TW1825 Accutenna® Pre-Filtered Embedded Dual-Band GNSS Antenna
Antennas
Coverage
GPS L1/L5, GLONASS G1, Galileo E1/E5a, BeiDou B1/B2a, NavIC L5
Mount
OEM / Embedded
Amplifier Gain
26 dB typ.
Connector Options
Many Options, Please Inquire
Overview
The TW1825 employs Calian’s unique Accutenna® technology, covering GPS/QZSS L1/L5, GLONASS G1, Galileo E1/E5, BeiDou B1/B2a, NavIC E5 as well as SBAS (WAAS/EGNOS/GAGAN/MSAS).
Features
- Very low Noise Preamp, 2.5 dB
- Axial ratio: <2 dB typ.
- Tight Phase Center Variation
- LNA Gain 26 dB typ.
- Low current: 12 mA typ.
- ESD circuit protection: 15 KV
Benefits
- Lightweight (37g)
- Ideal for L1/L5 RTK survey systems
- Great multi-path rejection
- Increased system accuracy
- Excellent signal-to-noise ratio
- IP67, REACH and RoHS compliant
Details
Ideal for dual frequency positioning where minimizing weight is important, the 37-gram TW1825 provides excellent axial ratio and tight Phase Centre Variation (PCV).
The TW1825 features a precision tuned, circular dual feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wide-band LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output.
The TW1825 also includes an LNA pre-filter that provides enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.
Calian offers custom tuning services to optimize the performance of the TW1825 for any OEM installation environment.
Drawings
