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United States Forest Service (CA)

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Angeles National Forest (ANF - Forest #01)

Radio System

Channel Lineup

Most radios on the forest have 9 frequencies in common: ANF Channels 1 and 2 (Forest Net), ANF Channels 3 and 4 (Admin Net), two National Air to Ground frequencies and NIFC tactical channels 1 through 3. Each ranger district, and crews within each ranger district, may have different channel lineups, but they will usually have these nine in common. The variations between ranger districts and crews involve frequencies belonging to other agencies such as Los Angeles County Fire, San Bernardino County Fire, CalFIRE, and the Bureau of Land Management, as well as frequencies of adjacent National Forests. The agencies and areas that each ranger district interact with for mutual aid are different for each district.

ANF Channels 1 and 2 are called "Forest Net" and are used primarily for fire and emergency traffic. ANF Channels 3 and 4 are called "Admin Net" and are used for non-fire communications such as recreation, vegetation management, soils, road maintenance, engineering, wildlife, utility systems, building maintenance and grazing management . Channels 1 and 3 are simplex frequencies and channels 2 and 4 are repeated.

When users transmit on channels 1 and 3 using tone 8 (103.5 Hz) their transmission can be received by dispatch on the forest's 9 microwave linked remote bases. These remote bases are linked to dispatch located at Fox Field near Lancaster and the Forest Supervisor's Office in Arcadia. Most of these remote bases are co-located with repeaters and some are not. When someone communicates to dispatch on these channels it is not picked up by a repeater and receiving them requires being close enough to receive simplex traffic. On the other hand, if users transmit on channels 2 and 4 , the tone in use must match a repeater within range or their transmission will not be heard.

The 9 remote bases are located at: Fox Field (dispatch office), Arcadia (Forest Supervisor's Office), Frazier Peak, Warm Springs, Magic Mountain, Mt. Lukens, Blue Ridge, Johnstone Peak and Santiago Peak. Those remote bases that are not co-located with a repeater are: Fox Field, Arcadia, Warm Springs and Blue Ridge.

Intra-crew and communications on the Angeles NF take place on the Pacific Southwest Region's (R5) (all of California with the exception of a few small areas) project net of 168.6625 or on National Crew Net 163.7125. Tactical communications on the initial attack phase of fires is still being conducted on NIFC Tacticals 1-3. These channels as well as NIFC Tacs 5, 6 and 7 may not be used for intra-crew communications. The federal wildland fire and land management agencies (National Park Service, U.S. Forest Service, Bureau of Land Management and the U.S. Fish and Wildlife Service) are beginning to phase out the use of the NIFC tacticals for initial attack. The BLM and U.S. Forest Service are getting frequency allocations so that each Forest Service region and each BLM State Office so that each have a least three unique tactical frequencies separate from the six NIFC tacticals. The future use of the NIFC frequencies will be reserved for use on "National Fires." only. These are fires where a National Type I or Type II incident management team is in command. Region 5 has had three regional tactical frequencies for more than 20 years and are used when several large fires burn close to each other and the six NIFC frequencies are all being used to capacity. This occurs with some regularity in Region 5 as 40-50% of the fire workload of the U.S. Forest Service is in this region. Perhaps additional tacticals are in the works for R5.


Angeles National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
1 8 172.3750 172.3750 ANF 1 Frst Dir Forest Net Direct
2 1-14 172.3750 169.9500 ANF 2 Frst Rpt Forest Net Repeat
3 8 164.9375 164.9375 ANF 3 Adm Dir Admin Direct
4 1-14 164.9375 170.0750 ANF 4 Adm Rpt Admin Repeat
5 169.1125 169.1125 ANF 5 A/G 59 Southern California Primary Air to Ground National AG 59
6 168.4875 168.4875 ANF 6 A/G 53 Southern California Secondary Air to Ground National AG 53
7 168.0500 168.0500 ANF 7 N TAC 1 NIFC TAC 1
8 168.2000 168.2000 ANF 8 N TAC 2 NIFC TAC 2
9 168.6000 168.6000 ANF 9 N TAC 3 NIFC TAC 3

Repeaters

The Angeles National Forest (ANF) radio system is comprised of 14 repeater sites situated on various mountain peaks in and around the forest which are linked to the dispatch center at Fox Field near Lancaster. Each repeater site functions as both a repeater and as a receiving antenna for dispatch.

Each repeater operates on the same input/output frequency pairs but uses a different CTCSS tone on the input. By selecting different tones users may activate different repeaters, choosing the one best suited to their location and communication needs. When a user activates a repeater by keying up on the appropriate input frequency and tone, their transmission is repeated only by that repeater. Other repeaters in the forest do not repeat transmissions from other repeaters. The input or repeater selection tone is not transmitted on the repeater output frequency, rather all repeaters transmit Tone 8 (103.5) on the output.

The nature of Bendix King radios used by the Forest Service is such that users may select a CTCSS tone independently for each channel by selecting a number on the radio's keypad. For the purpose of brevity the name of the repeater is not voiced, rather the CTCSS tone number is announced (e.g., "tone 9" instead of Pine Mountain or 100.0 Hz).

Tones

ANF Repeaters
Tone Location CTCSS Tone
1 Waterman Mountain 110.9
2 Santiago Peak 123.0
3 Mount Hawkins 131.8
4 Frost Peak 136.5
5 Not Assigned 146.2
6 Oat Mountain 156.7
7 Josephine Peak 167.9
8 Frasier Peak 103.5
9 Pine Mountain 100.0
10 Burnt Peak 107.2
11 Magic Mountain 114.8
12 Mount Lukens 127.3
13 Johnstone Peak 141.3
14 Grass Mountain 151.4

Cleveland National Forest (CNF - Forest #02)

Cleveland National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
1 1-12 168.7500 171.4250 CNF 1 Frst Forest Repeater Net
2 All excp. 1,6,8 168.1500 169.7250 CNF 2 Adm Admin Repeater Net
3 2,5,10 164.1250 164.8250 CNF 3 Serv Service Repeater Net
4 168.6625 168.6625 CNF 4 Prjct R5 Project
5 168.2000 168.2000 CNF 5 NIFC T2 NIFC Tac 2
6 166.5500 166.5500 CNF 6 R5 T4 R5 Tac 4 Palomar Ranger District Initial Attack
7 167.1125 167.1125 CNF 7 R5 T5 R5 Tac 5 Trabuco Ranger District Initial Attack
8 168.2375 168.2375 CNF 8 R5 T6 R5 Tac 6 Descanso Ranger District Initial Attack
9 151.1900 151.1900 CNF 9 CF Loc Cal Fire MVU Local Direct Tone 3 Rx Side
10 151.3550 159.3000 CNF F10 CF C1 Cal Fire Command 1
11 151.2650 159.3300 CNF 11 CF C2 Cal Fire Command 2
12 151.3400 159.3450 CNF 12 CF C3 Cal Fire Command 3 Tone 8 Rx Side
13 151.2500 151.2500 CNF 13 CF T5 Cal Fire Tac 5 Tone 16 Rx Side
14 151.4600 151.4600 CNF 14 CF T12 Cal Fire Tac 12 Tone 16 Rx Side
15 151.4750 151.4750 CNF 15 CF T13 Cal Fire Tac 13 Tone 16 Rx Side
16 169.1125 169.1125 CNF 16 R5 AG 4 CNF (P) USFS Region 5 Air-Ground 4 Primary


Tones

CNF Repeaters
Tone Location CTCSS Tone
1 Sierra 110.9
2 Santiago Peak 123.0
3 Elsinore 131.8
4 High Point 136.5
5 Cuyumaca 146.2
6 Ortega 156.7
7 Los Pinos 167.9
8 Boucher 103.5
9 Lyons Peak 100.0
10 Portable Repeater 107.2
11 Black Mtn. 114.8
12 Sitton Peak 127.3

Eldorado National Forest (ENF - Forest #03)

The Eldorado National Forest does not use channel numbers to describe the frequencies it uses, rather it describes them by name. Channel plans vary based on the ranger district and function to which they are assigned. Recreation, fire, timber, range (grazing), wildlife, engineering and watershed are examples of functions. The names are shown below under "Description" for each channel.

Direct or simplex communications are not conducted on the forest's repeater nets such as Forest Net. Tactical frequencies are used instead. Almost all handheld radios in use by the Forest Service are the Bendix-King. These radios have 16 groups and 16 channels per group. Only one group can be used at a time. By eliminating the simplex operation of the 5 Forest Service repeater nets the forest uses, 5 channels are available for other frequencies.


Eldorado National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
*** 1-11 171.5250 169.9500 ENF Forest Forest Net
*** 1-11 172.3250 173.7625 ENF Admin Admin Net
*** 1-11 164.1250 164.8250 ENF Service Service Net
*** 1,2,3 172.3750 164.9625 TMU Fire Lake Tahoe Basin Management Unit Fire Net (Commonly referred to as "Basin Fire")
*** 1,2,3 171.5750 165.4125 TMU Admin Lake Tahoe Basin Management Unit Admin Net (Commonly referred to as "Basin Admin")
*** 1-8 151.1900 159.2250 AEU Local Cal Fire Amador-Eldorado Local Net Tone 5 (145.2) Rx Side
*** 1-16 155.9025 159.2275 Eldr Cmd Eldorado County Command
*** 2,4 153.9350 158.880 Amdr Cmd Amador County Command Tone 2 (123.0) Rx Side
*** 168.0500 168.0500 NIFC T1 NIFC Tac 1
*** 168.2000 168.2000 NIFC T2 NIFC Tac 2
*** 168.6000 168.6000 NIFC T3 NIFC Tac 3
*** 166.5500 168.5500 R5 T4 R5 Tac 4
*** 167.1125 167.1125 R5 T5 R5 Tac 5
*** 168.2375 168.2375 R5 T6 R5 Tac 6
*** 168.6625 168.6625 R5 Project R5 Project Net
*** 151.1600 151.1600 CF T2 Cal Fire Tac 2 (Note: RX Tone 16 - 192.8)
*** 151.3700 151.3700 CF T8 Cal Fire Tac 8 (Note: RX Tone 16 - 192.8)
*** 151.3850 151.3850 CF T9 Cal Fire Tac 9 (Note: RX Tone 16 - 192.8)
*** 151.2200 151.2200 CF A/G Cal Fire Air to Ground
*** 167.5000 A/G 14 P National Air Guard ENF Primary
*** 169.1125 169.1125 A/G 59 S National Air Guard ENF Secondary


Tones

ENF Repeaters
Tone Location CTCSS Tone

Inyo National Forest (INF - Forest #04)

Inyo National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
INF Repeaters
Tone Location CTCSS Tone

Klamath National Forest (KNF - Forest #05)

Klamath National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
KNF Repeaters
Tone Location CTCSS Tone

Lake Tahoe Basin Management Unit (TMU - Forest #19)

Lake Tahoe Basin Management Unit Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
TMU Repeaters
Tone Location CTCSS Tone

Lassen National Forest (LNF - Forest #06)

Lassen National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


LNF Repeaters
Tone Location CTCSS Tone

Los Padres National Forest (LPF - Forest #07)

Los Padres National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


LPF Repeaters
Tone Location CTCSS Tone

Mendocino National Forest (MNF - Forest #08)

Mendocino National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


MNF Repeaters
Tone Location CTCSS Tone

Modoc National Forest (MDF - Forest #09)

Modoc National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


MDF Repeaters
Tone Location CTCSS Tone


Plumas National Forest (PNF - Forest #11)

Pluman National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


PNF Repeaters
Tone Location CTCSS Tone

San Bernardino National Forest (BDF - Forest #12)

San Bernardino National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


BDF Repeaters
Tone Location CTCSS Tone


Sequoia National Forest (SQF - Forest #13)

Radio System

Channels

Sequoia National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description
1 8 168.6750 168.6750 SQF F1 Emergency Net Direct
2 1-14 167.67500 170.5750 SQF F2 Emergency Repeater Net
3 8 168.7750 168.7750 SQF F3 Fire Net Direct
4 1-14 168.7750 170.6000 SQF F4 Fire Repeater Net
5 8 168.1750 168.1750 SQF F5 Admin Net Direct
6 169.7250 169.7250 SQF F6 BLM Central CA DIstrict Admin Net Direct
7 4,5,8 169.7250 165.450 SQF F7 BLM Central CA District Admin Repeater
8 169.7750 169.7750 SQF F8 BLM Central CA District Fire Net Direct
9 2-8 169.7750 163.0250 SQF F9 BLM Central CA District Fire Repeater Net

Tones

CNF Repeaters
Tone Location CTCSS Tone
1 Delilah Lookout 110.9
2 Buckrock Lookout 123.0
3 Mule Peak Lookout 131.8
4 Baker Point 136.5
5 Oakflat 146.2
6 Piute BM 156.7
7 Chimney Peak 167.9
8 Jordan Peak Lookout 103.5
9 Sherman Peak 100.0
10 Tobias Peak 107.2
11 Breckenridge 114.8
12 Parkridge 127.3
13 Converse 141.3
14 Olancha 151.4

Shasta-Trinity National Forests (SHF - Forest #14)

Shasta-Trinity National Forests Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


SHF Repeaters
Tone Location CTCSS Tone

Sierra National Forest (SNF - Forest #15)

Sierra National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


SNF Repeaters
Tone Location CTCSS Tone

Six Rivers National Forest (SRF - Forest #10)

Six Rivers National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


SRF Repeaters
Tone Location CTCSS Tone

Stanislaus National Forest (STF - Forest #16)

Stanislaus National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


STF Repeaters
Tone Location CTCSS Tone

Tahoe National Forest (TNF - Forest #17)

Tahoe National Forest Channel Lineup
Channel Tone(s) Rx Tx Alpha Tag Description


TNF Repeaters
Tone Location CTCSS Tone

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