The Hukk Engineering Model CR1200 QAM Monitor allows monitoring
and testing of quadrature amplitude modulation (QAM) signal
transmissions. QAM signaling is used on broadband systems to deliver
compressed digital video signals and is also used in MCNS compatible
cable modems. The CR1200 demodulates the carrier and performs error
detection on the live program data stream.
In addition, the CR1200 performs analog tests on NTSC, HRC and IRC
signals, providing video and audio measurements of these signals.
The CR1200 is portable and easy to use for both interactive and
unattended measurements. The CR1200 reveals crucial performance
information to the earth station/headend technician, field technician, and
installer to identify reception problems and speed troubleshooting. The
system engineer can obtain numerical measurements of service quality
with the CR1200s display of summary information.
