TW3872, a dual band fixed mount prefiltered GNSS Antenna 35dB, covering GPS, Glonass, Galileo and Beidou Global Navigation Satellite Systems (GNSS).
TW3872 Dual Band Fixed Mount prefiltered GNSS Antenna 35dB features:
Low Noise Amplifier (LNA):< 2 dB
Axial ratio: < 2 dB typ.
Tight Phase Center Variation (PCV)
High Gain: 35 dB typ.
Low current: 24 mA typ.
Invariant performance from: +2.5 to 16VDC
Tallysman’s TW3872 Coverage:
GPS L1 / L2
GLONASS G1 / G2
SBAS WAAS / EGNOS / MSAS
Tallysman’s TW3872 benefits from:
Ideal for L1/L2 RTK surveying systems
Great multi-path rejection
Increased system accuracy
Great signal to noise ratio
IP67, REACH, and RoHS compliant
TW3872 provides excellent circular polarized signal reception, great multi path and out of band signal rejection. As a result TW3872 is ideal for precision positioning and RTK surveying systems.
TW3872 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 Low Noise Amplifier, then band-split for narrow filtering in each band and further amplified prior to recombination at the output.
Tallysman’s TW3872 also includes an LNA pre-filter, providing enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.
Tallysman’s TW3872 offers excellent axial ratio and a tightly grouped phase center variation.
TW3872 is housed in a permanent mount industrial grade weather-proof enclosure, available in conical or flat radome styles and in grey or white colours. Two options for pole mounting are available an L-Bracket or a Pipe Mount. A 100mm ground plane is recommended for non-roof-top installations.
TW3870 is available without the Prefilter