Products

Central Receive x6 6-Way MaxRC COFDM Receiver

The IMT Central Receiver X6 (CRX6) is a ruggedized COFDM (DVB-T compliant) six-way diversity central receiver. It offers exceptional RF performance and IP66 environmental durability for external use. The CRX6 is the new generation of receive systems. Typical diversity receive sites would have the antennas and LNA’s or BDCs mounted at the top of the tower with coaxial cables running the length of the tower to a receiver and decoder. This design made the entire system susceptible to lightning and other EMI disturbances. By integrating the receiver with the antennas IMT has reduced the coaxial runs from six to one Ethernet cable, while decreasing the susceptibility to lightning and overall system costs.

The Central Receiver (CRX6) accepts 6 RF inputs from external antennas and features a compact, lightweight rugged IP rated chassis enabling it to be mounted on vehicles, towers or building tops in any weather conditions. The CRX6 sends the MPEG Transport Stream over IP either by an Ethernet cable or over ruggedized fiber to a computer-based software or hardware decoder and is powered via a single cable. The CRX6 also features optional 2 or 4 channel, 6 way diversity reception. All of these features provide unequaled value in a high quality COFDM receiver.

The IMT CRX6 system was designed to automatically optimize the receive signal at all times, and virtually eliminate all human intervention. In contrast to the old single, highly directional antenna, the CRX6 employs multiple antenna elements that are arranged to cover 360°of azimuth in overlapping sectors. The key to IMT’s success is improving operation efficiency in signal acquisition. IMT focuses its approach on the integration and optimization of the antenna design, use of adaptive digital signal processing (ADSP) and maximal ratio combining (MRC) techniques. In the past, these three areas have been treated and controlled independently. By combining and optimizing these areas, IMT is able to provide a new class of fully autonomous Central Receiving Systems that provide significant value and efficiency to the industry.

A webpage controller is used to set-up and monitor the CRX6. The webpage controller features channel control, antenna receiver statistics, individual sector graphs and the ability to shut down specific directional antennas. For advanced functions such as changing frequency plans, AES decryption keys, or unit naming, an easy to use WEB based administration software package is supplied.