Otosphere

Industry’s only commercial GNSS protection solution

More details

  • Proprietary Interference Filtering Algorithm
  • Small form factor:74 x 47 x 25 mm, 150 g
  • Minimal power consumption: < 1 W (nominal)
  • IP67 waterproof rating
  • Automotive temperature grade compliant
  • Protected frequency: GPS L1 (C/A Code)
  • Passthrough frequencies: GPS L5 & Glonass G1 (BeiDou Optional)
  • Latency: 100ns ±15ns (fixed)
  • Insertion loss: 6.5dB ±2dB

The innovative device is a small, add-on module to any GNSS-based system that protects it from GNSS jamming attacks.
OtoSphere™ ensures continuity of autonomous navigation and timing signals. OtoSphere™ enables normal operation during jamming conditions. No other solution offers such protection and is as small, light, affordable, and easy to install. OtoSphere™ is unregulated by export control.

How does it work?​

The Vulnerability of GNSS is well known.
Orbiting at 20,000km, the GNSS satellites emit a signal which is incredibly weak when received by GNSS receivers (~-125dBm). To jam or spoof this signal all that is needed is to overpower it.
This can be done with a simple jammer bought online to completely block the signal or with a slightly more sophisticated device that can trick the receiver with erroneous data.

Our unique interference filtering algorithm
combines the patterns from two omnidirectional antennas. OtoSphere™ analyzes where the interference is coming from and feeds it into its algorithm to filter out the jamming/spoofing signals.

​Installation Couldn't Be Easier.​

After mounting the 2 antennas on a flat, sky-facing, base with at least 10cm separation (optimally > 25cm), connect the antennas to OtoSphere™ and connect it to the antenna input on your GNSS receiver.
Feed it with power and the system is defended.

AJS_Otosphere_DS

Data Sheet for the OtoSphere

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AJS_Otosphere_IG

Installation Guide for the OtoSphere

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DescriptionPart-Number
Otosphere v2 EPS - External Power feed (3.3–32VDC) & interference indication over 3 wire cable (2.15m)6415
Otosphere v2 PPS - Phantom Power Supply (3.3VDC – 32VDC) supplied from (R) connector6416