Waveguide UHF Switchless Combiners

Electronics Research manufactures UHF switchless Magic Tee combiner systems for combining two, three and four cabinet UHF transmitters. The systems are configured in sets of sub components for a wide range of power levels and different input and output configurations.

The switchless combiner systems are built around a pair WR1500 or and WR1800 waveguide two position phase shifters (0 degrees and 90 degrees) and a 180 degree Magic Tee Hybrid. System that require a three-cabinet combiner system include an additional 3-position phase shifter. The phase shifters can be configured for 230 or 115 VAC, 50 or 60 Hz and are available for either 12 VDC or 24 VDC control voltage.

To configure a complete system requires adding:
Input Hybrid and Transition Set(s)
Reject Load Output Transition Set(s)
Output Transition Set

Optionally available components include:
Liquid cooled coaxial or waveguide reject and system test loads
Switching of the system output to a test load
Switching between main and auxiliary antennas at system output

WR1500 and WR1800 Switchles Combiner Brochure