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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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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Why is my ATSC Tuner not picking up the names and virtual channel numbers?

When an HD tuner scans the channels, it looks at each channel it finds, extracting the data file that provides the channel name an its virtual channel ID, and other information. A digital channel carries an MPEG2 stream that may contain 2 or more programs. The data tells the tuner how to find the video and audio associated with a given channel ID for each program. As a…

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HDTV Tuners at work in the City of LA

System Integrators, Burst Communications and Mocklin Audio Visual, have been working together for years to design and install AV systems throughout multiple facilities within the City of Los Angeles. Sales Engineer Greg Gorian and Design Engineer Brian Mocklin utilize multiple Contemporary Research ATSC+SDI 4 HDTV Tuners to tune HD off-air channels from local television…

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What is MPEG-4 for?

Our new 232-ATSC 4, our 4th generation HDTV Tuner, can now tune MPEG-4 channels as well standard MPEG-2 channels. Interesting, but what does that really mean? The programs carried by off-air and cable TV channels are based on MPEG-2 format video streams. All U.S. TV and HD tuners have compatible MPEG-2 decoders that can display the programs. Several years ago,…

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New 232-ATSC+1 Firmware 5.02 and 1.17

The new firmware requires a bit of explanation. It’s a production release required by a new processor in the tuner; there is no reason to use the update for existing 232-ATSC+1 tuners that have version 4.15 HD Load and version 1.14 S37 firmware – no new features are added. To check your firmware versions, press the red Setup button, press the Up or Down key to see the…

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Streaming broadcast TV via Internet? You need captions, and the ATSC+SDI HDTV Tuner is the answer.

As of September 30th, 2012 services that provide IP delivery off-air TV programming must provide closed-captioning with the Internet stream. New FCC regulations require that most pre-recorded video programming must be captioned for streaming if it has been shown on TV with captions on or before September 30, 2012. More information can be found at “FCC’s New Closed…

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Why do some Monitor VGA inputs not work with HDTV Tuners?

You would think a modern 16:9 TV, monitor or projector will accept an HDTV feed from our 232-ATSC series tuners, right? Or any HDTV tuner, for that matter. The correct answer is – not always. While HDTV resolutions are part of the family of VGA, sometimes the manufacturer assumes that the set will only be fed conventional VGA resolutions such as 1280 x 768, 1280 x…

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