Filter
Top Products
Chapter 5 Command Reference
GPS Satellite Acquisition
5-22 Operating and Programming Guide
Compensating for Antenna Delay_________________________
This command sets the GPS antenna delay value in seconds. It instructs the
Receiver to output its 1 PPS output pulse earlier in time to compensate for
antenna cable delay.
CAUTION Using this command while the Receiver is in normal locked operation could
cause the Receiver go into holdover.
Expanded Syntax
:GPS:REFerence:ADELay <numeric_value>
Parameter
Numeric_value range is 0 to 0 .000999999 seconds. The resolution is
1 nanosecond.
Zero cable delay is set for a zero-length antenna cable. Consult a cable data
book for the delay per meter for the particular antenna cable used in order to
compute the total cable delay needed for a particular installation.
See Also
:GPS:REFerence:ADELay?
The tables below list the delay values that you need to use with the
:GPS:REFERENCE:ADELAY <seconds> command for the available cable
assemblies.
Delay Values for the 58518A/519A and 58518AA/519AA RG-213 Antenna
Cables
The nominal delay value is labeled on the cables. Refer to the Designing Your
GPS Antenna System Configuration Guide for more information.
:GPS:REFerence:ADELay . . .
:SYSTem:PRESet
Sets the GPS antenna delay value in seconds.
0.0
NON-VOLATILE
Cable Option Length RG 213 or Belden 8267
Antenna Delay
Value
001 1m 5.0 nanoseconds
002 2 m 10.3 nanoseconds
005 5 m 25.2 nanoseconds
010 10 m 50.5 nanoseconds
015 15 m 75.7 nanoseconds
030 30 m 151.5 nanoseconds
050 50 m 252.5 nanoseconds