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Satellite signal security isolation device
Satellite signal security isolation device
Product Features
I. In-Situ Reinforcement Function
1. In-Situ Installation – The original satellite timing system is not replaced; in-situ installation provides immediate timing security reinforcement;
2. Seamless Transition – The original timing system remains unaware of the change, seamlessly switching its time reference from GPS to BeiDou;
3. Timing Reinforcement – When satellite navigation signals are denied, it independently provides uninterrupted timing services to the existing BDS/GPS timing system;
II. Signal Anomaly Monitoring
1. Real-time Monitoring – Monitors the quality of received satellite navigation signals 24/7, analyzing the integrity and availability of its timing services;
2. Timely Warning – When navigation satellites are unavailable or their quality degrades (e.g., due to interference or amplification), warnings are provided via indicator lights and standard data;
3. Early Warning – Provides customers with advance notice and time to take action before declining or denied satellite navigation signals affect the existing GPS timing system;
III. Security Isolation Function
1. Signal Isolation – Immediately isolates signals from unavailable satellites (e.g., satellite malfunctions, spoofing interference);
2. System Isolation – Isolates the GPS system from the existing GPS timing system without affecting its timing services;
IV. Anti-Interference and Anti-Spoofing Function
1. Anti-Jamming – Maintains secure signal output for at least 1 hour under full-band jamming conditions; secure signal output is unaffected under non-BDS frequency jamming;
2. Anti-Spoofing – Secure signal output is unaffected by GPS spoofing signals, including generative and retransmission spoofing interference;
Protected Signal Frequency Band | BDS B11, B1C, GPS L1C/A (other constellations and frequency bands optional) |
Spoofing Signal Detection Sensitivity | ≤ -128dBm |
Number of Anti-Spoofing Signals | ≥32 |
Spoofing Signal Code Phase Detection Capability | ≥0.5 chip |
Spoofing Protection Capability | Protects against repeater, generative, and intrusion-type spoofing |
Anti-Interference Capability | Anti-narrowband interference, Anti-suppression interference |
Spoofing Response Time | Alarm time ≤ 10s, Alarm clear time ≤ 4s |
Physical Dimensions & Electrical Characteristics
Power Supply | Dual power supply with hot standby (220V, 110V AC/DC auto-adaptive) |
Dimensions | Standard 1U 19-inch rack-mountable chassis |
Operating Temperature | -30°C to 70°C |
Power Consumption | ≤ 40W |
Weight | ≤ 5kg |
Signal Reinforcement Indicators
Reinforced Frequencies |
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Reinforced Signal Channels
| GPS L1C/A: 8 channels |
Reinforced Signal Power | -130 dBm to -70 dBm |
Reinforced Signal Time Accuracy | < 100 ns |
Reinforced Signal Holdover Accuracy | 500 ns @ 60 min (Standard) |