X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
2
2
4
4
R
R
E
E
V
V
E
E
Value error!
re-enter
and the user will be given a chance to re-enter the correct position value.
3-151 KEYPAD FUNCTION 51 - ANTENNA CABLE DELAY ENTRY/REQUEST
Use Function 51 to request or enter a fixed delay to compensate for the antenna cable. The as-shipped
default is +60 ns.
When the down converter antenna is being used, 150 ns should be added to
the cable delay entered here.
The value is held in NVRAM.
Press "FUNC/ENTR", then "5" "1". The display will show:
Cable delay
+000000060 ns
Press the right or left arrow keys to position the cursor beneath the digit that you want to change.
Press the up or down arrow keys to scroll through the possible choices. Alternately, numbers may be
directly entered using the keypad. The cursor will automatically advance to the next position. When the
display shows the desired antenna cable delay, press "FUNC/ENTR" to enter the data. The acceptable
range of delays is from +001000000ns to -001000000ns.
Positive delays entered here will advance the
XL-DC timing outputs while negative delays will retard them.
3-152 KEYPAD FUNCTION 52 - DISTRIBUTION CABLE DELAY ENTRY/REQUEST
Use Function 52 to request or enter a fixed delay to be used for compensating the timing outputs for
distribution cable delays between the XL-DC and the point of use of the timing signals. Antenna cable
delay compensation should not be performed using this function. Use Function 51 for antenna cable
delay. The default is 0 ns. The value is held in NVRAM.
Press "FUNC/ENTR", then "5" "2". The display will show:
Cable delay
+000000000 ns
Press the right or left arrow keys to position the cursor beneath the digit that you wish to change. Press
the up or down arrow keys to scroll through the possible choices. Alternately, numbers may be directly
entered using the keypad. The cursor will automatically advance to the next position. When the display
shows the desired delay, press "FUNC/ENTR" to enter the data. The acceptable range of delays is
from +001000000ns to -001000000ns.
Positive delays entered here will advance the XL-DC timing
outputs while negative delays will retard them.
3-153 KEYPAD FUNCTION 53 - OPERATIONAL MODE ENTRY/REQUEST
Use Function 53 to select the operating mode, either AUTO, SURVEY or TIME. These operating
modes are explained in detail at the beginning of this section. The as-shipped default is AUTO mode.
The default value on power-up will be that in use prior to power-down.
Summary of Contents for 151-600
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