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Installation
GPS N
AVIGATION
Switch on the SL50/60 in the normal mode to complete the this part of the checkout. The
SL50/60 will go through a sequence of self tests.
The SL50/60 requires a "seed" position, time, and date for the GPS sensor to know which
satellites to look for. Once this is entered, it will be saved and updated automatically. If the
SL50/60 is moved a great distance without being turned on, the seed position may have to be
re-entered.
Entering the seed position:
1. During the display startup sequence, press
2. Rotate the
LARGE
input the correct lat/lon, and then press
The seed position can also be input with reference to a waypoint. Refer to the user's manual
for instructions.
Entering the time and date:
1. Press the
SYS
press
.
ENT
2. Press
, rotate the
SEL
knob to input the correct time, and then press
GPS Operation and Position
This checkout is to be completed with the aircraft moved away from hangars and other
structures that may obstruct the view of the satellites.
1.
Turn on the SL50/60 and allow the unit to acquire a position. All other avionics should
be turned off for this part of the test.
2. Check the position using the lat/lon navigation page. Press the
knob to the lat/lon page. The lat/lon should agree with a known reference
LARGE
position.
3. Check the signal reception using the GPS sensor displays in the System mode. Press the
button, rotate the
SYS
rotate the
SMALL
4.
Turn on other avionics one at a time and check the GPS signal reception to make sure it
is not affected.
5. Check for VHF comm transmitter interference. This must be completed on all IFR
installations.
a) Verify that 5 to 8 satellites are in DATA and the NAV flag is out of view.
b) Tune the comm to 121.150MHz and transmit for 20 seconds.
c) Verify that the position is not lost.
d) Repeat for additional frequencies as follows.
121.125MHz
121.175MHz
121.200MHz
121.225MHz
121.250MHz
24
C
HECKOUT
knob to move the cursor to different fields, rotate the
button, rotate the
LARGE
knob to move the cursor to different fields, rotate the
LARGE
knob to the "GPS S
LARGE
knob to display the GPS info. Typical signal levels are 50 or better.
131.225MHz
131.250MHz
131.275MHz
131.300MHz
131.325MHz
when the position page is displayed.
SEL
to save the changes.
ENT
knob to display the "S
to save the changes.
ENT
:" page, and press
ENSOR
Apollo SL50 / SL60 Installation Manual
knob to
SMALL
I
" page, and
YSTEM
NFO
SMALL
button and rotate the
NAV
. Then
ENT
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