High-Performance TCA920 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, IRNSS and SBAS correction service. The 2D 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 2D 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 TCA903 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.
| 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)
What satellite signals does the TCA930 Choke Ring Antenna track?
The TCA930 tracks full frequency satellite signals, 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).
What applications are best suited for the TCA930 Choke Ring Antenna?
It is specifically designed for high-accuracy applications such as CORS base stations, land and marine surveying, channel surveying, earthquake and landslide monitoring, structural deformation monitoring, and wharf container operations.
How does the TCA930 manage multipath interference?
The antenna features a unique 2D choke ring design combined with patented multi-point feeding technology. This achieves sub-millimeter phase center stability and exceptional multipath reduction across all GNSS bands.
Can the antenna operate reliably near communication towers and power grids?
Yes, the built-in LNA offers excellent out-of-band rejection to suppress electromagnetic interference (EMI), preventing signal disruption or disconnection when operating near communication base stations or radio modems.
What is the environmental durability rating of the TCA930?
The TCA930 has an IP67-rated dustproof and waterproof cover made of GFRP. It is designed to withstand harsh environments with a wide operating temperature range of -40°C to +85°C and has an MTBF of over 30,000 hours.