Technical Tips
Quick technical tips for ideas and suggestions to improve your system performance.
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QMOD
The importance of scaling in a “not exactly perfect” video world
In a perfect video world, scaling is not required. For example, broadcast-quality video has exactly the right resolution, correct number of lines, and a refresh rate of precisely 59.94 or 29.97 Hz.
All Blogs
July 10th, 2016
Doug's Q-Tips - Viewing QMOD/QIP Web Pages from the USB port
When you don’t have an Ethernet connection - which is often the case in a new installation - you can view the QMOD Web pages through the front USB port.
November 7th, 2015
Doug's Q-Tips - What sources will work with QMOD's HDMI input?
HD Modulators often cannot distribute video from HDCP-protected sources using open-access QAM encoding. However, there are many HDMI sources that can be sent over RF and IP
October 19th, 2015
Doug's Q-Tips - Can't Update with QMOD Update? Here's What to Check
From time to time, our CR Support staff hears that our QMOD Update app will not update their QMOD or QIP encoder over USB and/or Ethernet.
May 31st, 2015
Doug’s Q-Tips – What’s the deal with Channels 2.1 and 2.2?
QAM cable channels have always had the ability to carry more than one program in each channel. When affordable QAM modulators for commercial applications were invented, such as our QMOD series, they could only deliver one program.
January 8th, 2015
Doug's Q-Tips - IPTV Streaming
It may surprise you that a digital QAM channel has always carried an MPEG-2/MPEG4 video stream. The only difference from Video over Ethernet is that the stream is carried over RF coax instead of category cable.