Multichannel Multipoint Distribution Service (MMDS), formerly known as Broadband Radio Service (BRS) and also known as Wireless Cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception. Microwave Filter Company provides Combiners, Filter, Waveguide Adapters and various Accessories for the MMDS applications.

BRS-EBS (MMDS) Channel Combiners

The 11750 series of channel combiners can be used for digital or analog transmit applications and offers the following features :

• 64/256 QAM or NTSC/PAL Compatibility
• Copper Construction provides :
• Extremely Low Loss
• Optimum Delay performance
• Excellent Temperature Stability
• Non-Adjacent or Adjacent* Channel Combining
• Available in Single or Multiple Channel Configurations
• Manual or Automatic Shutters Option
{ for agile transmit capability at the broadband input }• Custom configurations available upon request

* Requires additional components.

BRS-EBS (MMDS) Filters

Model	Application	Notes
3977	Single Channel Transmit	Single channel BRS-EBS channel filters remove spurious signals from the output of single channel transmitters.
10457	Full Band Preselector	This bandpass filter provides attenuation on both sides of the band and is also useful for cleaning up low power relay signals.

BRS-EBS (MMDS) Waveguide Adapters

Model	Application	Notes
11756	End Launch	Microwave Filter offers a complete line of copper waveguide to coax adapters. They can be ordered in virtually any connector orientation with your choice of connector types. These adapters allow for easy mounting and cable access. Where space availability is limited, choose the adapter orientation that matches this limitation. All 11756, 11757 and 11758 Models adapt the specified waveguide to coaxial connections with 1.15:1 VSWR and 0.2 dB maximum loss.
11757	Narrow Wall
11758	Broad Wall

BRS-EBS (MMDS) Accessories

Model	Application	Notes
6915	Hybrid	Splits input power with a 90 degree phase shift between the two equal outputs for power combining and special antenna configurations. Ideal for use when combining adjacent digital channels to one antenna.
11047	Hybrid
10814E	E & H-Bends	WR340, Aluminum, 90O E-Plane also available in H-Plane
11814E	E & H-Bends	WR340, Copper, 90O E-Plane also available in H-Plane
10388E	U-Bends	WR340,Aluminum, E-Plane also available in H-Plane
11388E	U-Bends	WR340,Copper, E-Plane also available in H-Plane
4662	Termination	Low VSWR Terminations
11600	Termination	Used to block off the one side of the broadband waveguide. Complete with hardware. Model 10600 is made of aluminum and 11600 is made of copper
10601	Spacer	This spacer mates to UG-1712/U WR340 flange and provides a non-galvanic transition from copper/brass flanges to aluminum flanges.
10602-1	Mounting Bracket Kit	A pair of mounting plates for “upright” combiner mounting.
10602-2	Mounting Bracket Kit	Optional mounting kit for low ceiling clearance and easy access.