Tallysman TW3400/TW3402 GNSS Antennas
The TW3400/TW3402 are professional grade GNSS antenna covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz). They are especially designed for precision industrial, agricultural and military applications and offers excellent circular polarized signal reception, multipath rejection and out of band signal rejection.
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The TW3400/TW3402 feature a highly circular 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.
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An optional tight pre-filter is available on the TW3402 to protect against saturation by high level sub-harmonic and L-Band signals.
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The TW3400/TW3402 is housed in a permanent mount industrial grade weather-proof enclosure, and comes with a TNC Jack (female) connector.
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- Features:
- Great axial ratio: 1 dB typ.
- Low noise LNA: 1 dB
- High rejection SAW filter
- High gain LNA: 28 dB typ.
- Low current: 10 mA typ.
- Wide voltage input range: 3 to 12 VDC
- Weather proof housing: IP67
LNA Pre-filterÂ
If you need enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi, select Pre-Filter for this product. If you have questions, contact us.Â
To minimize performance impact from signal jamming threats, the pre-filtered version of this antenna is compatible with Tallysman’s Anti-Jamming add-on, which modifies the radiation pattern of the GNSS antenna to eliminate signals arriving from -10° to +15° from horizon, while slightly increasing the gain of the antenna at zenith.