CP.VII.B.R4

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 16-33
  Chapter 16: Navigation › RAIM Capability › Tips for Using GPS for VFR Operations

  Consequently, signal loss may occur in certain situations where aircraft-satellite geometry causes a loss of navigation signal. These losses, coupled with a lack of RAIM capability, could present erroneous position and navigation information with no warning to the pilot ... While a hand-held GPS receiver can provide excellent navigation capability to VFR pilots, be prepared for intermittent loss of navigation signal, possibly with no RAIM warning to the pilot. If mounting the receiver in the aircraft, be sure…

• Pilot's Handbook of Aeronautical Knowledgep. 16-32
  Chapter 16: Navigation › Ground-Based Navigation › RAIM Capability

  used, some portion of the aircraft may block the view of the antenna increasing the possibility of losing navigation signal. This is especially true in the case of hand-held receivers. The use of hand-held receivers for VFR operations ... limited by aircraft structure for optimal reception of available satellites. Consequently, signal loss may occur in certain situations where aircraft-satellite geometry causes a loss of navigation signal. These losses, coupled with a lack of RAIM capability, could present erroneous…

• Aeronautical Information Manualp. 1-1-23
  Chapter 1. Air Navigation › Section 1. Navigation Aids › 1-1-17. Global Positioning System (GPS)

  provided with the satellites. Antennae not providing a clear view have a greater opportunity to lose the satellite navigational signal. This is especially true in the case of hand-held GPS receivers. Typically, suction cups are used to place ... clear view of all available satellites. Consequently, signal losses may occur due to aircraft structure blocking satellite signals, causing a loss of navigation capability. These losses, coupled with a lack of RAIM capability, could present erroneous position and navigation information…

• Aeronautical Information Manualp. 1-1-37
  Chapter 1. Air Navigation › Section 1. Navigation Aids › 1-1-18. Wide Area Augmentation System (WAAS)

  EXAMPLE-For unscheduled loss of signal or service, an example NOTAM is…

• Aeronautical Information Manualp. 5-1-4
  Chapter 5. Air Traffic Procedures › Section 1. Preflight › 5-1-3. Notice to Airmen (NOTAM) System

  adequacy of the signal for desired use. Aircraft should have additional navigation equipment for their intended route. NOTE-Unless associated with a known testing NOTAM, pilots should report GPS anomalies, including degraded operation and/or loss of service, as soon…