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TW 4421 Wideband GPS/GLONASS Antenna
TW 4421 Wideband GPS/GLONASS Antenna
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TW4421 Wideband Dual Feed GPS/GLONASS Antenna

Item# TW4421

The TW4421 is a low-cost, dual-feed GPS & GLONASS magnetic mount antenna by Tallysman Wireless covering the GPS L1, GLONASS G1 and SBAS (WAAS, EGNOS & MSAS) frequency bands. View Full Description

Category: L1 GPS
Manufacturer: Tallysman Wireless
Tallysman Wireless
 


 
 
 
 

TW4421 Wideband Dual-Feed GPS/GLONASS Antenna

This low-cost dual-feed GPS & GLONASS magnetic mount antenna by Tallysman Wireless covers the GPS L1, GLONASS G1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz). The TW4421 features a novel 25mm dual feed wideband patch element that provides excellent multipath rejection and a more linear carrier phase response by virtue of the axial ratio that is greatly improved across the full frequency bandwidth. It is especially suited to high accuracy applications; it also offers high out-of-band signal rejection.
 
The two feeds from the patch element are summed in a 90 degree hybrid then input to a first-stage Low-Noise Amplifier (LNA), followed by a mid-section SAW and a second low-noise gain stage.
 
The TW4421 is one of the smallest dual-feed, high-performance antennas available. It comes with a wide range of connector options and cable length and is housed in a compact IP67 magnetic mount enclosure.
 
Applications
  • Cost Sensitive Mission Critical Positioning
  • Military & Security
  • Covert surveillance
  • Fleet Management & Asset Tracking
Features
  • Dual feed patch element
  • 40% wider bandwidth, small footprint
  • Axial ratio: 3 dB Max. (GPS & GLONASS)
  • 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
Benefits
  • 1dB Bandwidth Includes GPS-L1 & GLONASS
  • Greatly enhanced multipath rejection
  • Improved GNSS reliability
  • Excellent signal to noise ratio
  • RoHS compliant
  • Ideal for harsh environments
  • Excellent out of band signal rejection