Ground stations that work across the L1 to L5 bands often compare helical and quadrifilar designs before choosing an antenna. A Quadrifilar Helix Antenna gives wide coverage and a helical design suits narrower, more directed reception. Antenna Experts offers GPS anti-jam antennas for Indian buyers matching antenna type to station layout. Key Features: • L1 to L5 band coverage • Wide and directed coverage options • Suited to ground stations Contact Details: Sector-16, HSIIDC, Bahadurgarh 124507, Delhi NCR, India Email Id: gurleennayar@gmail.com Ph.no: +91 9810205738, +91 9910035738, +91 9958006636