Space-Time Security Isolation Device

Product Overview

The GNR300 satellite space-time isolation device is a satellite signal security isolation product developed to address the vulnerability of Beidou/GPS civilian signals to interference, attacks, and spoofing, which can lead to inability to maintain proper timing and positioning.

Features:

2 satellite inputs, 2 satellite outputs (expandable)

Protects internal components against long-term feeder short-circuit conditions

Protects against forwarding, generation, and intrusion signal spoofing

Provides warnings via indicators and standard data when satellites are unavailable (e.g., due to national regional protection, GPS service shutdown, etc.) or when quality degrades (e.g., due to interference).

Secure signal output is unaffected by GPS spoofing signals, including generation and forwarding.

Main Applications:

Suitable for industries such as power, carriers, rail transit, and security.

Technical Indicators

Project	Technical Specifications
Operating Frequency Band	Receiving Frequency Band: BDS B1, B2, GPS L1, L2; Output Frequency Band: BDS B1, B2, GPS L1, L2
Abnormal Alarm Time	<15s
Alarm Clear Time	<120s
Timing Accuracy	100ns
Supports 1 PPS channel	1 10MHz input and output channel
Supports at least 3 alarm output channels
Communication interface	RJ45 network port (optional fiber optic network port)

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