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<blockquote data-quote="spiney" data-source="post: 152592" data-attributes="member: 192438">sorry, al mahdi, but you're not giving sufficient information to allow a useful reply!All tv coax cable is 75 Ohm, but there's 2 sorts. The older type is just for VHF/ UHF tv frequencies, and has solid polythene inner insulation. However, it won't &quot;carry&quot; satellite signals for any appreciable distance!The newer type will also carry the higher freqency sat signals, between dish lnb antenna and satellite receiver. It should always have a &quot;metal foil&quot; outer conductor, and often - but not necessarily - air spaced inner insulation (holes running through it).Just saying &quot;Belden&quot; doesn't show which type you're using. Is there an outer foil? Or, is there a type number printed on it?Also, just describing the Alcad gadget doesn't tell exactly what it is, so can you identify it from the catalogue, at:<a href="http://www.alcad.net/02productos/inicio.php?pulsado=_level0.submenu1.botsubmenu0&amp;idioma=eng" target="_blank">http://www.alcad.net/02productos/inicio.php?pulsado=_level0.submenu1.botsubmenu0&amp;idioma=eng</a> ?(either enter the type number in Alcad's item search, or else look through sections: broadband; tv sat; multiswitches).Using older type tv cable to distribute satellite signals will give the symptoms you described, ie an extra amplifier improves signal quality instead of worsening it! This isn't &quot;ideal&quot;, but if sat reception is now ok, then fair enough! Otherwise, the best thing to do would be to replace the current - presumably old type - tv cable with satellite grade.</blockquote>

[QUOTE="spiney, post: 152592, member: 192438"] sorry, al mahdi, but you're not giving sufficient information to allow a useful reply! All tv coax cable is 75 Ohm, but there's 2 sorts. The older type is just for VHF/ UHF tv frequencies, and has solid polythene inner insulation. However, it won't "carry" satellite signals for any appreciable distance! The newer type will also carry the higher freqency sat signals, between dish lnb antenna and satellite receiver. It should always have a "metal foil" outer conductor, and often - but not necessarily - air spaced inner insulation (holes running through it). Just saying "Belden" doesn't show which type you're using. Is there an outer foil? Or, is there a type number printed on it? Also, just describing the Alcad gadget doesn't tell exactly what it is, so can you identify it from the catalogue, at: [URL="http://www.alcad.net/02productos/inicio.php?pulsado=_level0.submenu1.botsubmenu0&idioma=eng"]http://www.alcad.net/02productos/inicio.php?pulsado=_level0.submenu1.botsubmenu0&idioma=eng[/URL] ? (either enter the type number in Alcad's item search, or else look through sections: broadband; tv sat; multiswitches). Using older type tv cable to distribute satellite signals will give the symptoms you described, ie an extra amplifier improves signal quality instead of worsening it! This isn't "ideal", but if sat reception is now ok, then fair enough! Otherwise, the best thing to do would be to replace the current - presumably old type - tv cable with satellite grade. [/QUOTE]

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