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TW4422 
GPS/QZSS L1, GLONASS G1 | 28 dB
- Dual feed patch element
- Axial ratio: 2.5 dB Max.
- Low noise LNA: 1 dB
- High rejection mid-section SAW filter
- High gain: 28 dB typ.
- Wide voltage input range: 2.5 to 16 VDC
- IP67 weather proof housing
- Low Current: 9 mA typ.
The TW4422 employs Tallysman’s unique Accutenna® technology, covering GPS/QZSS L1, GLONASS G1, Gas well as SBAS (WAAS/EGNOS/MSAS).
Ideal for high accuracy applications while providing high out of band signal rejection, the TW4422 is the smallest dual feed, high performance antenna available, providing truly circular response over its entire bandwidth thereby producing superior multi-path signal rejection.
The TW4422 features a novel 25mm dual-feed wide-band patch element that provides a more linear carrier phase response by virtue of the axial ratio that is greatly improved across the full frequency bandwidth.
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 TW4422 also includes an LNA pre-filter, providing enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi.
The TW4422 is housed in a compact IP67 compliant enclosure that can be surface mounted via magnet, screws or adhesive material.
| Antenna Frequency | Single Band GNSS |
| Mount | Magnet / Adhesive |
| Brand | Calian |
| Description | Part-Number |
|---|---|
| TW4422 | 33-4422-xx-yyyy |