Dow-Key now offers 75 OHM systems

Dow-Key’s Matrix Product Line Now Offers 75 OHM Systems

Photo: 75-ohm matrices 

VENTURA, Calif. (August 24, 2009) – Dow-Key Microwave is pleased to offer 75-ohm switching systems as a great addition to their 50-ohm matrix product line. These systems are ideal to be used in the broadcasting industry for receiving and transmitting 75-ohm signals, but are equally valued to be used with any other 75-ohm application.

Currently, non-blocking full fan-out (any input connected to any output simultaneously) solid state switching systems are available with operating frequencies in IF-band (20-200 MHz) and in L-band (950-2150 MHz). Generally each system is equipped with low noise amplifiers (with high dynamic range,) local control using LCD and pushbutton keypad, and LAN (Ethernet) interface for remote control. Options such as redundant power supply and other remote interfaces such as IEEE-488 (GPIB), RS-232, RS-485, and RS-422, are also offered upon request.

The standard inputs/outputs configurations of Dow-Key’s 75-ohm matrices start at 8×8 and goes all the way up 128×128. Other configurations may be available upon contacting Dow-Key.  Furthermore, all unused input paths are internally terminated for the units operating in the IF-band and the chassis size of these systems range from 2U/3U for the 8×8 up to 18U for the 64×64, and beyond 18U for larger systems.

For more information on other systems contact Dow-Key directly at or (800) 266-3695, or download below data sheet.

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Dow-Key Microwave Corporation, the world's largest manufacturer of electromechanical RF Switches and Switching Systems, is part of the Microwave Products Group (MPG), which is a subsidiary of Dover Corporation. We specialize in Coaxial Switches, Waveguide Switches, Space Qualified Switches, Electromechanical Switch Matrices, Solid State Switch Matrices, Fiber Optic Switch Matrices, Programmable Delay Lines and much more. Specializing in RF Matrix, Switch Matrix, and RF Switches.

As a leader in RF technology, Dow-Key offers high performance waveguide switches operating up to 70 GHz, coaxial switches operating up to 40 GHz, Hi-Rel switches such as SPDT, transfer switch, T-Switch, various waveguide switches and switching blocks, and switching systems such as SATCOM modules, RF matrices with individual switches, non-blocking crossbar, fan-in and fan-out modules, hybrid switching solution and much more (electromechanical, solid state and fiber optics), in addition to, custom switching designs and reliable solutions, as it is required in today's fast paced communication industry. Our products are used in a wide range of different markets, from commercial, military and to space, with applications in ATE, avionics, ground based, satellite communications, broadcasting, Hi-Rel, and many more. We are specialized in RF technology and custom switching needs. Dow-Key Microwave is AS9100 / ISO-9001:2008 certified and is committed to provide unparalleled customer service, competitive pricing and on-time delivery. Founded in 1945, Dow-Key is the oldest continuously operational RF Relay manufacturer in the United States.

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