Juniper ACX7024 - Page 13

Table 1: GNSS Receiver Conguraon (Connued)
Conguraon Step Command
Step 2: (Oponal) Specify the posion mode. TB-1 as ming
receiver has two dierent posion modes— posion-x-mode
and survey-mode. The default posion mode is survey-mode if no
specic mode is congured.
• posion-x-mode: Use this mode when you know the
accurate antenna locaon.
• survey-mode: Use this mode when you do not know the xed
locaon of the antenna.
For more informaon about posion mode, see gnss-receiver.
[edit chassis synchronization gnss-receiver number ]
user@host# set position-mode
Step 3: (Oponal) Specify the cable delay compensaon value.
This conguraon is used to compensate the delay introduced
due to RF cable which is routed from Antenna to TB-1 RF input.
You can also use this command to compensate the PPS cable
delay by adding both RF cable and PPS cable delays.
For long cable runs, this delay can be signicant. The range is
from -1000000 to 1000000 nanoseconds.
For more informaon about cable delay compensaon, see gnss-
receiver.
[edit chassis synchronization gnss-receiver number ]
user@host# set cable-delay-compensation value
Step 4: (Oponal) Specify the Signal-to-Noise Rao (SNR)
threshold value.
The SNR is the rao of the signal power to the noise power.
GNSS receiver measures SNR value to indicate the signal strength
of the received satellite signal and the noise density. You can
congure the SNR threshold value. Satellites with the signal level
equal to or above the threshold value can only be used for
posioning.
•
range: 0 - 99 dBHz
For more informaon about SNR threshold, see gnss-receiver.
[edit chassis synchronization gnss-receiver number ]
user@host# set snr-threshold value
Step 5: Commit the conguraon.
[edit]
user@host# commit
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