Dow-Key’s 50-ohm/75-ohm Solid State Matrices for Broadcasting and Signal Routing Industries

A new switch matrix series with either 50-ohm or 75-ohm impedance is available from small scaled 8×8 full fan-out configuration up to large scaled 128×128 matrix.

Ventura, CA May 12, 2010 — A new switch matrix series with either 50-ohm or 75-ohm impedance is available from small scaled 8×8 full fan-out configuration up to large scaled 128×128 matrix.

Model 3206 thru Model 3211 are solid state matrices offered with either 50-ohm or 75-ohm impedance. The standard 50-ohm solutions are perfect for all applications where signal routing and signal testing are required, while 75-ohm solutions are an excellent design to be used in the broadcasting industry for receiving and transmitting video signals or where 75-ohm impedance is needed.

New Solid State Matrices

These systems are available with non-blocking full fan-out capability; meaning any input can be connected to one or multiple outputs simultaneously. Thus, it is referred to as a full fan-out solution. These systems are currently offered over three different frequency bands: IF-band (20-200 MHz), L-band (950-2250 MHz) and broad band (50-2150 MHz). Other frequency ranges may be supported upon request.

All matrices by standard are equipped with low noise amplifiers (with high dynamic range), local control via a 4×20 LCD screen and a 3×6 pushbutton keypad, and a default remote control thru TCP/IP (Ethernet) interface. Redundant power supply is offered as an option, if this would be a desired requirement. In addition, beyond the standard TCP/IP remote interface, the choices of using GPIB (IEEE-488), RS-232, RS-485, or RS-422 are also available upon request.

The solid state 50-ohm/75-ohm matrix portfolio offers a wide range of input/output configurations; starting at 8×8 and goes all the way up 128×128. Other configurations may be available upon contacting Dow-Key. The chassis size of these systems range from 2U/3U for an 8×8 solution up to 18U for the 64×64, and beyond 18U for larger systems.

Currently seven solid state matrix models are offered with 75-ohm impedance and for 50-ohm systems more solutions are available on our website or matrix catalog (solid state section). Current models are listed here below with a quick overlook of what each solution offers.

Model 3206: 8 by 8 | Full Fan-Out | 20 – 200 MHz (IF-band)
Model 3207: 20 by 24| Full Fan-Out | 20 – 200 MHz (IF-band)
Model 3208: 8 by 8 to 16 by 16 | Full Fan-Out | 950- 2250 MHz (L-band)
Model 3209: 16 by 8 to 16 by 16 | Full Fan-Out | 950- 2250 MHz (L-band)
Model 3210: 16 by 16 to 32 by 32 | Full Fan-Out | 950- 2250 MHz (L-band)
Model 3211: 64 by 64 | Full Fan-Out | 50 – 1250 MHz (broadband)

Download the data sheets

For other configurations than specified, do not hesitate to contact Dow-Key at

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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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