Strong
Bursts
Conditions
Typically
experienced ...
Receiver lock status Troubleshooting
80+ Excellent, minimal
signal attenuation
… outdoors Short time to con-
vergence
No action required
35-55 Good, some signal
attenuation
… indoors near
windows
Short time to con-
vergence
No action required
15-30 Moderate, strong
signal attenuation
… indoors far
from windows
Longer time to con-
vergence
Wait a couple of minutes for
better satellite geometry;
relocate antenna
5-15 Marginal, major sig-
nal attenuation
… deep
indoors
Significantly longer
time to convergence
Wait several minutes for bet-
ter satellite geometry;
relocate antenna
0 Poor, severe signal
attenuation
… very deep
indoors
No convergence Verify that STLservice is
enabled in your area;
wait several minuts for better
satellite geometry;
relocate antenna
Note: The values shown above are only guidelines: Due to the dynamic
nature of satellite signal characteristics over time, a specific burst
threshold value does not guarantee a good receiver performance.
Specifications
The specifications of the STL Option Module 1204-3E are:
Inputs: One STL antenna input, one Ethernet maintenance input
Antenna input connector: SMA
Maintenance connector: RJ45
Frequency band: 1626 MHz
Timing synchronization accuracy to UTC: ±500 ns (specified); ±200 ns (typical)
Coverage: Global
Time-to-first-fix (Timing): Several seconds (the PPS pulse will become available
once the positioning fix has been obtained)
Jamming resilience: Signal is 30 to 40 dB stronger than GPS signal
Spoofing resilience: Encrypted signal
486 SecureSync 2400 User Manual
APPENDIX
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