Using GPS/VHF Systems with the EXP5000
Entegra EXP5000 PFD
-32-
600-00157-000 Rev. 06
3.5 Using GPS/VHF Systems with the EXP5000
You can use the EXP5000 to set a primary navigation course setting
on the HSI when one of three conditions is met:
●
PFD Nav Source = GPS 1 or GPS 2
and the selected GPS/VHF
system is in OBS mode.
●
PFD Nav Source = VLOC 1 or VLOC 2
and the current
frequency is a VOR station.
●
PFD Nav Source = VLOC 1 or VLOC 2
and the current
frequency is an ILS or localizer. In this case, you can set a
course for reference. The CDI is driven by the received localizer
signal, regardless of the course set.
The CDI scale on the EXP5000’s HSI is automatically set by the
GPS/VHF system as a function of the Nav source you select with the
PFD
Nav
button.
Figure 9. Setting CDI Scale on EXP5000’s HSI
The source you select for Nav is coupled with the
CDI
button on the
GPS/VHF unit, as follows:
●
When you toggle the
Nav
button on the EXP5000 from GPS 1 to
VLOC 1 and back, the CDI source on GPS 1 changes from GPS
to VLOC and back to match the current
Nav
setting.
●
Similarly, when you toggle the
CDI
button
on the GPS/VHF unit
from GPS to VLOC and back, the
Nav
source on the EXP5000
changes to match.
➥
Avidyne recommends that you use the CDI button on GPS 1 to
toggle the Nav source back and forth, especially for dual-GPS
installations where the PFD
Nav
button cycles through all four
Nav sources (GPS 1, VLOC 1, GPS 2, VLOC 2), and the CDI
button on GPS 1 makes it easy to switch the EXP5000
between GPS 1 and VLOC 1 and back.
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