High-Performance TCA930 Choke Ring Antenna - China Suppliers and Factory for GNSS Positioning Solutions
TCA930 Choke Ring Antenna
APEKS TCA930 Choke Ring Antenna is a high-performance GNSS antenna for base stations that covers full-frequency satellite signal tracking of GPS, GLONASS, GALILEO, BDS, QZSS, IRNSS, and SBAS correction services. The 3D Choke Ring Antenna, with strong multipath suppression performance, is specifically designed for applications such 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 the TCA930 ensures excellent multipath reduction performance across all GNSS frequency bands, including L-Band. The antenna features patented multi-point feeding technology to achieve greater phase center stability, effectively improving measurement accuracy. It is ideal for applications at 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 beamwidth makes the TCA930 an excellent choice for tracking visible satellites. It provides stable and precise GNSS data under complex conditions, such as obstructed environments with tree lines or construction.
Strong Anti-interference Performance
The antenna LNA features excellent out-of-band rejection performance, which suppresses EMI to provide the stability and reliability of GNSS signals. Additionally, it effectively avoids disconnection risks when receivers are interfered with by wireless communication systems, such as power grids, communication base stations, or radio modem applications.
More Ruggedized for Long-Lasting Durability
The TCA930 cover is made of GFRP material, making it structurally strong and reliable. The newly designed choke rings are treated with a robust double-treatment process for longer-lasting durability in harsh environments. The IP67 ruggedized cover is also designed to provide added protection for the internal antenna against dust and water. The antenna MTBF is over 30,000 hours, ensuring long-term outdoor operation in challenging environments with high/low temperatures, high humidity, and high salt fog.
| 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)
Q1: Which GNSS constellations and frequency bands does the TCA930 Choke Ring Antenna support?
The TCA930 supports full-frequency satellite signal tracking across major constellations, including 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), and NavIC/IRNSS (L5).
Q2: Why is the phase center stability of the TCA930 antenna critical for monitoring applications?
The antenna features patented multi-point feeding technology and a unique 3D choke ring design to achieve sub-millimeter phase center stability. This extreme level of stability is crucial for high-precision applications like CORS stations, bridge and building deformation monitoring, and geological hazard tracking where millimeters matter.
Q3: How does the TCA930 perform in heavily obstructed environments?
It features a strong capability to receive low-elevation signals with high gain and a wide beamwidth. This ensures the antenna can reliably track visible satellites and maintain stable, precise GNSS data even in challenging environments like dense tree lines or active construction sites.
Q4: How does the antenna protect against electromagnetic interference (EMI)?
The antenna LNA is designed with exceptional out-of-band rejection performance. This suppresses EMI and prevents signal disconnection, ensuring reliable operation even when positioned near wireless communication systems, power grids, or communication base stations.
Q5: What environmental protection and durability features does the TCA930 offer?
The antenna housing is made of structurally strong GFRP material with double-treated choke rings. It features an IP67-rated cover that keeps out dust and water. With an MTBF of over 30,000 hours, it is built to withstand extreme temperatures (-40℃ to +85℃), high humidity, and high salt fog during long-term outdoor installations.