Tallysman’s TW4421 is an inexpensive wideband dual-feed GLONASS/GPS antenna that covers the GLONASS L1, GPS L1, and SBAS (i.e. EGNOS/MSAS/WAAS) 1575 to 1606 MHz frequency bands. Its advanced patch element (25mm dual-feed wideband) offers outstanding multipath rejection.
The unit provides high linear carrier phase response over the entire frequency bandwidth due to a greatly improved axial ratio. Thus, it is particularly appropriate for high precision applications. Out-of-band signal rejection is also excellent.
The patch element’s dual feeds are added together in a 90-degree hybrid unit and then transmitted to a first-stage low noise amplifier. This is followed by two more stages: mid-section SAW and low-noise gain.
There is no smaller high-performance, dual-feed antenna on the market. Its IP67 compact plastic housing contains a magnetic mount. Various cable lengths and connector options are available.
Applications include security, cost-sensitive mission-critical positioning, military and covert surveillance.
- 40 percent wider bandwidth, small size
- Dual-feed patch element
- Enhanced multipath rejection
- Excellent signal to noise ratio
- RoHS and IP67 compliant
- Suitable for harsh environments
- Outstanding out-of-band signal rejection
|Axial ratio:||6 dB max (GPS and GLONASS)|
|Noise figure:||1 dB|
|Gain:||28 dB typical|
|Voltage input range:||2.5 to 16 VDC|
|Protection:||Shock and vibration|
|Size:||38 mm diagonal by 14.3 mm H|
|Operating temperature:||-40 degrees Celsius to +85 degrees Celsius|
The TW4421 antenna from Tallysman is available through TransiTiva. Please do not hesitate to send us your inquiry using the Request Pricing form if you would like more information about this antenna.