Specifications

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Section 1: Headend Equipment
Satellite Receivers
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1 - 35
QQQT
Quad QPSK/QAM Transcoder
• Quad Array of Four (4) High Performance QPSK to QAM Transcoders
• Four Agile Input Tuners Select Appropriate Digital Transponders
• Four Agile Output Converters Select the Appropriate Output Channel
• Enhanced Output Frequency Range (54-750 MHz)
• DigiCipher
®
II Compatible (Use with HITS, WSNet & Cancom™ Services)
• External IF Loop for Purposes Such as EAS
• Built-in Computer Software Control Capability
• Rack Mount - 1.75” Spacing, Rugged Aluminum Chassis
• Three Year Product Warranty
• C-UL Listed
The Blonder Tongue QQQT (Quad QPSK/QAM Transcoder) is designed to offer cable television operators the
ability to offer a state-of-the-art digital television package to consumers at an extremely cost effective price. The
Triple QT saves precious system bandwidth by transcoding existing 30 MHz QPSK satellite transponder signals to
6 MHz QAM signals in preparation for distribution on a terrestrial cable television system.
Each QQQT unit contains four (4) separate QPSK to QAM transcoder sections that independently process a 30
MHz digital QPSK satellite transponder stream. Each section is fully agile to allow the reception of any DigiCipher®
II based QPSK transponder signal (ITU-T J.83 Annex B). The QPSK signal is then transcoded by the Triple QT to
a 6 MHz QAM IF signal. The resultant 6 MHz wide QAM IF signal is then translated to any CATV RF channel
assignment in the 54-750 MHz frequency range (CATV 2-117). This includes FM Band channels 95-99 (A1-A5).
The four (4) channel combined unit output is +40 dBmV.
The unit processing is transparent to the conditional access method, the compression method and the individual
subscriber programming selections and works in conjunction with QAM set-top decoders located in the
subscribers home. This makes the Triple QT the ideal means of delivery for either a selected portion, or a
complete digital satellite service. It is both a bandwidth efficient and cost effective way to distribute superior quality
digital programming to multiple subscribers.
Ordering Information
• Quad QPSK/QAM Transcoder ................................................ 6289A