Product Manual QCA9-33 Active Combiner April 13, 2012
Table of Contents Table of Contents ................................................................................................................................ 2 Overview ............................................................................................................................................. 3 Specifications ...................................................................................................................................... 4 Installation ...........................
Overview The Contemporary Research QCA9-33 is an active RF combiner that features eight high-level inputs and one low-level input, combining with high isolation, and amplifying up to a 33 dBmV output level. Designed for QMOD HDTV applications, the eight RF inputs typically receive 29 dBmV RF from QMOD HDTV modulators. The ninth input is for up to 19 dBmV RF signals, such as incoming cable feed, a control channel from an ICE- HE Head End control modulator, or another QMOD or QCA9-33.
Specifications Physical 8.5” [216mm] wide x 1.75” [38mm] height (1RU) x 6.0” [153mm] deep 1.5 lbs [0.
Installation Basic Setup The QCA9-33 is designed for QMOD applications, but can be used with other RF channels at similar levels Connect High-Level Sources to Inputs 1-8 Feed the RF outputs from up to 8 QMOD HDTV Modulators, normally set to output 29 dBmV. Connect to the low-level RF Input 9 The ninth low-level (15-19 dBmV) port adds several options. The QCA9-33 will amplify the input by 15.5 dB: Add an unplanned modulator – just set the QMOD to 17 dB. Make room for an ICE-HE Control Modulator.
Rack Mounting Three options are available for rack-mounting QCA9-33 Active Combiners and QMOD modulators. RK2 Dual Rack Kit with Tie Bar Mounting New QMOD and QCA enclosures have a slot in the bottom middle of the case. This will accept a tie bar that will lock the two enclosures together without taking the cases apart 1. Check that your enclosures have the tie bar slot. 2. Slide the included tie bar into the side of one unit and attach with the included screws. 3.
Safety Instructions Read before operating equipment. 1. Cleaning - Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 2. Power Sources - Use supplied or equivalent UL/CSA approved low voltage DC plug-in transformer. 3.
Limited Warranty and Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material and workmanship under normal use for a period of two years from the date of purchase from CR. Should such a defect occur CR will repair or replace, at their option, the defective product at no cost for parts or labor. This warranty extends to product purchased directly from CR or an Authorized CR Dealer.
