![Concurrent Alternative RF & GNSS Signal Simulation](https://d27wgn5g4t3wja.cloudfront.net/img/0b6465a2-f3a8-f6a0-7585-5a02554a0330/346046.png)
Concurrent Alternative RF & GNSS Signal Simulation
SimAltNav Replay - Spirent Federal Systems
Non-GNSS sources of RF (radio frequency) are of interest in GPS-degraded or contested signal environments, with interest focused on LEO (low earth orbit) constellations. These systems offer high receiver signal power (relative to GNSS) and a secure & resilient link to augment GNSS.