Signal Combiners

MMDS-* Series
Signal Combiners

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MMDS-COM33
VHF • UHF • MMDS Combiner

The Qintar® model MMDS-COM33 is an outdoor unit that allows MMDS and local off-air signals to be combined on one cable entering the home while preventing MMDS aeronautical band signals from radiating backwards through the off-air antenna. Special filtering on the MMDS input eliminates spurious downconverter products from interferring with the off-air channels. The MMDS-COM33 provides highpass filtering for wireless MMDS superband input channels and band reject filtering of midband channels C to I and highband channels 7-13. The VHF and UHF antenna input is filtered to prevent MMDS signals from radiating from the VHF/UHF antenna. A high isolation combiner is used to provide a single output.

Features:

  • Outdoor case
  • Low cost
  • Filters MMDS spurious signals
  • Prevents MMDS leakage to the U/V antenna
  • Power passive to MMDS block converter
  • DC blocked to the antenna

Applications

  • High isolation combining of a broadband VHF/UHF antenna and a wireless MMDS blockconverter
  • Separation of VHF/UHF signals & wireless MMDS signal

Specifications:

Bandwidth: VHF/UHF 54-216 MHz 470-870 MHz
Insertion Loss:   5.5 dB 7.0 dB
 
 
Bandwidth: MMDS 116-128 MHz 222-408 MHz
Insertion Loss:   5.5 dB 5.5 dB
 
 
MMDS to VHF/UHF Port Isolation: -50 dB avg.  
Spurious Rejection: Ch 2-6: Ch 7-9:
  45 dB min. 35 dB min.

Model MMDS-33A
Amplified VHF • UHF • MMDS Combiner

The Qintar® model MMDS-33A is an outdoor diplexing unit with antenna booster that allows the wireless signals and local off-air signals to be combined on one cable entering the home while preventing the MMDS aeronautical band signals from radiating backwards through the off-air antenna. A 14dB UHF/VHF pre-amp provides off-air antenna gain. The MMDS-33A provides highpass filtering for the wireless MMDS superband input channels and band reject filtering of midband channels C to I and highband channels 7-13. The VHF and UHF antenna input is filtered to prevent the MMDS signals from radiating from the VHF/UHF antenna. A high isolation combiner is used to provide a single output.

Specifications:

 

Passbands gain/loss:
VHF: 54-216 MHz +8dB gain
MDS: 116-228 MHz -5 dB
MMDS: 223-408 MHz -5 dB
UHF: 470-870 MHz +5 dB gain
MMDS to VHF/UHF Port Isolation: -55 dB avg.
DC Power passing rating: 500mA
Power Requirements: 15VDC ±3V

 

Home Page: www.Qintar.com

Qintar Technologies, Inc. • Westlake Village, CA USA
Ph: (818) 991-7300

E-Mail: Sales@Qintar.com

For Business Customers Only. We do not sell directly to the Public.

 


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