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- Reach RS4 vs AsteRx-U3 Marine
Emlid Reach RS4 vs Septentrio AsteRx-U3 Marine
What Reach RS4 does better (1) and where AsteRx-U3 Marine wins (0) — every spec side by side.
vs
9.7Positioning7.1
9.2Durability2.4
Why is Reach RS4 better than AsteRx-U3 Marine?
- Operating temperature (min)-40 °C vs -30 °C+-25%
Why is AsteRx-U3 Marine better than Reach RS4?
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 |
| Multi-band GNSS (L1 + L5/L2) | Yes | — |
| Frequency bands | L1, L2, L5, E1, E5a, E6, B1, B2, B3 | — |
| Tracking channels | — | 544 |
| SBAS (WAAS / EGNOS) | — | Yes |
| RTK positioning | Yes | — |
| RTK accuracy (horizontal) | 7 mm | — |
| Tilt compensation (IMU) | Yes | — |
| Dual-antenna heading | — | Yes |
| Correction sources | NTRIP (internet), UHF radio, LoRa radio | NTRIP (internet), UHF radio, Cellular modem, L-band / PPP, SBAS |
| Built-in UHF radio | Yes | Yes |
| L-band / PPP corrections | — | Yes |
| Maps & navigation | ||
| Internal storage | — | 16 GB |
| Connectivity & safety | ||
| Wi-Fi | — | Yes |
| Bluetooth | — | Yes |
| Cellular modem (4G / LTE) | — | Yes |
| USB-C | Yes | — |
| Battery & power | ||
| Battery life | 16 h | — |
| Build & durability | ||
| Protection rating | IP68 | — |
| Water protection (IPx) | IPx8 | — |
| MIL-STD-810 | — | Yes |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 65 °C | 65 °C |
| Weight | — | 1,500 g |
| Width | — | 245 mm |
| Height | — | 45 mm |
| Depth | — | 157 mm |
| Housing material | Magnesium alloy | Ruggedized enclosure IP68 |
