Gps Antenna Bonding; Gps Antenna Cable - Avidyne IFD540 Installation Manual

4. Determine the Distance (in feet) to Aircraft Lightning
Zone 2A for the aircraft on the Vertical Axis.
Example:
For example, if an aircraft shown in Figure 3 has a V
175 KIAS, the No Installation Area will be 7.2 feet. This
is shown on Figure 2 with a dotted line and Figure 3
with a shaded area.
Aircraft with a V
GPS antenna 8.6 feet aft of the nose of the aircraft
(excluding propeller).
Note: Locating the GPS antenna in the correct aircraft lightning
zone is the responsibility of the installing agency. If a
System Equipment DER is necessary, the Aircraft
Electronics Association is a good source of information.
The telephone number is +1 (816) 347-8400.

3.3.2 GPS Antenna Bonding

The GPS Antenna should have ≤ 2.5 milliohm resistance to the aircraft fuselage.

3.3.3 GPS Antenna Cable

The GPS Antenna Cable must be RG-142B, RG-400, or an equivalent 50 double shielded
coaxial cable. The GPS antenna cable loss should not be greater than 6.5dB or less than 1.5 dB.
Each connector on the GPS coaxial cable will add an additional 0.2 dB loss to the cable.
The GPS antenna cable should not be routed with high power wires or transmitting antenna
cables.
600-00299-000
greater than 210 KIAS may install the
no
Figure 3: Aircraft No-Installation Area
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