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New Integrated UHF Channel Combiner

The product shown is a new Model UF3000-323-TCC UHF Tee Combiner built to combine RF Channel 14 and 36 into a broadband UHF panel antenna. It is a channel combiner only with two (2) three-section UHF bandpass filters in a single integrated case. The combiner is rated to handle up to 3 kW average power at each input, 6 kW at the combiner output. Insertion loss is only 0.1 dB. The combiner includes single port directional couplers at each of its 1-5/8-inch EIA flanged inputs and a single port adjustable directional coupler at the 3-1/8-inch EIA flanged combined output.

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A top-mounted elliptically polarized TRASAR® television antenna

The antenna pictured in East Tennessee PBS’s Sneedville, Tennessee, main facility WETP. The signal serves communities in northeast Tennessee, southeast Kentucky, and western North Carolina, and Virginia. This is an elliptically polarized antenna, and so the climbing facilities are a fiberglass ladder to minimize distortion of the vertically polarized azimuth pattern. The antenna is installed on a 540-foot guyed tower ERI manufactured and installed in 2005.

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Welding Leg Flanges to a New LAMBDA® Optimized FM Mounting System

Welding flanges onto the legs of a new ERI LAMBDA® Optimized FM Mounting System. The LAMBDA® mounting system was designed initially to reduce FM antenna failures due to stresses from tower movement.  The design specified a maximum bending radius of the top-mounted free-standing tower sections, and this resulted in a very stiff tower designed to support side-mounted FM antennas. Typical 20-foot tower sections do not allow symmetrical antenna element mounting locations because the cross members will have a different geometry behind each of the array elements. LAMBDA tower sections make the signal scattering from the tower a constant because the structural member spacing is a halfwave at the operating FM frequency.  All the antenna array elements see the same tower face geometry because the tower’s reflected (scattered) signal is identical for each bay of the array.

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Another 16-Bay AXIOM® Master FM Antenna in Final Testing

Another 16-Bay AXIOM® Master FM Antenna is nearly complete and ready for shipment to site. The AXIOM is a very cost-effective multi-station FM antenna available in 4, 8, 12, and 16 bay models with power handling capability in a dual input configuration of up to 240 kW. The AXIOM is optionally available with radomes or electrical deicer for harsh locations with significant snow and ice accumulation.