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Difference between revisions of "Yosemite National Park (CA)"

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(→‎Tones: added Henness Ridge repeater to tone table per official directory)
 
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Yosemite dispatch is located in the town of El Portal just off of highway 140. Dispatch is called "Yosemite."
+
Yosemite dispatch is located in the town of El Portal (pronounced el POOR tal) just off of highway 140. Dispatch is called "Yosemite."
  
 
Yosemite Fire Dispatch is called "Yosemite Fire."
 
Yosemite Fire Dispatch is called "Yosemite Fire."
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{| border="4" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 2px #777777 solid; border-collapse: collapse;" class="wikitable sortable"
 
{| border="4" cellpadding="4" cellspacing="0" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 2px #777777 solid; border-collapse: collapse;" class="wikitable sortable"
 
|+ '''YNP Radio Channels'''
 
|+ '''YNP Radio Channels'''
|Channel #||Rx Freq||Rx Tone||Tx Freq||Tx Tone||Description||Notes
+
|Channel #||Tone(s)||Rx Freq||Tx Freq||Alpha Tag||Description||Notes||Confirmation/ReConfirmation Date
 
|-
 
|-
|01||172.7750|| ||172.7750|| ||Fire Net - Local||
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|01|| ||172.7750||172.7750||YNP1 FireDir||Yosemite NP CH1 Fire Net Direct|| ||
 
|-
 
|-
|02||172.7750||110.9||166.3625||110.9||Fire Net - Crane Flat Repeater||
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|02||1-5,7||172.7750||166.3625||YNP2 FireRpt||Yosemite NP CH2 Fire Net Repeater|| ||
 
|-
 
|-
|02||172.7750||123.0||166.3625||123.0||Fire Net - Signal Peak Repeater||
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|03|| ||172.6500||172.6500||YNP3 ParkDir||Yosemite NP CH3 Park Net Direct|| ||
 
|-
 
|-
|02||172.7750||131.8||166.3625||131.8||Fire Net - Mount Hoffman Repeater||
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|04||3||172.6500||171.6500||YNP4 ParkRpt||Yosemite NP CH4 Park Net Mt. Hoffman Repeater|| ||
 
|-
 
|-
|02||172.7750||136.5||166.3625||136.5||Fire Net - North Mountain Repeater||
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|05||1,2||172.6500||172.0250||YNP5 ParkRpt||Yosemite NP CH5 Park Net Repeater|| ||
 
|-
 
|-
|02||172.7750||146.2||166.3625||146.2||Fire Net - Sentinel Dome Repeater||
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|06|| ||166.3000||166.3000||YNP6 VllyDir||Yosemite NP CH6 Valley Net Direct|| ||
 
|-
 
|-
|03||||||||||Old Fire Net||Not being used in 2015
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|07||1,2||166.3000||164.4250||YNP9 VllyRpt||Yosemite NP CH7 Valley Net Repeater|| ||
 
|-
 
|-
|04||168.5625|| ||168.5625|| ||YNP Air-to-Ground||1
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|08|| ||168.3500||168.3500||YNP08 Common||Yosemite NP CH8 Common Net|| ||
 
|-
 
|-
|05||172.6500|| ||172.6500|| ||Park Net - Parkwide - Local||
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|09|| ||168.5625||168.5625||YNP9 Air-Grnd||Yosemite NP CH9 Air-to-Ground||(1) ||
 
|-
 
|-
|06||172.6500||131.8||171.6500||131.8||Park Net - Mount Hoffman Repeater||
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|10?|| ||166.8500||166.8500||YNP10? LE Dir||Yosemite NP CH10? Law Enforcement Net Direct||(2) ||
 
|-
 
|-
|07||172.6500||110.9||172.0250||110.9||Park Net - Crane Flat Repeater||
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|11?||1-3,6||166.8500||171.8250||YNP11? LE Rpt||Yosemite NP CH11? Law Enforcement Repeater||(2)
|-
 
|07||172.6500||123.0||172.0250||123.0||Park Net - Wawona Repeater||
 
|-
 
|08||166.3000|| ||166.3000|| ||Valley Net - Local||
 
|-
 
|09||166.3000||110.9||164.4250||110.9||Valley Net -Turtle Back Dome Repeater||
 
|-
 
|09||166.3000||123.0||164.4250||123.0||Valley Net - Sentinel Dome Repeater||
 
|-
 
|10||166.8500|| ||166.8500||||Law Enforcement Net - Local||
 
|-
 
|11||166.8500||2||2||2||Law Enforcement - Repeaters||
 
|-
 
|12||168.3500|| ||168.3500|| ||YNP Common Net||3
 
|-
 
|13||163.7125|| ||163.7125|| ||YNP Tac 1||3
 
|-
 
|14||168.6125|| ||168.6125|| ||YNP Tac 2||3
 
|-
 
|15||163.7125|| ||163.7125|| ||YNP Tac 1||3, 4
 
|-
 
|16||168.6125|| ||163.7125|| ||YNP Tac 2||3, 4
 
 
|-
 
|-
 +
 
|}
 
|}
  
  
1  The park's air to ground frequency is also National Air to Ground 55.  There is no record of it being used anywhere in the country.  It might be used as an air to ground on extended attack incidents after assigned by NIFC.  NIFC cannot assign it in a wide area around Yosemite NP as it has been assigned to this park.
+
(1) The park's air to ground frequency is also designated National Air to Ground 55.  There is no record of AG 55 being assigned to any dispatch zone in the country.  On a case by case basis, NIFC can assign it to extended attack incidents, but cannot do so if interference to Yosemite NP will result.  
  
This information is not provided in interagency frequency directories.  
+
(2) Information on the channels the law enforcement net occupies is no longer available as Channels 10-16 are not shown on the documents obtained.
  
3  The last three channels (12 - 16) are federal government nationwide itinerant frequencies that can be used by any agency at any time and location.  Agencies do not have exclusive use of them.  They are commonly used as tactical frequencies in National Parks, especially 168.6125.
+
It is not known how use of the law enforcement net is determined as protection rangers are heard on the Park, Valley and Law Enforcement NetsBased on listening it appears that most law enforcement and search and rescue communications in the Valley District use the law enforcement netThe bulk of the protection traffic in the remaining districts is carried on the park net.
 
 
4 It is believed that Channels 15 and 16 may be programmed for digital operationThis is yet to be confirmed.  This is our best conjecture given these channels are duplicates of Channels 13 and 14.
 
  
 
===Tones===
 
===Tones===
{| class="wikitable"
+
{| class="wikitable" border="1" style="margin: 1em 1em 1em 0; background: #f9f9f9; border: 2px #777777 solid; border-collapse: collapse;"
 
|+ '''YNP Repeater Tones'''
 
|+ '''YNP Repeater Tones'''
|-
 
|-
 
 
!Tone #
 
!Tone #
 
!Site
 
!Site
 
!Tone Frequency
 
!Tone Frequency
!Use on YNP Channel
+
!Used on YNP Channel
 
|-
 
|-
 
|1
 
|1
 
|Crane Flat
 
|Crane Flat
 
|110.9
 
|110.9
|2, 7
+
|2, 5
 
|-
 
|-
 
|1
 
|1
 
|Turtleback
 
|Turtleback
 
|110.9
 
|110.9
|9
+
|7, 11
 
|-
 
|-
 
|2
 
|2
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|Wawona
 
|Wawona
 
|123.0
 
|123.0
|7
+
|5, 11
 
|-
 
|-
 
|2
 
|2
 
|Sentinel Dome
 
|Sentinel Dome
 
|123.0
 
|123.0
|9
+
|7
 
|-
 
|-
 
|3
 
|3
 
|Mount Hoffman
 
|Mount Hoffman
 
|131.8
 
|131.8
|2, 6
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|2, 4, 11
 
|-
 
|-
 
|4
 
|4
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|146.2  
 
|146.2  
 
|2
 
|2
 +
|-
 +
|6
 +
|Sentinel Dome
 +
|156.7
 +
|11
 
|-
 
|-
 
|7
 
|7
 
|Henness Ridge
 
|Henness Ridge
 
|167.9
 
|167.9
|2  
+
|2
 +
|-
 
|}
 
|}
  
  
The repeater transmits the input tone on the output frequency.
+
Repeaters transmit the input tone on the output frequency.
  
 
===Related Links===
 
===Related Links===

Latest revision as of 12:04, 3 April 2022


Yosemite dispatch is located in the town of El Portal (pronounced el POOR tal) just off of highway 140. Dispatch is called "Yosemite."

Yosemite Fire Dispatch is called "Yosemite Fire."


Channels

YNP Radio Channels
Channel # Tone(s) Rx Freq Tx Freq Alpha Tag Description Notes Confirmation/ReConfirmation Date
01 172.7750 172.7750 YNP1 FireDir Yosemite NP CH1 Fire Net Direct
02 1-5,7 172.7750 166.3625 YNP2 FireRpt Yosemite NP CH2 Fire Net Repeater
03 172.6500 172.6500 YNP3 ParkDir Yosemite NP CH3 Park Net Direct
04 3 172.6500 171.6500 YNP4 ParkRpt Yosemite NP CH4 Park Net Mt. Hoffman Repeater
05 1,2 172.6500 172.0250 YNP5 ParkRpt Yosemite NP CH5 Park Net Repeater
06 166.3000 166.3000 YNP6 VllyDir Yosemite NP CH6 Valley Net Direct
07 1,2 166.3000 164.4250 YNP9 VllyRpt Yosemite NP CH7 Valley Net Repeater
08 168.3500 168.3500 YNP08 Common Yosemite NP CH8 Common Net
09 168.5625 168.5625 YNP9 Air-Grnd Yosemite NP CH9 Air-to-Ground (1)
10? 166.8500 166.8500 YNP10? LE Dir Yosemite NP CH10? Law Enforcement Net Direct (2)
11? 1-3,6 166.8500 171.8250 YNP11? LE Rpt Yosemite NP CH11? Law Enforcement Repeater (2)


(1) The park's air to ground frequency is also designated National Air to Ground 55. There is no record of AG 55 being assigned to any dispatch zone in the country. On a case by case basis, NIFC can assign it to extended attack incidents, but cannot do so if interference to Yosemite NP will result.

(2) Information on the channels the law enforcement net occupies is no longer available as Channels 10-16 are not shown on the documents obtained.

It is not known how use of the law enforcement net is determined as protection rangers are heard on the Park, Valley and Law Enforcement Nets. Based on listening it appears that most law enforcement and search and rescue communications in the Valley District use the law enforcement net. The bulk of the protection traffic in the remaining districts is carried on the park net.

Tones

YNP Repeater Tones
Tone # Site Tone Frequency Used on YNP Channel
1 Crane Flat 110.9 2, 5
1 Turtleback 110.9 7, 11
2 Signal Peak 123.0 2
2 Wawona 123.0 5, 11
2 Sentinel Dome 123.0 7
3 Mount Hoffman 131.8 2, 4, 11
4 North Mountain 136.5 2
5 Sentinel Dome 146.2 2
6 Sentinel Dome 156.7 11
7 Henness Ridge 167.9 2


Repeaters transmit the input tone on the output frequency.

Related Links