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52 997-01530-01, Rev. C-25, Jan 2008
SSSSSSSSSSSS SSSS SSSSSS SSSSSSS S SSS SSSSSSS
1
where:
For example:
F50 XYZ<CR>
XL-GPS responds (example):
F50 X –4474331m Y 2668899m Z –3668099m<CR><LF>
F51 – GPS Antenna Cable Delay
Use function F51 to display or configure the GPS antenna cable delay. Setting a positive value for F51
compensates for the time the signal takes to travel the length of the cable from the GPS antenna to the
receiver. The factory setting for F51 is +60 nS (50 feet of RG-59). If using an optional Down/Up
Converter, consult that product’s documentation for directions on setting the correct cable delay.
F51 Guidelines:
• For RG-59: multiply the cable length by 1.24 ns/ft. to get the value for F51.
• For RG-58: multiply the cable length by 1.4 ns/ft. to get the value for F51.
• Don’t use function F51 to adjust the XL-GPS’s timing outputs; use F52 Distribution Cable Delay
instead.
Command Line
Use the following format to display the current Antenna Cable Delay setting:
F51<CR>
F = ASCII character F
50 = function number
<S> = ASCII space character
<SIGN> = Either + or - for the position of the ECEF XYZ coordinates
<MX> = Antenna X-position in meters to tenths of a meter
<MY> = Antenna Y-position in meters to tenths of a meter
<MZ> = Antenna Z-position in meters to tenths of a meter
m = ASCII character m for Meters
<ALT> = altitude in meters
<CR> = carriage return character
<LF> = line feed character