6
AQM Series
Instruction Manual
Section 2 — Product Summary
2.1 Revision history & Reason
This is the fourth issue of the Instruction Manual.
The reason for this revision was to include the sub-band feature and to reformat the document.
2.2 Product Application & Description
Application:
The AQM accepts a DVB ASI (Asynchronous Serial Interface) digital transport stream and modulates it into a QAM
(Quadrature Amplitude Modulation) signal. The QAM modulator supports QAM modes 256, 512 & 1024. Additionally, if
needed, the built-in bit stuffing circuitry ensures that Null Packets are inserted into the ASI transport stream to ensure
the correct baud rate is transmitted.
• Compact design allows 6 modules in a 2 ru rack chassis
• DVb ASi input complies with DVb ASi standards
• improve bandwidth efficiency with support for all advanced QAM Modes including, 256, 512 & 1024 QAM
• Agile QAM output 5.75—864 Mhz, (NTSC Mode: Channel 2—135, T7-T14; Frequency Mode: 12.5 khz increments)
• NTSC & PAL b/g capable
• Self-test PrbS mode
• optional iF output available (special order)
• optional LVDS input available (special order)
