Skip to navigation Search for: Home About Catalog Resources News Contact Home / Transmission Line / Circular Waveguide Circular Waveguide GUIDELine™ circular waveguide is the best choice for long vertical runs. It has substantially lower wind loads than equivalent rectangular waveguide, allowing it to be used on towers where rectangular system cannot be used. With attenuation up to 50% lower than corresponding rectangular waveguide, it is the most efficient transmission line available. You may be able to use a smaller, less-expensive transmitter! Unlike truncated elliptical waveguide, on-site tuning is completely eliminated by the use of cross-polarization canceling pins. Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 4 results GUIDELine™ GLW1350 Series Circular Waveguide GUIDELine™ GLW1500 Series Circular Waveguide GUIDELine™ GLW1700 Series Circular Waveguide GUIDELine™ GLW1750 Series Circular Waveguide Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 4 results Categories Announcements Featured Projects Press Releases Upcoming Events Recent Posts 6-1/8-inch Four-Port Motorized Coaxial Switch A 10-Bay ROTOTILLER® Heading to Shipping First module assembled for a new five station FM channel combiner New Integrated UHF Channel Combiner KTYD’s SHP-4AE FM Antenna on Gibraltar peak Electronics Research, Inc. Electronics Research, Inc. 7777 Gardner Road Chandler, IN 47610-9219, USA +1 (812) 925-6000 +1 (877) 374-5463 (toll-free) +1 (812) 925-4030 (fax) About ERI Our dedicated staff of engineers, designers, fabricators, project managers, and installers deliver products to meet all of your broadcast needs, both RF and structural. We take pride in contributing to your success by offering the best broadcast antennas, filters and combiners, transmission line, towers, and broadcast services. Links Site Map Disclaimer ERI Authorized Resellers © Electronics Research, Inc. 2021