JS-HAC42A-F
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JS-HAC42A-F
UAV / Helical Antennas
Jumpstar JS-HAC42A-F Full-Constellation Full-Band Helical GNSS Active Antenna – High-Gain, IP65 Waterproof, Lightweight Antenna for UAV & Handheld Positioning Devices
Full-Constellation Full-Band Support
Covers GPS, BDS, GLONASS, GALILEO all-frequency satellite signals.
High-Gain & Low-Noise
37±3dB LNA gain, ≤2dB noise figure for stable weak-signal reception.
Lightweight & Compact
Only 27.3g, Φ44.8×42mm size for easy system integration.
360° Omnidirectional Coverage
Wide beamwidth, high gain at low elevation angles.
IP65 Waterproof
Waterproof when mated with SMA connector for outdoor use.
Plug-and-Play
Directly compatible with GNSS modules, no debugging required.
Full-Constellation Full-Band Helical GNSS Active Antenna
JS-HAC42A-F is a four-constellation full-frequency external handheld helical GNSS antenna that supports GPS, BDS, GLONASS and GALILEO full-band satellite signals, realizing global multi-system compatibility. It features a low-profile structure for high integration stability, and an optimized design for high gain and excellent radiation pattern in all directions.
With stable phase center and high dBi gain performance, it is widely used in surveying mapping, navigation scheduling, and especially ideal for light UAVs, aerial photography, remote telemetry, disaster monitoring and security surveillance scenarios.
The antenna is plug-and-play, IP65 waterproof, and lightweight (only 27.3g), making it perfect for outdoor handheld and UAV applications.
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Key Features
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Full-Band Multi-System Compatibility Supports GPS L1/L2/L5, BDS B1I/B1C/B2(I/Q)/B2b/B2a, GLONASS G1, GALILEO E1/E5/E5a/E5b.
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High-Gain Low-Noise Performance 37±3dB LNA gain, ≤2dB noise figure, VSWR ≤2.0 for reliable reception.
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Stable Phase & Omnidirectional 360° horizontal coverage, high gain at low elevation angles, no blind spots.
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Ultra-Light Integrated Design 27.3g net weight, Φ44.8×42mm compact size for UAVs and handheld devices.
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Industrial-Grade Environmental IP65 waterproof, -30℃~+70℃ operating temperature for harsh outdoors.
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Easy Installation & Use Standard SMA connector, screw fixing reserved, plug-and-play.
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Technical Specifications
Antenna RF Performance
| Antenna Type | Helical GNSS Active Antenna |
| Supported Signals | GPS(L1/L2/L5); BDS(B1I/B1C/B2(I/Q)/B2b/B2a); GLONASS(G1); GALILEO(E1/E5/E5a/E5b) |
| Impedance | 50Ω |
| Polarization | Right Hand Circular Polarization (RHCP) |
| Horizontal Coverage | 360° |
| VSWR | ≤2.0 |
| Noise Figure | ≤2dB |
| LNA Gain | 37±3dB |
Mechanical & Environment
| Dimensions | Φ44.8mm × 42mm |
| Weight | 27.3g |
| Connector | SMA Male |
| Mounting | Screw fixing (reserved) |
| Waterproof Rating | IP65 (with mated SMA connector) |
| Operating Temperature | -30℃ ~ +70℃ |
| Storage Temperature | -35℃ ~ +75℃ |
| Humidity | 0%~95% Non-condensing |
| Compliance | RoHS |
Typical Applications
High-Precision Surveying
Surveying, mapping & geodetic measurement
Navigation & Scheduling
Vehicle/airborne navigation and dispatching systems
Light UAV Aerial Survey
Aerial photography, remote telemetry for light UAVs
Traffic & Security
Traffic patrol, public security surveillance
Disaster Monitoring
Early warning & emergency command systems
Geographical Mapping
Geographic information systems & mapping
Handheld Terminals
Handheld high-precision positioning terminals
More Applications
Custom integration for other high-precision GNSS systems
Resources & Downloads
JS-HAC42A-F Datasheet
Complete specifications, gain pattern, mechanical drawing and electrical parameters
Mechanical Drawing
2D/3D mechanical dimensions and mounting specifications
Gain Pattern
Radiation pattern, axial ratio and VSWR curves
3D CAD Model
STEP, IGES and STL formats for mechanical integration
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