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Co axial connectors (Read 7246 times)
Fed up female
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Co axial connectors
Jun 29th, 2009, 5:02pm
 
Can somebody please tell me if there is any noticable difference qualitywise between a plastic and a metal aerial connector (the bit that the wire goes into to plug into aerial socket)?

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Lectrician
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Re: Co axial connectors
Reply #1 - Jun 29th, 2009, 6:03pm
 
Not really.

Any type of plug/socket arrangement will inherently degrade the signal slightly.  This is not usually an issue, as the signal from the aerial will usually be of sufficient strength where a little loss it not noticeable.  Just as the longer a cable run is, the more losses incurred.

Does your question stem from having poor reception and trying to sort this issue?
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« Last Edit: Jun 29th, 2009, 10:32pm by Lectrician »  

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Re: Co axial connectors
Reply #2 - Jun 29th, 2009, 10:18pm
 
If I have to fit one myself I prefer metal ones as they are more robust. However normally I buy aerial cable with the plugs already moulded on as they are generally reliable.  

If you were building a new house I would suggest opting for wall plates with connectors used for satelite TV dishes (called F-Series). They are better quality and can also be used for regular TV. Obviously you need a regular plug to go into the TV but places like Maplin sell cables with F-Series on one end and regular TV aerial on the other.

If you have a recieption problem let us know.
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« Last Edit: Jun 29th, 2009, 10:20pm by CWatters »  
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Re: Co axial connectors
Reply #3 - Jun 30th, 2009, 10:02am
 
I have found that the plastic types that you buy in the sheds are flimsy and can be difficult to get tight connections etc.
I tend to use metal quick fit (screw-on) F connectors as CWatters mentioned and then metal quick fit (screw-on) standard connectors for the telly.
http://www.screwfix.com/prods/17061/Electrical-Supplies/TV-Range/Leads-Connector...
http://www.screwfix.com/prods/78129/Electrical-Supplies/TV-Range/Leads-Connector...
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Re: Co axial connectors
Reply #4 - Jun 30th, 2009, 2:16pm
 
Alot of people use the F plugs on leads, and then use the converters to change it to a standard UHF male or female.
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Fed up female
Re: Co axial connectors
Reply #5 - Jun 30th, 2009, 5:10pm
 
Thanks for advice. Yes, signal keeps degrading. I think I will try the metal connector as the plastic one comes off anyway( we already know I have a problem with tightening things up properly!).
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Re: Co axial connectors
Reply #6 - Jun 30th, 2009, 6:30pm
 
Quote:
Thanks for advice. Yes, signal keeps degrading.  


Could be the hot and humid weather this week. You gone digital yet or is that not an option in your area yet?







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« Last Edit: Jun 30th, 2009, 6:31pm by CWatters »  
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Fed up female
Re: Co axial connectors
Reply #7 - Jul 1st, 2009, 5:25pm
 
This is an old set that doesn't have scart connection otherwise I would have bought a digital set top box but doesn't that depend on aerial connection too?
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Re: Co axial connectors
Reply #8 - Jul 1st, 2009, 11:14pm
 
Yes digital TV needs an aerial - in fact depending on your area you might even need a different aerial. I rigged up my own in the loft and get the best reception I've ever had.

Currently digital transmitters are broadcasting at reduced power so they don't interfere with the analogue ones. This causes a lot of problems that should go away once switchover occurs and they boost the power.

If you have an old VCR you can probably connect a freeview box to that and connect the VCR to the TV.
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« Last Edit: Jul 1st, 2009, 11:19pm by CWatters »  
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Fed up female
Re: Co axial connectors
Reply #9 - Jul 2nd, 2009, 4:25pm
 
Interesting, might try an old VCR then. Can't I get some sort of booster box for the aerial signal as we won't be getting digital in this area until 2012?
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Re: Co axial connectors
Reply #10 - Jul 3rd, 2009, 9:33pm
 
Back of the set boosters can work but they aren't normally the best solution and can even make things worse depending on what the problem is.  Good practice in weak signal area is to fit a big aerial of the right type as high as possible. Should be mounted outside not in the loft.

If and only if a big aerial still doesn't give a strong enough signal then you can consider a mast head amplifier (eg a booster mounted at the top of the mast next to the aerial).

There are technical reasons why a mast head amplifier is better than one behind the set. For example it amplifies the signal before it's attenuated by the cable down to the TV. All amplifiers add noise to the signal as well as amplifying it so you have to be sure that a weak signal is the problem and that you already have a good aerial installation before considering one.

If the aerial and the cable from the aerial down to the TV is quite old then consider getting both replaced before you go much further.

> we won't be getting digital in this area until 2012?

Ah I see. Trying to recieve digital TV in an area not due to recieve it is pretty difficult or impossible. If you type your postcode into this site and play with the height option it will give you info on what sort of recieption might be possible. It's quite technical though. Otherwise tell us your full post code (if ok with that) and we can see what it says...

http://www.wolfbane.com/cgi-bin/tvd.exe?MAP=661,936
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Fed up female
Re: Co axial connectors
Reply #11 - Jul 11th, 2009, 1:00pm
 
TV reception miraculously perfect again so must have been due to your diagnosis of atmospheric conditions.

Thanks for advice
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Re: Co axial connectors
Reply #12 - Jul 11th, 2009, 3:42pm
 
He's been known to walk on water, too. Grin Grin
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Re: Co axial connectors
Reply #13 - Jul 12th, 2009, 9:20am
 
They do say TV recieption is one of the black arts.
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Re: Co axial connectors
Reply #14 - Jul 12th, 2009, 11:06am
 
Funny you should say that, 'cos our aerial man has something of the night about him and I'm sure I saw him perching on the ridge with his head pulled down into his shoulders.
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