Tallysman TW4422 Single Band Magnetic GPS L1 Glonass G1 Pre-filtered Antenna

The TW4422 employs Tallysman’s unique Accutenna® technology covering GPS/QZSS L1, GLONASS G1, as well as SBAS (WAAS, EGNOS & MSAS).

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TW4422, Magnetic GPS L1 Glonass G1 Pre-filtered Antenna. Employing Tallysman‘s Accutenna® technology, TW4422 also covers QZSS L1 and SBAS (WAAS / EGNOS / MSAS).

Additionally the TW1422 is a compact, magnetic mount antenna.

TW4422, Magnetic GPS L1 Glonass G1 Pre-filtered Antenna Features:
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.

Tallysman TW1422 Benefits from:
1 dB Bandwidth
Greatly enhanced multi-path rejection
Improved GNSS reliability
Excellent signal to noise ratio
RoHS compliant
Ideal for harsh environments
Excellent out-of-band signal rejection

TW4422 has  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.

Signals from the two 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.

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.

Tallysman’s TW4422 is housed in a compact IP67 compliant enclosure that can be surface mounted via magnet, screws or adhesive material.

The non prefiltered version is the TW4421

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