64
Front Panel Menu System
8.6
Setting the Back Light
Use the “SET BACK LIGHT?” menu to configure how the back light operates. Settings are either
BACK LIGHT OFF, BACK LIGHT ON, or BACK LIGHT AUTO. In the Auto setting, the back
light will operate for approximately 30 seconds before switching off. Press any key to restart the
backlight operation, otherwise you can set the backlight to ON to extend the viewing time.
For RS-232 command, see Section 11.2.7
SET BACK LIGHT?
ENTER
SETUP
BACK LIGHT
AUTO
AUTO*
ON
OFF
* = Default
DOWN
UP
ENTER
Figure 8.7: Back Light Setup
8.7
Setting System Delays
Use the “SET SYSTEM DELAYS?” menu to compensate for the delay in time of the GNSS signal
received at the antenna to reach the receiver. The time delay is entered in nanoseconds (10
−
9
seconds) and includes the antenna group delay and the antenna cable delay. Antenna cable delay
is a product of the length of the cable and the its velocity factor. Without compensating for these
delays, the time would be slow by this amount. To determine or calculate the cable delay for a
specific cable type and length see Section 4.4.1. Cable delay is approximately 60 ns for a standard
50 ft length. Antenna group delay is constant at proximately 40 ns. Consult the antenna data
sheet for the individual group delay specification.
For RS-232 command, see Section 11.2.11
SET SYSTEM DELAYS?
ENTER
SETUP
SYSTEM DELAY
000100 nS
999999
|
000100*
|
000000
* = Default
DOWN
UP
ENTER
Figure 8.8: System Delay Setup
