High-Performance TCA930 Choke Ring Antenna from China Suppliers and Factory for GNSS Systems
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, NavIC (IRNSS) and SBAS correction service. The 3D Choke Ring Antenna with strong multipath suppression performance is 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 environments 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 dangers when receivers are being interfered by wireless communication systems, for example power grid, communication base station or radio modem applications.
More Ruggedized for Long Lasting 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 the inside antenna to avoid dust and water. The antenna MTBF is over 30,000 hours, which ensures long-time outdoor operation in challenging environments of high/low temperature, 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) |
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| 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
What satellite signals can the TCA930 Choke Ring Antenna track?
The TCA930 supports full frequency satellite signal tracking, 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).
How does the 3D choke ring design improve measurement accuracy?
The unique 3D choke ring design provides excellent multipath reduction performance across all GNSS frequency bands. Combined with patented multi-point feeding technology, it achieves sub-millimeter phase center stability, effectively reducing measurement errors.
Is the TCA930 suitable for tracking in obstructed environments?
Yes. The antenna features high gain and a wide beam width, allowing it to track low elevation signals and provide stable, precise GNSS data under complex conditions such as tree lines or construction sites.
How does the antenna handle interference from nearby wireless networks?
The antenna LNA features excellent out-of-band rejection to suppress electromagnetic interference (EMI). This prevents signal disconnection issues when the receivers operate near communication base stations, power grids, or radio modems.
What is the durability and lifespan of the TCA930 under harsh outdoor conditions?
The TCA930 features a GFRP cover, double-treated choke rings, and an IP67 protection rating against dust and water. It has an MTBF (Mean Time Between Failures) of over 30,000 hours, ensuring reliable performance in extreme temperatures (-40℃ to +85℃), high humidity, and salt fog environments.