TW8825, Magnetic L1/L5 GNSS antenna with Prefilter. Employing Tallysman‘s Accutenna® technology covering GPS L1 / L5, GLONASS G1, Galileo E1 / E5, BeiDou B1 / B2a, NavIC E5 and QZSS L1 / L5 as well as SBAS (WAAS / EGNOS / GAGAN / MSAS).
TW8825, Magnetic L1/L5 GNSS antenna with Prefilter 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
Tallysman TW8825 Benefits From:
Ideal for L1/L5 RTK survey systems
Great multi-path rejection
Increased system accuracy
Excellent signal-to-noise ratio
IP67, REACH and RoHS compliant
Ideal for dual frequency positioning where minimizing weight is important, the 52 gram TW8825 provides excellent axial ratio and tight Phase Centre Variation (PCV).
TW8825 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 TW8825 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.
The TW8825 is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.