Download Product Specifications

enlarge +

Modular QPSK to QAM Transcoder

• Modular Design Allows One to Four Single Transcoder Modules in a Single Rack Space
• Fully Agile Output Frequency Range of 54-860 MHz
• Back-Lit LCD Display Panel with Front Panel Accessible Push Button Controls Provides Access to All Vital Unit Information and Makes Set-Up and Troubleshooting a Breeze
• Design Modularity Provides the Ability to Field Replace Any Module in the Unlikely Event of a Failure
• Off-Site Remote Operation and Control Including Digital Adjustment of the QAM RF Output Level with High Performance QCentral Computer Software
• 256 QAM and Null Packet Stuffing Capability Upgradeable with Field Installable Optional PC Board Modules
• Forced Air Cooling and Ventilation for Each Individual Section Allows Units to be Stacked Directly to Minimize Rack Space
• Auto Sensing EAS IF Substitution Port
• Optional Redundant/Standby Power Support Capability Built in to Every Unit

PRODUCT DESCRIPTION
The digital cable solution that all small system and MDU cable operators have been waiting for has arrived! Quick Take from AT & T HITS & Canada’s Starchoice or CableMax from WSNet is the program that enables an operator the ability to deliver up to 200 programs of state of the art digital television. The hardware required for this solution is a combination of Motorola QAM decoders in the home and Blonder Tongue Transcoders at the headend.

Blonder Tongue Transcoders save precious system bandwidth by transcoding a 24-36 MHz QPSK satellite transponder signal to a 6 MHz QAM signal for distribution on cable television systems. The Motorola QAM decoder in the home provides both digital and analog viewing with an operator branded viewer menu system (program guide).

The MQQT unit is the latest Blonder Tongue Transcoder that builds upon the QQQT concept, but incorporates a modular design. Plus, the MQQT takes QPSK to QAM transcoder performance to a new level, while maintaining Blonder Tongue’s long-standing tradition of providing the best price/quality combination available. The product is comprised of individual transcoder modules and a single power supply/control module in a single rack height chassis.  The modularity allows for transcoder sections to be added or changed one at a time. Phase noise performance is -95 dBc to meet the DigiCipher®II 256 QAM specification and the MQQT can be upgraded for both 256 QAM processing or null packet stuffing capabilities with a simple field-installable PC board. And finally, the MQQT can be fully controlled remotely via the QCentral Computer Software including digiital adjustment of the QAM RF output level.