Side-by-side
VersaPNT Assured Positioning, Navigation & Timing Unit vs Septentrio PolaRx5S Ionospheric Monitoring GNSS Reference Receiver
Spec comparison for two products on Aviation Souk. Both compete in Air Traffic Control & Navigation Aids.

Air Traffic Control & Navigation Aids
VersaPNT Assured Positioning, Navigation & Timing Unit
by safran-trusted-4d
Compact rugged GNSS + inertial sensor-fusion unit — navigation system, master clock and NTP/PTP time server in one 1 kg IP65 box

Air Traffic Control & Navigation Aids
Septentrio PolaRx5S Ionospheric Monitoring GNSS Reference Receiver
by septentrio
Scintillation and interference monitoring reference receiver with 100 Hz output, real-time TEC/scintillation indices and AIM+ RF spectrum monitoring
| Cost of ownership | VersaPNT Assured Positioning, Navigation & Timing Unit | Septentrio PolaRx5S Ionospheric Monitoring GNSS Reference Receiver |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 5 | 0 |
Specs
Technical specifications.
| Spec | VersaPNT Assured Positioning, Navigation & Timing Unit | Septentrio PolaRx5S Ionospheric Monitoring GNSS Reference Receiver |
|---|---|---|
| Sensor fusion | FlexFusion engine combining GNSS + internal tactical-grade MEMS IMU + precision oscillator; external IMU and alternative-navigation inputs supported | — |
| GNSS | 72-channel L1 receiver, multi-constellation capability; SMA input with +5 VDC antenna feed; AJAS anti-jam antenna compatible | — |
| Oscillator options | OCXO, high-performance OCXO, mRO-50 miniature rubidium | — |
| 1PPS accuracy to UTC (locked) | +/-50 ns; frequency accuracy 5x10^-12 (OCXO) to 1x10^-12 (mRO-50) averaged over 24h | — |
| Holdover 1PPS drift (mRO-50) | 0.2 us @ 4 h, 1.5 us @ 24 h, 20 us @ 7 days; (OCXO): 3 us @ 4 h, 40 us @ 24 h | — |
| Position accuracy | 2.5 m RMS horizontal, 5.0 m RMS vertical (GPS L1, typical); velocity +/-0.05 m/s; heading <0.2 deg RMS with GPS; 400 Hz nav output rate | — |
| Operational readiness (hot start) | 1 ms UTC accuracy in 60 s, 1 us in 200 s | — |
| Timing I/O | 1PPS, configurable pulses to 10 MHz, IRIG DCLS (A/B/E/G, NASA-36), HaveQuick, NMEA 0183 over RS-232/RS-485, 10 MHz sine (SMA) | — |
| Network | NTP v2/v3/v4 server, PTP IEEE 1588 v1/v2 master, dual 10/100/1000bT; SNMP v2/v3, JSON RPC, HTTPS web management | — |
| GNSS jamming/spoofing detection | optional embedded | — |
| Power | 10-32 VDC, <25 W typical (OCXO), 0.4 W standby; size 147.3 x 127.5 x 63.0 mm VITA 75; weight 1.0 kg | — |
| Environment | -40 to +71 C operating (OCXO; -10 to +45 C mRO-50), IP65, MIL-STD-810G shock/vibration, MIL-STD-461F EMI/EMC, 45,000 ft altitude | — |
| Ordering / variants | Oscillator: OCXO / high-performance OCXO / mRO-50 mini-rubidium (rugged low-phase-noise OCXO option for high-vibration platforms); optional internal option board for additional RS-232/RS-485/DCLS interfaces; optional embedded jamming/spoofing detection; optional VICTORY interface; external IMU input. SAASM and M-Code receiver variants are export-controlled (authorised government users only) and excluded from this listing. | — |
| Hardware channels | — | 544 |
| Constellations tracked | — | GPS (L1, L2, L5), GLONASS (L1, L2, L3), Galileo (E1, E5ab, AltBOC, E6), BeiDou (B1, B2, B3), IRNSS/NavIC (L5), QZSS (L1, L2, L5), all-in-view SBAS incl. L5 (EGNOS, WAAS, GAGAN, MSAS, SDCM) |
| Interference monitoring | — | AIM+/WIMU interference mitigation incl. chirp jammers; integrated RF spectrum analyser; in-band and out-band interference robustness |
| Ionospheric outputs | — | Real-time TEC and scintillation indices (S4, Phi01/03/10/30/60, code-carrier divergence, scintillation intensity); ISMR records via SBF2ISMR |
| Phase noise (Phi60, 60 min) | — | 0.03 rad |
| Raw data output rate | — | up to 100 (code, carrier, intensity, I&Q correlations) Hz |
| Internal clock | — | Ultra-low-noise OCXO |
| Carrier phase precision (L1/L2) | — | 1 mm |
| Time accuracy (1PPS / event) | — | 10 / 20 ns |
| Tracking / acquisition threshold | — | 20 / 33 dB-Hz |
| Data formats | — | SBF, RTCM 3 (all MSM), NMEA v2.30/v4.10, ISMR |
| Interfaces | — | 4 hi-speed serial, 100 Mbps Ethernet (PoE), Wi-Fi 802.11 b/g/n, USB device + USB host, 10 MHz REF IN, PPS out (max 100 Hz) |
| Onboard logging | — | 16 GB, up to 8 simultaneous sessions, FTP server/push |
| Power consumption | — | 3.8–6 W |
| Input voltage | — | 9–30 VDC |
| Dimensions | — | 284 × 140 × 37 mm |
| Weight | — | 1.06 kg |
| Operating temperature | — | −40 to +65 °C |
| Humidity | — | 5–95 % non-condensing |
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