TAG: GNSS antenna

Innovation: Mitigating interference with a dual-polarized antenna array in a real environment

FIGURE 2. CW interference scenario.

Double Take
A diversely polarized antenna array combines signal processing in the spatial and polarization domains for significant improvement in receiver robustness against interference. The C/N0 of line-of-sight components is improved since the receiver can use the power present in the left-hand circularly polarized channels, and also interference mitigation improves. read more

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Tracking RFI: Interference localization using a CRPA

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A controlled radiation-pattern antenna can preserve GNSS positioning while providing at least an azimuth angle towards an interference source. If integrated with an attitude and heading reference system, only a few lines of position pointing towards the RFI source could provide a fast indication of the probable ground location. read more

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Tallysman offers magnetic-mount GNSS antennas

January 31, 2017By
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Tallysman, a manufacturer of high-performance GNSS antennas and related products, has introduced a magnetic-mount triple-band (plus L-band) GNSS antenna, TW7972, and a dual-band antenna, TW7872. They are designed for precision agriculture, autonomous vehicles, navigation, real-time kinematic (RTK), precise point positioning (PPP), and other applications where precision matters. The ability of the TW7972 to access L-Band correction services extends its utility to a... read more

Case study: Firms collaborate on product development

January 12, 2017By
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Professional GNSS users now expect lightweight, easy-to-use receivers optimized for their particular workflows. Meanwhile, a streamlined manufacturing process means design and production of sophisticated instruments now takes months rather than years, and relies on global teams of networked specialists. Carlson Software approached Hemisphere GNSS in early 2015 with the goal of bringing a new GNSS receiver to market, one optimized... read more

Harxon offers new waterproof helical GNSS antenna

November 11, 2016By
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Harxon has released its next-generation triple-frequency Helix Antenna HX-CH7603A, which has excellent performance and high efficiency in a compact form factor, the company said. Harxon’s new-design helical antenna HX-CH7603A is capable of  GPS L1/L2, GLONASS L1/L2 and BDS B1/B2/B3. Though compact, it provides high peak gain (more than 3.5 dBi) and wide beam width to ensure the signal receiving performance of... read more

This article is tagged with , , and posted in Latest News, OEM, Product Showcase

Mayflower selected for submarine antenna anti-jam upgrade

October 31, 2016By
The SAGE (NavGuard 501) GPS anti-jam unit.

An antenna upgrade for U.S. Navy submarines is being provided to improve GPS anti-jamming capabilities. Mayflower Communications Company, subcontractor to Lockheed Martin Sippican, is applying its Submarine Anti-Jam GPS Enhancement (SAGE) capability to the U.S. Navy Multifunction Mast Antenna System (OE-538B) upgrade to improve submarine communications and meet Navigation Warfare (NAVWAR) requirements. The Mayflower SAGE — a variant of Small Antenna System (SAS)... read more

This article is tagged with , , , , , , and posted in Defense, Latest News

US Naval Observatory chooses NovAtel GPS anti-jam technology

October 10, 2016By
The U.S. Naval Observatory is located in Washington, D.C.

The United States Naval Observatory (USNO) has selected NovAtel’s GPS Anti-Jam Technology (GAJT) to satisfy a requirement for a controlled reception pattern antenna capability at sites throughout the Department of Defense Information Network (DoDIN). The DoDIN is the core global enterprise network of the United States military and is depended upon for secure and sensitive voice, data, video and bandwidth services.... read more

This article is tagged with , , , , and posted in Defense, Featured Stories, GNSS, Latest News

Antenova’s Beltii miniature antenna designed for small PCBs in GNSS devices

October 7, 2016By

Antenova Ltd., manufacturer of antennas and RF antenna modules for machine-to-machine (M2M) and the Internet of Things, is now offering Beltii (P/N SR4G013), an embedded antenna that measures 15.6 x 3.3 x 4.4 millimeters and operates with all satellite navigation constellations. The antenna has been designed to work over a very small ground plane on a small printed circuit board (PCB), where... read more

This article is tagged with , and posted in GNSS, Latest News