Performance veri
fi
cation
5.
Check the signal quality on the SPG8000 under test as follows:
a.
Press the
STATUS
button.
b.
Press the down (
▼
) arrow button until you see
STATUS : GPS
.
c.
Use the left (
◄
) or right (
►
) arrow button to view the
GPS SIGNAL
QUALITY: 30.0 Sats: 4/4
readout. Check that the signal quality value is
greater than 30 and that the number of satellites is above 4/4.
6.
Check the value on the SPG8000 under test. A value of 30 or above is
adequate.
7.
Go to the diagnostics page on the reference unit and check that the system is
in
Fine
mode as follows. If it is not, then allow it to warm up and stabilize.
a.
Use the up (
▲
) arrow button to select
DIAGNOSTICS
.
b.
Press the
ENTER
button.
c.
Press the right (
►
) arrow to display
TUNE
.
d.
Check that
Fine
shows on the right side of the display.
e.
Press
BACK
to exit Diagnostics menu.
8.
Go to the diagnostics page on the SPG8000 under test and check that the
system is in
Fine
mode as follows. If it is not, then allow it to warm up and
stabilize.
a.
Press the
SYSTEM
button.
b.
Use the up (
▲
) arrow button to select
DIAGNOSTICS
.
c.
Press the
ENTER
button.
d.
Check that you can see
SYSTEM : DIAGNOSTICS : TUNE
in the
menu.
e.
Press the right (
►
) arrow to display the
Phase
and
DDS
values.
f.
Check that
Fine
shows to the right of the readings. If it does not, allow
more time for the system to stabilize.
g.
Press
BACK
to exit the Diagnostics menu.
9.
Set the
BLACK 1
output on the reference unit to NTSC as follows:
a.
Use the up (
▲
) or down (
▼
) arrow button to select
SELECT OUTPUT
.
b.
Use the left (
◄
) or right (
►
) arrow button to select
Black 1
.
c.
Press
ENTER
to display
INPUT-OUTPUT
.
d.
Use the down (
▼
) arrow button to display
SELECT FORMAT
.
e.
Press
ENTER
twice to select
NTSC
and
Black Burst
.
84
SPG8000 Speci
fi
cations and Performance Veri
fi
cation
