The TW2706 / TW2708 employs Tallysman’s unique Accutenna technology covering the BeiDou B1, Galileo E1, GPS L1, GLONASS L1 and SBAS (WAAS, QZSS, EGNOS & MSAS) frequency band (1557 to 1606 MHz). ). It is especially designed for precision industrial, agricultural and military OEM applications. It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. The TW2706 / TW2708 features a dual-feed wideband patch element, with one LNA per feed, a mid section Combiner and SAW filter, and a final output gain stage. A tight pre-filter is available with part number TW2708 to protect against saturation by high level sub-harmonics and L-Band signals The TW2706 / TW2708 is available with a variety of connectors and custom cable lengths. It is highly recommended to take advantage of Tallysman’s custom tuning service to ensure optimal performance of this antenna in your housing and with your ground plane. Note: This antenna is electronically identical to the TW2705/TW2707

Applications ：? High Accuracy & Mission Critical GNSS ? Precision Agriculture, Mining & Construction ? Military & Security ? Avionics ? Law Enforcement & Public Safety ? Fleet Management & Asset Tracking      Features ?： Covers B1 / E1 /L1 / G1 Frequencies ? Great axial ratio: 1 typ., 3 dB max ? Low noise LNA: ≤1 dB ? High rejection SAW filter ? LNA gain: 28 dB typ. ? Low current: 15 mA typ. ? Wide voltage input range: 2.5 to 16 VDC.    Benefits ：? Excellent multipath rejection ? Increased system accuracy ? Excellent signal to noise ratio ? Great out of band signal rejection ? Ideal for harsh environments ? RoHS compliant

  Antenna Architecture Dual, Quadrature Feeds 2 dB Bandwidth 49 MHz Antenna Gain (with 100mm ground plane) 4.75 dBic Axial Ratio at Zenith over full bandwidth <2 dB typ, ≤3 dB max Electrical Architecture One LNA per feed line, mid section SAW filter Filtered LNA Frequency Bandwidth 1557 to 1606 MHz Polarization RHCP LNA Gain 28 dB min. Gain flatness +/- 2 dB, 1557 to 1606 MHz Out-of-Band Rejection <1500 MHz >40 dB <1540 MHz >20 dB >1640 MHz >45 dB VSWR (at LNA output) <1.5:1 Noise Figure ≤1 dB typ. Supply Voltage Range (over coaxial cable) +2.5 to 16 VDC nominal (12VDC recommended maximum) Supply Current 15 mA typ., 22mA max. (@85°C) ESD Circuit Protection 15 KV air discharge Mechanicals & Environmental Mechanical Size 56 mm dia. x 7.8 mm H Cable RG174 Operating Temp. Range -40 to +85°C Weight 35 g Attachment Method Adhesive or screw mount Environmental RoHS compliant Shock Vertical axis: 50 G, other axes: 30 G Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G