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FIG 1

-

-

Lower Edge of Low and High Service Volumes (in altitude ATH)

With the progression of navigation capabilities to Performance Based
Navigation (PBN), additional

capabilities for off

-

route navigation are necessary. For example, the VOR MON (See
paragraph [1]1

[2]-

[3]1

[4]-

[5]3 f.)

requires the use of VORs at 5,000 feet AGL, which is beyond the
original SSV ranges. Additionally, PBN

procedures using DME require extended ranges. As a result, the FAA
created four additional SSVs. Two of the

new SSVs are associated with VORs: VOR Low (VL) and VOR High (VH),
as [6]shown in FIG 1

[7]-

[8]1

[9]-

[10]4. The other

two new SSVs are associated with DME: DME Low (DL) and DME High (DH),
as shown in [11]FIG 1

[12]-

[13]1

[14]-

[15]5. The

[16]SSV at altitudes below 1,000 feet for the VL and VH are the same
as FIG 1

[17]-

[18]1

[19]-

[20]3. The SSVs at altitudes below

12,900 feet for the DL and DH SSVs correspond to a conservative
estimate of the DME radio line of sight (RLOS)

coverage at each altitude (not including possible terrain blockage).

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Navigation Aids

References

1. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
2. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
3. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
4. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
5. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
6. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
7. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
8. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
9. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  10. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  11. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  12. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  13. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  14. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  15. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  16. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  17. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  18. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  19. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0
  20. file:///media/stevei/plnkx/aspirations/go-faraim/work/src/faraim/faa/aim/78/aim-78.html#0