EPSILON CLOCK MODEL EC20S Spectracom
User’s Manual 72
13.8 GNSS SETUP PAGE
On this page, the operator set the GNSS receiver parameters.
77. GNSS ANTENNA DELAY
Time shift that compensates the propagation delay of the GNSS signal through the antenna
cable. To be computed according to the type and the length of cable. Unity: nanosecond.
78. GNSS MODE
Defines the way to determine the GNSS antenna position:
- Automatic The GNSS antenna is stationary and its position is automatically
computed by the EC20S. The EC20S gets the current antenna
position from the GNSS receiver every second for one hour. A
current position is selected as valid if the GNSS receiver is
tracking a minimum of 4 satellite channels. The progression of
the one hour period is displayed by the “Self Survey” status of
the “Clock Status” web page. Once the one hour period is
complete, the antenna position is determined while computing
the average of all the recorded antenna positions. The accurate
position so determined is then set in the GNSS receiver which
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