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TW3867 
GPS/QZSS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1 | 28 dB
- Very low Noise Preamp,
- Axial ratio: <2dB typ.; <1 dB at Zenith
- Tight Phase Center Variation
- LNA Gain 28 dB typ.
- Low current: 24 mA typ.
- ESD circuit protection: 15 KV
- Invariant performance from: +2.5 to 12VDC
The TW3867 employs Tallysman’s unique Accutenna® technology, covering GPS/QZSS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1, as well as SBAS (WAAS/EGNOS/MSAS).
Ideal for precision positioning and RTK surveying systems, the TW3867 provides excellent circular polarized signal reception, great multi-path and out-of-band signal rejection.
The TW3867 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 (LNA), then band-split for narrow filtering in each band and further amplified prior to recombination at the output.
The TW3867 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 offers custom tuning services to optimize the performance of the TW3867 for any OEM installation environment.
| Antenna Frequency | Dual Band GNSS |
| Mount | OEM / Embedded |
| Brand | Calian |
| Description | Part-Number |
|---|---|
| TW3867 | 33-3867-xx-yyyy |