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- CGI-230 vs eRTK20
CHCNAV CGI-230 vs eSurvey eRTK20
What CGI-230 does better (3) and where eRTK20 wins (0) — every spec side by side.
Dimensions
Size comparison
CGI-230eRTK20
| CGI-230 | eRTK20 | Difference | |
|---|---|---|---|
| Height | 350 mm | 74 mm | +276 mm |
| Width | 105 mm | 136 mm | −31 mm |
| Weight | 400 g | 890 g | −490 g |
Drawn to the same scale from the official dimensions (front and side).
Why is CGI-230 better than eRTK20?
- Weight400 g vs 890 g2.2×
- Operating temperature (min)-40 °C vs -30 °C+-25%
- Operating temperature (max)75 °C vs 65 °C+15%
Why is eRTK20 better than CGI-230?
eRTK20 has no measurable advantages in this pair.
Specifications
Side by side
| Satellite positioning | ||
| Satellite systems | — | GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC (IRNSS) |
| Satellite systems supported | — | 6 |
| Multi-band GNSS (L1 + L5/L2) | — | No |
| Frequency bands | — | L-band |
| Tracking channels | — | 1,408 |
| SBAS (WAAS / EGNOS) | — | Yes |
| RTK positioning | — | Yes |
| RTK accuracy (horizontal) | — | 8 mm |
| Tilt compensation (IMU) | Yes | Yes |
| Dual-antenna heading | Yes | — |
| Correction sources | — | NTRIP (internet), UHF radio, Cellular modem, L-band / PPP, SBAS |
| Built-in UHF radio | — | Yes |
| L-band / PPP corrections | — | Yes |
| Maps & navigation | ||
| Internal storage | — | 8 GB |
| Connectivity & safety | ||
| Bluetooth | — | Yes |
| Cellular modem (4G / LTE) | — | Yes |
| USB-C | — | Yes |
| Camera | — | Yes |
| Battery & power | ||
| Battery life | — | 11 h |
| Battery capacity | — | 5,800 mAh |
| Power source | — | Built-in rechargeable |
| Build & durability | ||
| Protection rating | — | IP67 |
| Water protection (IPx) | — | IPx7 |
| Drop resistance | — | 2 m |
| Operating temperature (min) | -40 °C | -30 °C |
| Operating temperature (max) | 75 °C | 65 °C |
| Weight | 400 g | 890 g |
| Width | 105 mm | 136 mm |
| Height | 350 mm | 74 mm |
| Depth | 154 mm | — |
