaters transmit on 159.39000 MHz with a 167.9 PL, but each uses a unique receive tone on 151.28000. A courtesy tone (or lack thereof) following each transmission indicates which site is in use.
| Site | Tone In | Courtesy Tone |
|---|---|---|
| West | 156.7 PL | none |
| South | 167.9 PL | 1750 Hz (high) |
| North | 179.9 PL | 1000 Hz (low) |
Automatic station identification transmissions begin with alternating 880 and 480 Hz tones. A prerecorded voice ID of "WQQG392" is followed by "north", "west" or "south", indicating which transmitter is identifying. The courtesy tone for that site is sent at the end of the transmission. Certain repeater site conditions can also trigger prerecorded voic alarms such as "door open", "door closed", "generator on" and "generator off"; these announcements have the same format as the IDs, but with the condition in place of the call sign.
Tone Outs
Each fire department dispatched on 159.39000 has a unique A tone; the B tone 788.5 Hz is common to all. County-wide paging is achieved with a single eight-second 788.5 Hz B tone.
| Department | Tone A (Hz) | Tone B (Hz) |
|---|---|---|
| Argo | 349.0 | 788.5 |
| Curry | 457.9 | 788.5 |
| Jasper | 539.0 | 788.5 |
Jasper
Jasper Police Department
- As of 9/24, it appears that P25 Digital is only in use. Dispatch is encrypted, officers are in the clear.
- 155.550 153.920 KIC830 RM 110.9 PL (103.5 input) Jasper Police A Police: Dispatch (No longer in use?) FMN Deprecated 9/4/24
Jasper Fire Rescue 911 Control has historically dispatched Jasper Fire Rescue over the main Walker County fire channel, after which on-scene communications would take place on Jasper Fire's own channel. Currently all of the department's communications, including paging and dispatch, utilize 154.355 (103.5 PL). Group paging with a single eight-second 330.5 Hz B tone.
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