High Gain TCA930 Choke Ring Antenna - China Suppliers and Factory for GNSS Systems and Precision Positioning
TCA930 Choke Ring Antenna
APEKS TCA930 Choke Ring Antenna is a high performance GNSS antenna for base station that covers full frequency satellite signal tracking of GPS, GLONASS, GALILEO, BDS, QZSS, IRNSS and SBAS correction service. The 3D Choke Ring Antenna with strong multipath suppression performance that specifically designed for applications as land and marine surveying, channel surveying, earthquake and landslide monitoring, deformation monitoring, and wharf container operations that require absolute positioning accuracy and multi-constellation support.
High Phase Center Stability
The unique 3D choke ring design of TCA930 ensures an excellent multipath reduction performance across all GNSS frequency bands including L-Band. And the antenna features the patented multi-point feeding technology to achieve greater phase center stability and hence effectively improve measurement accuracy. It is ideal for applications of CORS stations, bridge and building deformation monitoring or geological monitoring due to its sub-millimeter phase center stability.
Track in Challenging Environments
The strong ability to receive low elevation signals with high gain and wide beam width makes TCA930 an excellent choice for tracking visible satellites and provide stable and precision GNSS data under complex environments, such as obstructed environment of tree lines or construction.
Strong Anti-interference Performance
The antenna LNA features an excellent out-of-band rejection performance, which can suppress the EMI, providing the stability and reliability of GNSS signals. Also, it effectively avoids disconnection dangerous when receivers are being interfered by wireless communication systems, for example power grid, communication base station or radio modem applications.
More Ruggedized for Durability
The TCA930 cover is made of GFRP material and is structurally strong and reliable. The newly designed choke rings are treated with a more robust double treatment for longer lasting durability in harsh environments. The IP67 ruggedized cover is also designed for added protection for inside antenna avoid from dust and water. The antenna MTBF is over 30000 hours, which ensures long-time outdoor operation in challenging environments of high low temperature, high humidity and high salt fog.
| Specifications | |
|---|---|
| Signal Tracking | |
| GPS | L1/L2/L5/L-Band |
| GLONASS | L1/L2/L3 |
| GALILEO | E1/E5a/E5b/E6 |
| BDS | B1/B2/B3 |
| QZSS | L1/L2/L5/L6 |
| SBAS | L1/L5 |
| NavIC (IRNSS) | L5 |
| LNA | |
| Nominal Impedance | 50Ω |
| Polarization | RHCP |
| Axial Ratio | ≤2dB |
| Gain at Zenith (90°) | 1164-1300MHz 7.0dBi (maximum) 1525-1615MHz 6.5dBi (maximum) |
| LNA Gain | 50dB (typical) |
| Noise Figure | ≤2dB |
| Output/input VSWR | ≤2.0 |
| Operation Voltage | +3.3VDC to +12VDC |
| Operation Current | 60mA (maximum) |
| Group Delay Ripple | <5ns |
| Physical | |
| Dimensions | 79mm*312mm |
| Connector | TNC female |
| Weight | ≤10.5KG |
| Mounting | BSW5/8"-11 screw, depth >22mm |
| Environmental | |
| Temperature | Operating -40℃ to +85℃ Storage -55℃ to +85℃ |
| Humidity | 95% non-condensing |
| Protection | IP67 |
| Regulatory Compliance | IGS, NGS, CE, FCC, RoHS |
Frequently Asked Questions (FAQ)
1. What satellite signals does the TCA930 Choke Ring Antenna support?
The TCA930 supports full frequency satellite signal tracking, covering GPS (L1/L2/L5/L-Band), GLONASS (L1/L2/L3), GALILEO (E1/E5a/E5b/E6), BDS (B1/B2/B3), QZSS (L1/L2/L5/L6), NavIC (IRNSS L5), and SBAS correction services.
2. How does the antenna achieve such high phase center stability?
The TCA930 features a unique 3D choke ring design combined with patented multi-point feeding technology. This design reduces multipath interference and delivers sub-millimeter phase center stability, making it ideal for high-precision measurement applications like CORS stations and bridge monitoring.
3. Can the TCA930 operate reliably in obstructed environments?
Yes. The antenna is designed to receive low elevation signals with high gain and a wide beam width, ensuring stable and precise GNSS data tracking even in complex environments with tree lines or tall construction.
4. How does the antenna handle electromagnetic interference (EMI)?
The antenna features a Low Noise Amplifier (LNA) with excellent out-of-band rejection performance. This helps suppress EMI and prevents signal disconnection when operating near wireless communication systems, power grids, or communication base stations.
5. What makes the TCA930 durable for long-term outdoor installations?
It features a rugged IP67 cover made of GFRP material and double-treated choke rings designed to withstand harsh weather. With an MTBF of over 30,000 hours, it operates reliably in extreme temperatures (-40℃ to +85℃), high humidity, and high salt fog environments.