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Alpha 4i

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The Alpha 4i GNSS Receiver is a compact, high-precision GNSS receiver for land surveying and construction. Featuring an IMU tilt sensor, an 8cm positioning antenna, and an advanced SoC chip, it delivers superior accuracy. With a nano-material and aluminum alloy housing, it ensures durability while reducing workloads by 50%. Whether for land surveying equipment or a GPS set for construction, the Alpha 4i is the top choice for professionals.

✅ Channels	1408
✅ IMU Tilt Sensor	60°
❌ Internet Modem	None
✅ UHF Radio	410 – 470MHz
GPS	L1C/A, L1C, L2C, L2P, L5
GLONASS	G1/G2/G3
GALILEO	E1, E5a, E5b, E6
BEIDOU	B1I, B2I, B3I, B1C, B2a, B2b

Datasheets and manuals

Datasheet

Alpha 4i Datasheet

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Alpha 4i

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SKU: alpha-surveying-4i Categories: GPS & GNSS, RTK GNSS Receivers

Brand:Alpha Surveying

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4.73 store rating (546 reviews) | 4.67 product rating

MANAGE YOUR RTK - CONNECT ANY NETWORK

Alpha 4i Product Review

Enhance Accuracy with the Alpha 4i GNSS Receiver

The Alpha 4i GNSS Receiver is a compact, high-performance solution for land surveying and construction. With cutting-edge technology, it reduces workloads by 50% while maintaining exceptional precision and durability.

GNSS receiver with IMU tilt sensor

Cutting-Edge Technology

Full-Frequency 8cm Positioning Antenna

This RTK GNSS Receiver features an 8cm full-frequency antenna, a breakthrough in compact design without sacrificing performance. It ensures fast, stable connectivity in complex environments, reliable signal lock at low elevations, and enhanced accuracy with high-gain widebeam technology.

Next-Gen Global Positioning SoC Chip

Equipped with the NebulasIV baseband and high-precision algorithm, the Alpha 4i provides independent frequency tracking for stability and 60 dB anti-interference, ensuring reliable performance even in weak signal areas.

Reliable Military-Grade RTOS

The Alpha 4i GNSS Receiver with IMU tilt sensor integrates a real-time operating system (RTOS), ensuring full RTK compatibility, low power consumption, and rugged reliability in demanding conditions.

GPS set for construction

Key Benefits of the Alpha 4i

50% Less Workload: Streamlines field tasks, saving time.
Superior Signal Strength: 8cm full-frequency antenna ensures strong satellite connectivity.
Durable Build: Nano-material & aluminum alloy housing withstands tough conditions.
Tilt Compensation: IMU tilt sensor enables precise measurements on uneven surfaces.
Advanced Positioning Engine: Next-gen SoC chip ensures accuracy even in weak-signal areas.