RF COAX CABLE: Classic. Simple. Better.

In the Digital Age, new is synonymous with better. Bloggers and consumers alike can’t wait for the latest game-changing phone to drop. Interest in cutting-edge electric vehicles with autonomous driving features grows with each year. Innovative smart technology is transforming kitchens, factories, and even cities. Consumers are obsessed with newness, not only for the…

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New QMOD/QIP Update Reduces Latency to 500 Milliseconds and adds RTP Streaming

Contemporary Research announces that the latest QMOD Encoder-Modulator firmware update reduces end-to-end latency averaging 500 ms. End-to-end latency includes both the encoding and decoding delay for typical TVs; and unlike IPTV, there is no latency delivering the streams over RF. Sports venues with QMOD technology will now enjoy the lowest standard latency for…

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Working with Latency in Digital RF Applications

Latency is the delay between the video source and the time it takes to appear on the TV or screen. For live presentations from an on-site video switcher, the delay is usually due to scaling and rescaling the video, as well as processing delays in switching and effects. This can typically range from nearly instant to a few seconds. In digital RF and IPTV, an HD program…

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Daisy-Chain RS-232? Control 232-ATSC series tuners with IP switch

For years, integrators have controlled up to 9 232-ATSC series tuners from one RS-232 using a “daisy-chain” RS-232 cable.  It’s an effective solution, but the cable can be complex to wire – and if one tuner must be removed, the chain is broken. However, the previous 232-ATSC+1 and current 232-ATSC 4 tuners also support IP control. Now that AMX, Crestron and others…

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Display Express 7 users wowed by new “Sports Bar” control panels

Some of our first users of the new DX 7 TV control software at NFL stadiums and major universities gave us rave reviews for our new sports-bar style TV control pages. What exactly is “sports bar’ style? As shown above, a user can select a number of TVs, select a TV channel, then click GO to flip the TVs to the new channel – it’s a great way to manually control many…

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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. Everything in the video chain conforms to broadcast standards, so system integration and video processing works seamlessly by design. However, in the AV Integration world,…

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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.  The IP address of the USB port on the QMOD is 192.168.227.227. You will need to assign a special address to connect with the QMOD internal network: Connect a USB cable from the QMOD to your Windows PC.  The unit…

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Fix Windows 8 or 10 to download S37 file to 232-ATSC 4 and 232-ATSC+1 Tuners

“File Too Large” or “No Destination” Message If you use Windows 10 or 8 to copy the S37 file to the 232-ATSC 4, ATSC-SDI 4, 232-ATSC+1 and ATSC+SDI tuners, you may get what appears to be a false error message, such as File Tool Large or No Destination. The reason for this is Windows 10/8 attempts to load a different file first, an app that aids indexing USB memory for…

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Testing 232-ATSC 4/232-ATSC+1 UDP Control

In addition to IP Telnet control, the 232-ATSC 4, 232-ATSC+1, ATSC_SDI and ATSC-SDI 4 HDTV tuners offer bi-directional UDP control. Two-way UDP operation was added to both tuners with S37 firmware 2.08 (but should be updated to V 2.16 or higher). If your firmware is older, go our online Support page and download the 232- ATSC 4 or ATSC-SDI 4 Firmware Support Pack or…

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