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- M20 vs AsteRx-U3 Marine
Bynav M20 vs Septentrio AsteRx-U3 Marine
What M20 does better (3) and where AsteRx-U3 Marine wins (0) — every spec side by side.
4.0Positioning7.1
Dimensions
Size comparison
M20AsteRx-U3 Marine
| M20 | AsteRx-U3 Marine | Difference | |
|---|---|---|---|
| Height | 17 mm | 45 mm | −28 mm |
| Width | 22 mm | 245 mm | −223 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is M20 better than AsteRx-U3 Marine?
- Tracking channels1,507 vs 5442.8×
- Operating temperature (min)-40 °C vs -30 °C+-25%
- Operating temperature (max)85 °C vs 65 °C+31%
Why is AsteRx-U3 Marine better than M20?
AsteRx-U3 Marine has no measurable advantages in this pair.
Specifications
Side by side
| Satellite positioning | ||
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS) | GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS) |
| Satellite systems supported | 6 | 6 |
| Tracking channels | 1,507 | 544 |
| SBAS (WAAS / EGNOS) | Yes | Yes |
| RTK positioning | Yes | — |
| RTK accuracy (horizontal) | 10 mm | — |
| Tilt compensation (IMU) | Yes | — |
| Dual-antenna heading | Yes | Yes |
| Correction sources | L-band / PPP, SBAS | NTRIP (internet), UHF radio, Cellular modem, L-band / PPP, SBAS |
| Built-in UHF radio | — | Yes |
| L-band / PPP corrections | Yes | Yes |
| Maps & navigation | ||
| Internal storage | — | 16 GB |
| Connectivity & safety | ||
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| Cellular modem (4G / LTE) | — | Yes |
| Battery & power | ||
| External power input | 5V; 3.3V | — |
| Build & durability | ||
| MIL-STD-810 | — | Yes |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 85 °C | 65 °C |
| Weight | — | 1,500 g |
| Width | 22 mm | 245 mm |
| Height | 17 mm | 45 mm |
| Depth | — | 157 mm |
| Housing material | Aluminium | Ruggedized enclosure IP68 |
