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Comba Public Safety UHF BDA Class A (DC) 2 Window Passband Duplexed Dual Sub-Band

Comba Public Safety UHF BDA Class A (DC) Duplexed Dual Sub-Band

Comba Public Safety UHF BDA Class A (DC) 2 Window Passband Duplexed Dual Sub-Band

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    Free Lifetime Support. SKU / Model: RXUHF-A36DC-2WB

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    Product Description

    Comba CriticalPoint RXUHF-A36DC-2WB Public Safety Class A duplexed UHF dual sub-band DC powered BDA. It is provided with different passbands from 2.0/2.5MHz passband ranging from 450 to 470 MHz including 1.0/1.5 MHz passband beginning from 470MHz to 512 MHz, 2.0/2.5 MHz+2.0/2.5MHz within the 450MHz to 470MHz with window to window Guard 2.5MHz band and greater and 1.0/1.5MHz+1.0/1.5MHz within the 470MHz to 512MHz. It is critical to indicate the specific passbands during the purchasing process.

    UHF Class A public safety BDA also supports both conventional analog and digital P25 P1/P2 communications concurrently. Also supported include ALC (Auto Level Control) channelizing and internal duplexing and simplex. BDA also supports maximum 32 channels and uplink channelized squelching. Inbuilt compulsory isolation test ensures oscillation doesn’t occur. GUI, web-based allows intelligent configuration while supporting SNMP.


    Comba Critical Point RXUHFA36DC2WB is a Class A, DC powered, dual sub-band, duplexed BDA.

    Can be provided with either a:

    • 2.0/2.5 MHz passband from 450-470 MHz plus a 1.0/1.5 MHz passband from 470-512 MHz.
    • 2.0/2.5 MHz + 2.0/2.5 MHz in 450-470MHz, Window to Window Guard band greater than 2.5 MHz.
    • 1.0/ 1.5 MHz + 1.0/1.5 MHz in 470-512MHz, Window to Window Guard band greater than 1.5 MHz.

    Specify exact passbands when ordering. Comba CriticalPoint UHF Public Safety Bi-Directional Amplifier.

    Compliances: NFPA 1221/IFC (dry contact alarms) and NFPA 1221/IFC (NEMA 4 enclosure).


    • 36 dBm Composite Power Downlink.
    • 30 dBm Composite Power Uplink.
    • 0-30 GAR [Gain Adjustment Range (dB)].
    • Measures 31.5 inches (height) by 15.4 inches (width) by 12.4 inches (length).
    • 32 Channels.
    • -33-60 degree C range.
    • Weighs 77.0 lbs.
    • Type N-Female connectors.


    • Supports P25 P1/P2 digital and conventional analog communications simultaneously.
    • Simplex and internal Duplexing supported.
    • Up to 32 narrow band filters.
    • Channelized Auto Level Control (ALC) supported.
    • Channelized uplink squelch supported.
    • Uplink PA shutdown bring the minimum noise for Base Station.
    • Built-in mandatory isolation test to prevent BDA oscillation.
    • Web based GUI for intelligent configuration, SNMP supported.
    • NFPA 1221 / IFC compliant dry contact alarms.
    • NFPA 1221 / IFC compliant NEMA 4 enclosure.

    Technical Specifications:

    Manufacturer: Comba Telecom, Inc.
    Composite Power Downlink: 36 dBm.
    Composite Power Uplink: 30 dBm.
    Gain Adjustment Range (dB): 0-30.
    Item Height: 31.5 inches.
    Number of Channels: 32.
    Temperature Range: -33-60 degrees centigrade.
    Item Weight: 77.0 lbs.
    Item Width: 15.4 inches.
    Qty/ Uom: 1 each.
    RF Connectors: Type N-Female.
    Item Length: 12.4 inches.



    Per FCC laws and regulations, this INDUSTRIAL GRADE device must not be installed by consumers. It is designed for installation by QUALIFIED INSTALLERS only. You MUST have an express consent in writing from all Carriers in your service area to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation. Please submit public safety DAS installer questionnaire for a quote, if you require professional installation and assistance with DAS design, consent and approval process with our certified public safety DAS installation service.


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    Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles of your home / building. Please check outside signal level in decibels before ordering. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

    If it is too weak, submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

    Please note: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

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