Strange LNB - Whats that?

[Tmbr]

<div class="bbWrapper">Hi guys,<br /> <br /> First of all, im a subscriber of one of the Directv subsidiaries (forgive my poor english). Recently they started to offer HDTV channels and i quickly jumped in. The decoder they offer is the HR22.<br /> <br /> For the HDTV service they changed the LNB, because they were introducing a new technologie capable of using a single cable. I tought it was the Directv SWM but after install i dont think so.<br /> <br /> Here&#039;s a picture of the LNB box. I searched TRIAX website but couldnt find any information, neither searching the web.<br /> <br /> <script class="js-extraPhrases" type="application/json"> { "lightbox_close": "Close", "lightbox_next": "Next", "lightbox_previous": "Previous", "lightbox_error": "The requested content cannot be loaded. Please try again later.", "lightbox_start_slideshow": "Start slideshow", "lightbox_stop_slideshow": "Stop slideshow", "lightbox_full_screen": "Full screen", "lightbox_thumbnails": "Thumbnails", "lightbox_download": "Download", "lightbox_share": "Share", "lightbox_zoom": "Zoom", "lightbox_new_window": "New window", "lightbox_toggle_sidebar": "Toggle sidebar" } </script> <div class="bbImageWrapper js-lbImage" title="triax.jpg" data-src="http://img19.imageshack.us/img19/6043/triax.jpg" data-lb-sidebar-href="" data-lb-caption-extra-html="" data-single-image="1"> <img src="http://img19.imageshack.us/img19/6043/triax.jpg" data-url="http://img19.imageshack.us/img19/6043/triax.jpg" class="bbImage" data-zoom-target="1" style="" alt="triax.jpg" title="" width="" height="" loading="lazy" /> </div><br /> <br /> <br /> The main difference i could find is the lack of a power inserter. It doesnt use any. <br /> <br /> <b>The main problem i&#039;m facing is sound glitches when using digital audio output to my home theater. Sometimes it outputs a weird buggy sound, as if something was short-circuited. Really weird and worrisome. I&#039;m trying to pin point the possible problem source, so any help is welcome.</b><br /> <br /> Because of the cable leght (over 300 feet) they used an amplifier. But they used the same amplifier they use for the old LNB system. I&#039;m no tech guy but that looks like a half-baked solution, because the amplifier have two inputs (H and V) and two outputs (H and V) and there&#039;s only one cable.</div>

 

[Bob Nielsen]

<div class="bbWrapper">I suspect that they are stacking (offsetting one of the polarizations to a different frequency range) so that it can all be carried on a single cable. Is there any device connected at the receiver end of the cable? Possibly the HR22 can do this internally, some other models have that capability.</div>

 

[jdspencer]

<div class="bbWrapper"><blockquote data-attributes="" data-quote="Tmbr" data-source="post: 1848995" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/xen/goto/post?id=1848995" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-1848995">Tmbr said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> .....<br /> <b>The main problem i&#039;m facing is sound glitches when using digital audio output to my home theater. Sometimes it outputs a weird buggy sound, as if something was short-circuited. Really weird and worrisome. I&#039;m trying to pin point the possible problem source, so any help is welcome.</b>... </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>You may be hearing what some are discribing as a brrrriiip sound. See this thread on DBSTalk for a discussion of this.<br /> <a href="http://www.dbstalk.com/showthread.php?t=152754&amp;highlight=brrrrr" target="_blank" class="link link--external link--favicon link--favicon--before" style="background-image:url('https://www.google.com/s2/favicons?domain=www.dbstalk.com');" rel="nofollow ugc noopener">Brrrrriiiiip getting worse? - DBSTalk.Com</a></div>