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Technical Tips

Quick technical tips for ideas and suggestions to improve your system performance.

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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.


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Dougs Digest Banner 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.

Dougs Digest Banner 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

Dougs Digest Banner 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.

Dougs Digest Banner 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.

Dougs Digest Banner January 8th, 2015

Doug's Q-Tips - IPTV Streaming

It may surprise you that a digital QAM channel has always been an MPEG-2 video stream. The only difference from Video over Ethernet is that the stream is carried by over RF instead of category cable.

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