Multiplexers

DCI makes a wide variety of transmit combiners linking as many as 8 bands to one antenna. These units are used where multiple transmit and receive bands exist and there are multiple receivers and/or transmitters in each band. They allow the use of multiple transmitters and receivers on one antenna while providing considerable protection from other interfering signals.

• Multiple window filters are made up of three or more band pass filters linked together with a cable harness that is specifically phase-matched.
• Excellent isolation and low SWR can be achieved on each band.
• Power handling up to 1 kW.
• DCI multiple-window filters can provide as high as 100 dB of isolation between TX and RX bands.
• A sample multi-window filter could be as follows: (TX 460 to 465 MHz) (RX 470 to 475 MHz) and (TX 480 to 485 MHz) (RX 490 to 495 MHz).

Multiplexer Examples

Description	Graphs	Configuration	Channel Isolation*	Poles	Dimensions (WxDxH)
Cellular Triplexer		Connector: N Mounting: Rack Harness: Hard Harness	> 90 dB	10, 10, 10 w/4 notches	19" x 7" x 21"
ATV 4 Window Multiplexer		Connector: N Mounting: Rack Harness: RG-214	> 76 dB	10 per channel	19" x 9" x 24"
UHF TV 9 Channel Multiplexer		Connector: N Mounting: Rack Harness: RG-142	> 80 dB	10 per channel	19" x 8" x 56"
FM Triplexer		Connector: N Mounting: None Harness: RG-214	> 32 dB	4 per channel	12" x 10" x 9"
FM Triplexer		Connector: N Mounting: Rack Harness: RG-142	> 40 dB	4 per channel	19" x 7" x 21"
FM Triplexer		Connector: N Mounting: Rack Harness: RG-214	> 52 dB	4 per channel	19" x 10" x 9"