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- i83 vs AsteRx-U3 Marine
CHCNAV i83 vs Septentrio AsteRx-U3 Marine
What i83 does better (3) and where AsteRx-U3 Marine wins (1) — every spec side by side.
vs
4.9Positioning7.1
4.0Durability2.4
Dimensions
Size comparison
i83AsteRx-U3 Marine
| i83 | AsteRx-U3 Marine | Difference | |
|---|---|---|---|
| Height | 78 mm | 45 mm | +33 mm |
| Width | 152 mm | 245 mm | −93 mm |
| Depth | 152 mm | 157 mm | −5 mm |
| Weight | 1,150 g | 1,500 g | −350 g |
Drawn to the same scale from the official dimensions (front and side).
Why is i83 better than AsteRx-U3 Marine?
- Tracking channels1,408 vs 5442.6×
- Weight1,150 g vs 1,500 g+30%
- Operating temperature (min)-40 °C vs -30 °C+-25%
Why is AsteRx-U3 Marine better than i83?
- Satellite systems supported5 vs 6+20%
Specifications
Side by side
| Satellite positioning | ||
| Satellite systems | GPS, GLONASS, Galileo, BeiDou, QZSS | GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS) |
| Satellite systems supported | 5 | 6 |
| Multi-band GNSS (L1 + L5/L2) | Yes | — |
| Frequency bands | L1, L2, L5, E1, E5a, E5b, E6, B1, B2, B3 | — |
| Tracking channels | 1,408 | 544 |
| SBAS (WAAS / EGNOS) | Yes | Yes |
| RTK positioning | Yes | — |
| Tilt compensation (IMU) | Yes | — |
| Dual-antenna heading | — | Yes |
| Correction sources | NTRIP (internet), SBAS | NTRIP (internet), UHF radio, Cellular modem, L-band / PPP, SBAS |
| Built-in UHF radio | — | Yes |
| L-band / PPP corrections | — | Yes |
| Raw data logging (RINEX) | Yes | — |
| Maps & navigation | ||
| Internal storage | — | 16 GB |
| Connectivity & safety | ||
| Wi-Fi | Yes | Yes |
| Bluetooth | — | Yes |
| Cellular modem (4G / LTE) | — | Yes |
| Battery & power | ||
| Battery life | 18 h | — |
| Battery capacity | 9,600 mAh | — |
| Power source | Removable rechargeable pack | — |
| Build & durability | ||
| Protection rating | IP67 | — |
| Water protection (IPx) | IPx7 | — |
| MIL-STD-810 | — | Yes |
| Drop resistance | 2 m | — |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 65 °C | 65 °C |
| Weight | 1,150 g | 1,500 g |
| Width | 152 mm | 245 mm |
| Height | 78 mm | 45 mm |
| Depth | 152 mm | 157 mm |
| Housing material | — | Ruggedized enclosure IP68 |
