CHCNAV iBase GNSS RTK Base Station for Accurate Positioning
· Long-distance UHF radio coverage
· Durable waterproof field construction
· Steady high-precision differential data
ABOUT US
Chengdu Enbao Co., Ltd. has over 20 years of experience in the surveying instrument industry and is a professional domestic enterprise in this field. Equipped with advanced production, processing and testing facilities, we focus on the research, development and manufacture of the latest surveying instruments, including RTK receivers, total stations, electronic the odolites, levels and supporting accessories. We keep upgrading and optimizing our products based on mature traditional technologies to achieve superior performance and reliable quality. We sincerely offer premium products and thoughtful services to clients woridwide.
Company collaboration
PRODUCT DESCRIPTION
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13 H+ Worry Free Work
DistLink uses CHCNAV's proprietary data compression algorithm to reduce data volume and lower radio power demand. This delivers more than 13 hours of nonstop operation and over 60% longer battery endurance for efficient all day surveying, with no mid task interruptions and no extra batteries needed.
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30 KM Coverage
Powered by DistLink technology, the iBase uses CHCNAV's GNSS differential corrections compression algorithm to reduce transmission bandwidth and improve rover radio sensitivity by 30%. It delivers up to 30 km of coverage and maintains stable links in complex terrain.
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Auto Switch and Fast Fix
Ultra Base mode transmits differential data through radio and network at the same time. AI powered auto pairing chooses the optimal channel or server at startup for fast fixed solutions. Automatic switching to network mode beyond radio range keeps surveying continuous and efficient.
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Advanced Multipath Mitigation
Improve positioning accuracy with advanced multipath mitigation algorithms. The iBase ensures that high-quality GNSS corrections are transmitted to rovers for optimal performance in challenging environments.
iBaseAll-Day GNSS Station
13 H+ Runtime
DistLink Technology
Ultra Base
Premium GNSS
Full Set of Accessories
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CHCNAV iBase
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Battery
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Aluminum Disc
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Radio Antenna
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Charger
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Extension Pole
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User Guide
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High-Strength Instrument Case
CHCNAV iBase GNSS Base Station Specifications
All‑in‑One GNSS Reference Station Receiver for Surveying & Mapping
GNSS PERFORMANCE(1)
| Channels | 1408 channels |
| GPS | L1C/A, L2C, L2P(Y), L5 |
| GLONASS | L1, L2, L3* |
| Galileo | E1, E5a, E5b, E6* |
| BeiDou | B1I, B2I, B3I, B1C, B2a, B2b* |
| QZSS | L1C/A, L1C, L2C, L5 |
| NavIC / IRNSS | L5 |
| PPP | B2b‑PPP*, E6B‑HAS* |
| SBAS | L1, L5* |
GNSS ACCURACIES(2)
| Real‑time kinematic (RTK) | Horizontal: 8 mm + 1 ppm RMS Vertical: 15 mm + 1 ppm RMS Initialization time: < 10 s Initialization reliability: > 99.9% |
| Post‑processing kinematic (PPK) | Horizontal: 3 mm + 1 ppm RMS Vertical: 5 mm + 1 ppm RMS |
| Post‑processing static | Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm + 0.5 ppm RMS |
| High‑precision static | H: 2.5 mm +0.1 ppm RMS V: 3.5 mm +0.4 ppm RMS |
| Static and rapid static | H: 2.5 mm +0.5 ppm RMS V: 5 mm +0.5 ppm RMS |
| Code differential | Horizontal: 0.4 m RMS Vertical: 0.8 m RMS |
| Autonomous | Horizontal: 1.5 m RMS Vertical: 2.5 m RMS |
| Positioning rate | Up to 10 Hz |
| Time to first fix(6) | Cold start: < 45 s; Hot start: < 10 s Signal re‑acquisition: < 1 s |
| IMU update rate | 200 Hz, AUTO‑IMU |
| Tilt angle | 0‑60° |
| RTK tilt‑compensated | Additional horizontal pole‑tilt uncertainty typically less than 8 mm +0.7 mm/° tilt down to 30° |
HARDWARE
| Size (L × W × H) | Φ160.5 mm × 103 mm (Φ 6.32 in × 4.06 in) |
| Weight | 1.73 kg (3.81 lb) |
| Temperature | Operating:‑40℃ ~ +65℃ (-40℉ ~ +149℉) Storage:‑40℃ ~ +85℃ (-40℉ ~ +185℉) |
| Humidity | 100% non‑condensation |
| Ingress protection | IP67 waterproof and dustproof, protected from temporary immersion to depth of 1 m |
| Shock | Survive a 2‑meter pole drop |
| Tilt sensor | E‑Bubble leveling |
| Front panel | 2 LED; 0.96" OLED Display |
COMMUNICATION
| Network modem | Integrated 4G modem LTE (FDD): B1,B2,B3,B4,B5,B7,B8,B20 DC‑ HSPA+/HSPA+/UMTS: B1,B2,B5,B8 EDGE/GPRS/ GSM850/900/1800/1900MHz |
| Wi‑Fi | 802.11 n/b/g, access point mode |
| Bluetooth® | v5.0 |
| Others | NFC |
| Ports | 1 × 7‑pin LEMO port (external power, RS‑232) 1 × UHF antenna port (TNC female) |
| DistLink technology(4) | The new‑generation UHF radio data transmission mode of CHCNAV enables GNSS RTK Base all‑day operation and long‑distance range. |
| UHF radio(5) | Standard Internal Rx/Tx:410‑470 MHz Transmit Power: up to 5 W Protocol: CHC, DistLink, Transparent, TT450, Satel Link rate:9600 bps /19200 bps Range: Typical 8 km‑12 km opt, up to 30 km with DistLink Typical 5 km‑8 km opt, up to 25 km with other protocols. |
| Ultra Base(3) | Simultaneous radio and network differential data transmission |
| Data formats | RTCM2.x, RTCM3.x, CMR input / output HCN, RINEX2.11,3.02 NMEA 0183 output NTRIP Client, NTRIP Caster |
| Data storage | 8 GB memory |
ELECTRICAL
| Power consumption | 12 W (depending on user settings) |
| Li‑ion battery capacity | 2 × 7000 mAh, 7.4 V |
| Operating time on internal battery(7) | UHF base: up to 13 h (DistLink). 8 h to 10 h (other protocols). Static up to 25 h |
| External power input | 9 V DC to 28 V DC |
COMPLIANCE WITH LAWS AND REGULATIONS
| International standards | NGS Antenna Calibration IEC 62133‑2:2017+A1, IEC 62368‑1:2014, EN 62368‑1:2014+A11:2017, UN Manual Section 38.3 |
*All specifications are subject to change without notice.
(1) Compliant but subject to availability of BDS‑3, GALILEO, QZSS and IRNSS commercial service signals. SBAS L5 will be provided through future firmware upgrade.
(2) Accuracy and reliability are determined under open‑sky, free of multipath obstacles, optimal GNSS geometry and atmospheric condition. Performance assumes minimum of 5‑satellites, follow‑up of recommended general GPS practices.
(3) All test values above are from CHC‑Navigation internal labs under typical conditions. Actual results may vary due to product differences, software versions, usage, and environmental factors.
(4) The use of UHF datalink may be subject to local radio regulations. Users must ensure that the device is operated on those specifically reserved and intended for use without requred permit.
(5) Will be enabled in a future firmware upgrade, dependent on existing server coverage availability.
(6) Battery‑life is subject to operating temperature, environment, and working mode.