Specifications

8-VSB Agile Modulator Issue 1.02 December 9, 2008 Page 10 of 29
www.technalogix.ca
3.0 OVERVIEW
General Description
The TM600-8VSB is a cost effective 8-VSB professional modulator especially designed
for digital TV broadcasting applications. The TM600-8VSB accepts an MPEG-2
Transport Stream, processes it, and modulates it onto a VHF or UHF channel
(selectable between VHF or UHF at time of order).
In order to provide the highest performance in the smallest package, TM600-8VSB
integrates up-to-date FPGA technology and sophisticated digital signal processing
algorithms, especially for the modulation and the output filtering processes.
The clock system has been carefully designed to achieve very low phase noise in
addition to offering the flexibility required to operate with different synchronization
schemes. The synchronization can occur off an external 10MHz reference, internal
10MHz reference, or the transport stream itself.
The TM600-8VSB fulfils ATSC referenced standards and generates a fully modulated
signal that includes all the clock & synchronization features necessary for high quality
ATSC synchronization.
The TM600-8VSB modulator includes linear and non-linear pre-corrections.
Standard Features
• SMPTE-310M input management
• ASI-320 input management
• ATSC Framing
• ATSC Channel encoding
• Pseudo digital linear pre-correction
• Non linear pre-correction
• 8-VSB modulation
• 6 MHz channel
• 0 dBm RF Output (other levels optional)
• Output Level Control
• RS-232 front panel interface
• All aluminum enclosure
• Simple design using commonly available parts ensures reliable operation