The GPS500 is a three-system, seven-frequency external measurement antenna encompassing GPS, GLONASS...
External measurement antenna GPS500
The GPS500 is a three-system, seven-frequency external measurement antenna encompassing GPS, GLONASS, and BDS, meeting the current requirements for multi-system compatibility in measurement equipment. It can be widely used in geodetic surveying, marine surveying, waterway surveying, dredging surveying, earthquake monitoring, bridge deformation monitoring, landslide monitoring, and port container operations, among other applications.
Tracking in complex environments
The antenna unit features high gain and a wide beam pattern, ensuring strong signal reception even at low elevation angles. This guarantees rapid satellite lock-on and stable GNSS navigation signal output even in complex environments with obstructions such as forests or buildings.
Key Features
● Supports full-band GNSS four-system signals.
● Reliable structure with IP67 protection rating.
●Strong anti-interference capability and can withstand harsh working environments.
●Stable phase center ensures millimeter-level positioning accuracy.
Compact size
Its dimensions are only φ152*62.2mm. Robust and reliable construction with an IP67 protection rating, protecting it from dust, UV rays, and water. It also features a standard TNC male connector for easy integration.
Strong anti-interference performance
The LNA antenna has excellent out-of-band rejection performance, which can suppress unwanted electromagnetic wave signals,
preventing the receiver from being interfered with by other wireless communication systems, and effectively reducing the risk of system loss of lock-on,
such as electromagnetic wave interference from power grids, communication base stations, radio stations, etc.
Highly stable phase center
The antenna section adopts a multi-feed design to achieve the coincidence of the phase center and the geometric center, minimizing the antenna's impact on measurement errors.
Performance parameters
Antenna characteristics | |
Frequency range | GPS L1/L2 GLONASS L1/L2 BDS B1/B2/B3
|
Impedance | 50 ohms |
polarization mode | Right-hand circular polarization |
Antenna axial ratio | ≤3dB |
Horizontal plane coverage angle | 360° |
Output standing wave | ≤2.0 |
Maximum gain | 5.5dBi |
Phase center error | ±2mm |
Low noise amplifier specifications | |
Gain | 40±2dB |
Noise figure | ≤2dB |
Output standing wave | ≤2.0 |
Inner flatness | ±2dB |
Operating voltage | +3.3~+12VDC |
Operating current | ≤45mA |
Differential transmission delay | ≤5ns |
Structural characteristics | |
Antenna size | Φ152*62.2mm |
weight |
≤500g
|
Connector type | TNC vulva |
Installation method | For centering rod installation, thread specification: British standard coarse thread 5/8"-11, height 12-14mm. |
Work environment | |
Operating temperature | -40℃~+85℃ |
Storage temperature | -55℃~+85℃ |
Humidity | 95% non-condensing |
Product three-view drawing (dimensional tolerance ±0.3mm)

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