SI2 Technologies, Inc. is now ARA - Antenna Research Associates Competitors

Centurion is the leading designer and manufacturer of antennas and power products for wireless communications devices. For over 25 years, industry leading manufacturers and installers of mobile phones, handheld devices, in-building wireless systems, PDAs, professional business radios and automobiles have relied on the quality and reliability of Centurion's products. Centurion offers in-house customer design, tooling, mold fitting and production to provide a complete turnkey solution to fit any customer-specific need. With eight design, manufacturing and sales facilities around the globe, Centurion has one of the largest and most talented R&D and sales support teams in the industry.

Modern requirements in today’s Radio Frequency (RF) market are often challenging and diverse. There’s also an increasing need for communication and electronic warfare applications to be less obtrusive. Technology has had to evolve to offer better coverage and higher capacity over a wider bandwidth. This makes wideband antennas the most crucial element in today’s RF systems - particularly in situations where multiple radio systems co-exist on one platform, where space is limited. COJOT broadband antennas are the ideal choice.Founded in 1986, COJOT has a reputation for delivering field-proven, quality equipment - on time and on budget. Our expertise and experience make us a recognised and trusted source of highly reliable and durable antenna equipment, and our products can be found in some of the world’s most demanding environments. Our key products centre around tactical communication, electronic countermeasure and spectrum monitoring applications, covering omnidirectional and directional antennas for the manpack, handheld, and vehicle segments - including solutions for fixed installations such as on masts or shelters - that are ideally suited for high- and low-power applications from 10 to 400 W. Our range of different types of wide and narrowband antennas includes the latest, state-of-the-art SMART antenna solutions like Steerable Beam and Mission Adaptive antennas. We also offer a wide variety of accessories for the 20 – 8000 MHz frequency range, as well as customisation and EM-Simulation services. Our extensive range is complemented by the comprehensive portfolio of our sister companies, Alaris Antennas and Alaris mWAVE, which have expertise in numerous product types such as Direction Finding (DF), Monitoring, Communication, Log Periodic Dipole Arrays (LPDA), Masts and supporting RF Electronics. When solid coverage in RF systems is crucial, you can trust us to have what you need.

HASCALL-DENKĒ has become known as the World's Antenna Source. From our humble beginnings in 1986 we began building our business one customer at a time. We achieved this by bringing leading edge technology to bear on ever evolving antenna performance and environmental issues, HASCALL-DENKĒ has built a worldwide reputation for unparalleled excellence in design and reliability. We have charted a course that will eventually lead us into every aspect and application of antenna design. Along the way we will always bring the most recent developments in technology, performance and quality.As a Veteran Owned Small Business, we have deliberately staffed our ranks with former military communications operators well experienced in tactical communications operations. Combining this rare experience with the work of the best antenna design engineers available, our customers are guaranteed the very best in utility and dependability. All of our designs are conceived at our facilities located in Manatee County, Florida, USA. Rapid prototyping, pilot production runs, custom manufacturing and complete production operations are performed there as well.Our staff prides itself on a high level of commitment to customer service and delivering quality products. Our engineers enjoy solving customer problems and creating cutting edge antenna designs.