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

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

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

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    Free Lifetime Support. SKU / Model: RXUHF-A36AC-2WB

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    Product Description

    Comba Public Safety CriticalPoint duplexed, dual sub-band Class A BDA (RXUHFA36AC2WB) is AC powered and provided with either of the following:

    • 2.0/2.5 MHz passband of between 450MHz and 470MHz including 1.0/1.5MHz passband of between 470MHz and 512MHz.
    • 2.0/2.5MHz+2.0/2.5MHz within 450MHz and 470MHz window-window guard band more than 2.5MHz.
    • 1.0/1.5MHz+1.0/1.5MHz within 470MHz and 512MHz window-window guard more than 1.5MHz.

    When ordering, it is critical to specify the passbands that you need. Comba Critical Public Safety duplexed UHF BDA also features typical analog and digital P25 P1/P2 communications simultaneous support. SNMP intelligent GUI web-based is supported too, including internal duplexing and simplex. Bi-directional amplifier oscillation is prevented by a compulsory isolation test, while a PA uplink shutdown helps lower noise to basic minimum. Narrow band filters up to 32 are supported, as are uplink squelch channelization and ALC (Auto Level Control) channelization.


    Comba Telecom's Critical Point RXUHF-A36AC-2WB is a Class A, AC powered, dual sub-band, duplexed BDA.

    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)].
    • 32 Channels.
    • -33-60 degrees centigrade range.
    • Weighs 77.0 lbs.
    • Type N-Female connectors.
    • Measures 31.5 inches Height by 15.4 inches Width by 12.4 inches Length.


    • 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.
    Bands Supported: UHF.
    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 to +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 BDA installation service questionnaire for a quote if you require professional installation and assistance with BDA design, consent and approval process by certified public safety BDA installers.


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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. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. 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.

    Kevin K. of Anderson, California gave the following review:

    Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.

    Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.

    If outside signal is too weak (weaker than -110 dB), 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.

    For non installation-included kits: 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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