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Tech Head - The Technology Section
The Work Bench and Soldering Station
UHF interference
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<blockquote data-quote="spiney" data-source="post: 154299" data-attributes="member: 192438"><p>to simba 27 ....</p><p></p><p>1) yes, that type of splitter is suitable, being a 3-way splitter with power pass on 1 port (but that's irrelevant here!).</p><p></p><p>However, you'll have to replace the UHF push connectors with f types. Before doing so, since removing the aerial makes some difference, you might want to first try a UHF bandpass filter between aerial and f/v box. If that "does the trick", then you wouldn't have to do anything else!</p><p></p><p>2) Do not split the aerial output prior to Freeview receiver input, also there's no need to include the freeview passthrough output, unless you specially want to get the analogue tv channels as well (but for what reason ?).</p><p></p><p>3) I'd try:</p><p></p><p>f/v mod - splitter output port 1.</p><p></p><p>dvd mod - port 2.</p><p></p><p>sat mod - port 3.</p><p></p><p>splitter input - video aerial socket.</p><p></p><p>video output - multiway distribution amplifier.</p><p></p><p>4) If you still want the analogue tv channels - in addition to 4 modulators - then this should cut down the patterning but you'll have to be careful about which UHF channels to re-use! You can re-use the freeview channels, but stay away from the analogue ones, and space the re-used channels at least 2 channel numbers apart (since domestic modulators are double sideband!).</p></blockquote><p></p>
[QUOTE="spiney, post: 154299, member: 192438"] to simba 27 .... 1) yes, that type of splitter is suitable, being a 3-way splitter with power pass on 1 port (but that's irrelevant here!). However, you'll have to replace the UHF push connectors with f types. Before doing so, since removing the aerial makes some difference, you might want to first try a UHF bandpass filter between aerial and f/v box. If that "does the trick", then you wouldn't have to do anything else! 2) Do not split the aerial output prior to Freeview receiver input, also there's no need to include the freeview passthrough output, unless you specially want to get the analogue tv channels as well (but for what reason ?). 3) I'd try: f/v mod - splitter output port 1. dvd mod - port 2. sat mod - port 3. splitter input - video aerial socket. video output - multiway distribution amplifier. 4) If you still want the analogue tv channels - in addition to 4 modulators - then this should cut down the patterning but you'll have to be careful about which UHF channels to re-use! You can re-use the freeview channels, but stay away from the analogue ones, and space the re-used channels at least 2 channel numbers apart (since domestic modulators are double sideband!). [/QUOTE]
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UHF interference
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