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Author Combining 2 coax aerial signals help
John
Member

Registered: 30th Jun 03
User status: Offline
4th Aug 06 at 16:45   View User's Profile U2U Member Reply With Quote

Have a rooftop aerial and couple of cctv cameras going into a booster.

Occasionally picture is good but most of the time its rubbish.

Either plugged in separately works ok.

I'm now getting hassled off the rents to get the picture sorted.

I can't think of any other way to combine the signals apart from a better quality y splitter.

Ran out of things to put into google to try and get help.

Any ideas or any sites I can look at?
Dom
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Registered: 13th Sep 03
User status: Offline
4th Aug 06 at 17:42   View User's Profile U2U Member Reply With Quote

from what i remember you cant just use a y-splitter to combined the signals you will need to modululate the two source together, otherwise it causes interference - can get a modulator at maplin's but i dont think there that cheap.

Would be simpler to run the CCTV feed sperately and distrubute it to the tvs that need it
John
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Registered: 30th Jun 03
User status: Offline
4th Aug 06 at 17:53   View User's Profile U2U Member Reply With Quote

It will be just running them into the y-splitter that is causing the interference.
Even i'll just have to see if there is anything that does the job properly.
Its a hassle to change all the wiring or i'd run everything properly with higher quality stuff for a start.
Cheers though.
abdus
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Registered: 23rd Feb 06
User status: Offline
4th Aug 06 at 18:08   View User's Profile U2U Member Reply With Quote

normally, you can use a capacitor (condensator) to do the job...

connect the axial bit from each cable through the capacitor tips...the rest (around the axial bit) connects...but the 2 should be isolated properly...i do this for my different tv axial cables...

but i don;t know the range of capacities you would need
John
Member

Registered: 30th Jun 03
User status: Offline
4th Aug 06 at 18:21   View User's Profile U2U Member Reply With Quote

Hmm would act as a filter.
Good idea.

I've slightly tweaked the channels the cctv feeds are showing on and it seems to have done enough to get them off my back for a bit till I can be annoyed doing it.

 
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