Mid-Range GNSS Receiver
SP20 GNSS RTK System
Multifunctional geodesic GNSS receiver with IMU 60°, built-in 4G modem, 5W data radio, NFC, and IP68 protection.
Multifunctional geodesic GNSS receiver with IMU 60°, built-in 4G modem, 5W data radio, NFC, and IP68 protection.
The SP20 is Spherefix's portable multifunctional GNSS receiver — a new-generation measurement engine supporting tilt measurement, NFC, built-in 4G modem, Bluetooth, WiFi, and a 5W data radio. Magnesium alloy construction with Linux OS and IP68 protection.
| Specification | Details |
|---|---|
| Hardware System | |
| Processor | ARM Cortex-A7 1.8GHz |
| Operating System | Linux |
| GNSS | |
| GPS | L1C/A, L1C, L2P(Y), L2C, L5 |
| GLONASS | L1, L2, L3 |
| BDS | B1I, B2I, B3I, B1C, B2a, B2b — PPP-B2b supported |
| GALILEO | E1, E5a, E5b, E6 — PPP-E6 supported |
| QZSS | L1, L2, L5 |
| SBAS | L1 |
| NavIC (IRNSS) | L5* (requires firmware support) |
| Channels | 1408 |
| Data Update Frequency | 5Hz typical | 20Hz max |
| Recapture Time | <1 second |
| Cold Boot | <30 seconds |
| Positioning Accuracy (RMS) | |
| Single GNSS | Horizontal: 1.5m | Vertical: 2.5m |
| DGPS | Horizontal: 0.4m | Vertical: 0.8m |
| RTK | Horizontal: ±(8mm+1ppm) | Vertical: ±(15mm+1ppm) |
| Static | Horizontal: ±(2.5mm+0.5ppm) | Vertical: ±(5mm+0.5ppm) |
| Speed Accuracy | 0.03 m/s |
| Time Accuracy | 20 ns |
| Tilt Compensation (60°) | ≤2cm |
| Communications | |
| Bluetooth | BR+EDR+BLE |
| WiFi | 802.11 b/g/n |
| NFC | Yes |
| 4G Network | LTE FDD: B1/2/3/4/5/7/8/12/13/18/19/20/25/26/28 | LTE TDD: B38/39/40/41 | WCDMA: B1/2/4/5/6/8/19 | GSM: B2/3/5/8 |
| Data Radio | Frequency: 410–470MHz | Power: 0.5W/1.5W | Protocol: TRIMTALK, TRIMMK3, SOUTH, TRANSEOT | Baud: 9600/19200bps |
| Storage | 32 GB |
| Battery | |
| Battery | 3.7V, 9600mAh |
| Working Time | More than 16 hours (Typical, Rover, GSM) | 24h static mode |
| Charging | MTK PE+1.1/2.0 (9V/2A) | USB PD 12V/1.25A | 5V/3A |
| Environment & Physical | |
| Working Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Anti-vibration | Resistant to 1.5m drop with pole at room temperature |
| Protection Rating | IP68 |
| Material | Magnesium alloy main body | ABS/PC top cover |
| Dimensions | Ø147.9mm × 68mm |
| Weight | 740 g |
The SP20 kit includes the C100T — a versatile data controller crafted specifically for the surveying sector. Features an 18-hour battery, IP68 protection, and a 5.45-inch sunlight-readable display. Runs Android 11 with 4GB RAM and 64GB ROM.