33-2405-05-0150

A Tallysman Accutenna® Antenna TW2405/TW2407 Embedded GPS/GLONASS Antenna The TW2405/TW2407 employs Tallysman’s unique Accutenna technology covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1574 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 TW2405/TW2407 features a dual-feed wideband patch element, with a two stage Low Noise Amplifier, comprised of one input LNA per feed, a mid section SAW to filter the combined output, and a final output gain stage. This configuration provides excellent axial ratio that is constant across the full frequency band. An optional tight pre-filter is available with part number TW2407 to protect against saturation by high level sub-harmonics and L-Band signals. The TW2405 /TW2407 comes in a compact circular form factor with a built-in 56 mm diameter ground plane. Also consider the TW2406 / TW2408 which have a more secure mounting method. The TW2406 / TW2408 is electronically identical to the TW2405 / TW2407. The TW2406 / TW2408 has a larger PCB with drilled holes for more secure mounting. You can view these on the Tallysman website. Applications • • • • • • High Accuracy & Mission Critical GPS Precision Agriculture, Mining & Construction Military & Security Avionics Law Enforcement & Public Safety Fleet Management & Asset Tracking Features • • • • • • • Great axial ratio: ≤1 dB typ. 2 dB max. Low noise LNA: 1 dB High rejection SAW filter High gain: 28 dB typ. Low current: 10 mA typ. ESD circuit protection: 15 KV Wide voltage input range: 2.5 to 16 VDC Benefits • • • • • • Excellent multipath signal rejection Increased system accuracy Excellent signal reception Great out of band signal rejection Compact form factor RoHS compliant TW2405/TW2407 Embedded GPS/GLONASS Antenna Specifications: Vcc = 3V, over full bandwidth, T=25°C Antenna Architecture 0.5 dB Bandwidth Antenna Gain (with 100mm ground plane) Axial Ratio Electrical Architecture Filtered LNA Frequency Bandwidth Polarization Gain Gain flatness Out-of-Band Rejection 32 dB (TW2405) >50dB (TW2407) >25 dB (TW2405) >50 dB (TW2407) >35 dB (TW2405) >70 dB (TW2407)