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Location |
| Lat/Long: |
32-50-23.171N / 117-15-10.130W
118223.171N / 422110.130W
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| Elevation: |
ft. |
| Variation: |
() |
Operational Characteristics |
| Type: |
VOT |
| Class: |
VOT [about] |
| Frequency: |
109.00 |
| Hours of operation: |
24 |
| Station call name: |
FOUR DOTS PER SECOND |
| FSS: |
SAN |
| FSS hours of operation: |
24 |
Technical Characteristics |
| Accuracy: |
10 SECONDS |
| Owner: |
FEDERAL AVIATION ADMIN |
| Operator: |
FEDERAL AVIATION ADMIN |
| Common system usage: |
no |
| For public use: |
yes |
Remarks |
- VOT AREA OF COVERAGE: SAN DIEGO, NORTH ISLAND NAS-HALSEY FLD (NZY), UNUSBL EXCEPT RUNUP AREAS RYS 18 & 29.
- VOT AREA OF COVERAGE: SAN DIEGO, MONTGOMERY FIELD (MYF), UNUSABLE ALL AREAS EXCEPT RUNUP AREAS RYS 05 & 28L.
- VOT AREA OF COVERAGE: SAN DIEGO, INTL LINDBERG FIELD (SAN), UNUSABLE ALL AREAS EXCEPT RUNUP AREA RY 27.
- VOT AREA OF COVERAGE: SAN DIEGO, BROWN FIELD MUNI (SDM), UNUSABLE ALL AREAS EXCEPT RAMP NORTH OF CUSTOMS INSPECTION AREA.
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NAVAID Class Designator Explanation |
The NAVAID Class Designator may be comprised of an altitude code (VOR, VORTAC, VOR/DME,
AND TACAN Facilities only), and/or a combination of class codes.
| Altitude Code |
Altitude Description |
| H |
High |
| L |
Low |
| T |
Terminal |
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| Examples: |
H-ABVORTAC, L-VOR, H, HH, MH-SAB, MHW/LOM, H-SAB/LOM |
| Note: |
Multiple class code types may be seperated by a / (slant) or a - (dash). |
| Canadian Facilities |
Canadian facilities may use additional codes not listed here. |
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| Class Code |
Description |
| AB |
Automatic Weather Broadcast |
| DME |
UHF standard (TACAN compatible) Distance Measuring Equipment |
| DME(Y) |
UHF standard (TACAN compatible) Distance Measuring Equipment that required receivers to be placed in the 'Y' mode to receive DME |
| H |
Non-Directional Radio Beacon (NDB), (Homing), power 50 watts to less than 2000 watts (50nm at all altitudes). |
| HH |
Non-Directional Radio Beacon (NDB), (Homing), power 2000 watts or more (75nm at all altitudes). |
| H-SAB |
Non-Directional Radio Beacom (NDB) providing automatic transcribed weather service. |
| LMM |
Compass Locator Station when installed at middle marker site (15nm at all altitudes). |
| LOM |
Compass Locator Station when installed at outer marker site (15nm at all altitudes). |
| MH |
Non-Directional Radio Beacon (NDB), (Homing), Power less than 50 watts (25nm at all altitudes). |
| S |
Simultaneous range homing singal and/or voice. |
| SABH |
Non-Directional Radio Beacon (NDB) NOT authorized for IFR or ATC. provides automatic weather broadcasts. |
| TACAN |
UHF navigational facility-Omnidirectional Course and Distance information. |
| VOR |
VHF navigational facility-Omnidirectional Course only. |
| VOR/DME |
Collocated VOR navigational facility and UHF standard Distance Measuring Equipment. |
| VORTAC |
Collocated VOR and TACAN navigational facilities. |
| W |
Without voice on radio facility frequency. |
| Z |
VHF station location marker at a radio facility. |
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