FlightMax Entegra PFD
-18- 600-00081-000 Rev 07
Primary navigation course setting is allowed when one of three
conditions is met:
1. PFD Nav Source = GPS1 or GPS2 and the requested
navigator is in OBS mode, or;
2. PFD Nav Source = VLOC and the current frequency is a
VOR station, or;
3. PFD Nav Source = VLOC and the current frequency is an
ILS or localizer. In this case, the ability to set a course is for
reference. The CDI is driven by the received localizer signal,
regardless of the set course.
The scaling of the CDI on the Entegra HSI is automatically set by the
navigator system as a function of the Nav source selected by the PFD
Nav button.
The source selected for Nav is coupled with
the CDI button on the navigator. As the Nav
button on the Entegra PFD is toggled from
GPS1 to VLOC1 and back, the CDI source on
navigator # 1 toggles from GPS to VLOC and back to match the cur-
rent Nav setting. Similarly, as the CDI button on the navigator is
toggled from GPS to VLOC and back, the Nav source of the
Entegra PFD will change to follow.
A recommended technique is to use the CDI button on navigator # 1
to toggle the Nav source back and forth, especially in a dual-GPS/VHF
navigator installation where the PFD Nav button cycles through all four
Nav sources (GPS 1, VLOC 1, GPS 2, VLOC 2), and the CDI button
on the navigator # 1 makes it easy to switch the PFD between GPS 1
and VLOC 1 and back.
Users Guide Use of Dual GPS/VHF navigators
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