Avionics News May 2012 - 42

GLOBAL COMPLICATIONS
Continued from page 41

NAVIGATION Like VHF comm, VHF omni-range and related technologies, such as

distance measuring equipment and tactical air navigation, only operate on a line-of-sight basis and must be supplemented by other technologies for oceanic and remote operations. Some routes require specific equipment, typically an area navigation sys-

tem with long-range capability, which usually involves either or both inertial and satellite navigation systems. Dual long-range RNAV systems are highly advisable and can provide operational flexibility – over the Atlantic, aircraft with only a single navigation system are limited to specific routes. In some parts of the world, non-direction beacons remain a primary navigation method. In the U.S., an appropriately TSO’d GPS receiver can be used in place of an automatic direction finder for NDB navigation, but this may not be the case in other parts of the world. It is also worth noting that GPS navigation outside North America cannot take advantage of the wide-area augmentation system. Thus, operators are well advised (and in some cases may be legally required) to have other means of navigation available in order to complete the flight in case of GPS failure. POSITION REPORTING AND SURVEILLANCE In high-traffic density areas today, the standard method for position reporting and surveillance remains the altitude encoding blip-enhance radar transponder – though specific requirements vary. For example, while Mode C is generally sufficient in the U.S., Mode S is required for IFR operations in Europe. For heavy aircraft, antenna diversity and an enhanced version of Mode S with data downlink also is required. However, radar transponders are a VHF technology with the same line-of-sight limitations mentioned above. For oceanic and remote operations, the traditional solution to this problem has been voice position reporting either at route-specific reporting points or times. On some routes, automatic position reporting may be available using ADS-C (generally through a UHF Inmarsat satellite),
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42

avionics news

•

may

2012

Submitted by: Stucky Nolte, LLC


http://aeromach.com

Table of Contents for the Digital Edition of Avionics News May 2012

Point of Communication
AEA Now
The View From Washington
International News and REgulatory Updates
Wireless Connections in the Cockpit
Member Profile
Harnessing Diversity
Before & After
A Conversation With...
General Aviation Flight Recorders
Global Complications
Aviation Aces
Member Profile
Low-Cost Flight Data Monitoring
Business Basics
Theory & Practice
What's New
Marketplace Classifieds
Avionics News May 2012 - Cover1
Avionics News May 2012 - Cover2
Avionics News May 2012 - 1
Avionics News May 2012 - 2
Avionics News May 2012 - 3
Avionics News May 2012 - Point of Communication
Avionics News May 2012 - 5
Avionics News May 2012 - AEA Now
Avionics News May 2012 - 7
Avionics News May 2012 - 8
Avionics News May 2012 - 9
Avionics News May 2012 - 10
Avionics News May 2012 - 11
Avionics News May 2012 - 12
Avionics News May 2012 - 13
Avionics News May 2012 - The View From Washington
Avionics News May 2012 - 15
Avionics News May 2012 - International News and REgulatory Updates
Avionics News May 2012 - 17
Avionics News May 2012 - 18
Avionics News May 2012 - 19
Avionics News May 2012 - Wireless Connections in the Cockpit
Avionics News May 2012 - 21
Avionics News May 2012 - 22
Avionics News May 2012 - 23
Avionics News May 2012 - Member Profile
Avionics News May 2012 - 25
Avionics News May 2012 - 26
Avionics News May 2012 - 27
Avionics News May 2012 - Harnessing Diversity
Avionics News May 2012 - 29
Avionics News May 2012 - 30
Avionics News May 2012 - 31
Avionics News May 2012 - 32
Avionics News May 2012 - Before & After
Avionics News May 2012 - A Conversation With...
Avionics News May 2012 - 35
Avionics News May 2012 - General Aviation Flight Recorders
Avionics News May 2012 - 37
Avionics News May 2012 - 38
Avionics News May 2012 - 39
Avionics News May 2012 - Global Complications
Avionics News May 2012 - 41
Avionics News May 2012 - 42
Avionics News May 2012 - 43
Avionics News May 2012 - 44
Avionics News May 2012 - 45
Avionics News May 2012 - Aviation Aces
Avionics News May 2012 - 47
Avionics News May 2012 - 48
Avionics News May 2012 - 49
Avionics News May 2012 - Member Profile
Avionics News May 2012 - 51
Avionics News May 2012 - 52
Avionics News May 2012 - 53
Avionics News May 2012 - Low-Cost Flight Data Monitoring
Avionics News May 2012 - 55
Avionics News May 2012 - 56
Avionics News May 2012 - 57
Avionics News May 2012 - Business Basics
Avionics News May 2012 - 59
Avionics News May 2012 - 60
Avionics News May 2012 - 61
Avionics News May 2012 - Theory & Practice
Avionics News May 2012 - 63
Avionics News May 2012 - 64
Avionics News May 2012 - 65
Avionics News May 2012 - What's New
Avionics News May 2012 - 67
Avionics News May 2012 - 68
Avionics News May 2012 - 69
Avionics News May 2012 - Marketplace Classifieds
Avionics News May 2012 - 71
Avionics News May 2012 - 72
Avionics News May 2012 - Cover3
Avionics News May 2012 - Cover4
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