Freeview oddity.

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Discussion

Roo

Original Poster:

11,503 posts

213 months

Friday 8th May 2009
quotequote all
I've been using a freeview box on my TV in the lounge for a couple of years no problem. Having done some redecorating I decided to replace the little portable in my conversatory with a slightly larger LCD with freeview built in.
Not surprisingly this didn't work particulalry well even with a digital portable aerial with amplifier so I popped in to the local aerial installer.

Had a conversation about running two leads from one mast, one to the lounge one to the conservatory, no problem but recommended also fitting a new mast. The current one was probably 12-15 years old. Agreed to have this done and it was fitted two days later.

Now the oddity.
The new TV in the conservatory works fine but the one in the lounge won't pick up Channel 5, all the other stations are fine. I've checked all the leads and connections and everything seems OK. This setup previously had no problems at all.

Any suggestions?

The freeview box is only a couple of months old, and I haven't as yet carried the new TV into the lounge to connect to the lead there to see if it suffers from the same problem.

The_Burg

4,848 posts

220 months

Friday 8th May 2009
quotequote all
Rescan you channels? May be on a different transmitter.

Roo

Original Poster:

11,503 posts

213 months

Friday 8th May 2009
quotequote all
The_Burg said:
Rescan you channels? May be on a different transmitter.
Done that already. The transmitter is only a few miles away. When you select channel 5 it comes up with 'check antenna/cable' but the one in the conservatory works fine from the same mast.

headcase

2,389 posts

223 months

Friday 8th May 2009
quotequote all
Its not normally a good idea running 2 cabels from one aerial unless the aerial was specifically designed to do it.
Id say its a problem with either aerial alignment or just a bad connection on the cable to the tv that has the fault, basically phone up the aerial guy and tell him, he should be a ble to fix that FOC.

Roo

Original Poster:

11,503 posts

213 months

Friday 8th May 2009
quotequote all
headcase said:
Its not normally a good idea running 2 cabels from one aerial unless the aerial was specifically designed to do it.
Id say its a problem with either aerial alignment or just a bad connection on the cable to the tv that has the fault, basically phone up the aerial guy and tell him, he should be a ble to fix that FOC.
The lead from the mast goes into a splitter box on the house, then two leads - one to either end of the house.

I just can't qork out why one is fine and the other isn't.

robinhood21

30,831 posts

238 months

Friday 8th May 2009
quotequote all
I have a similar'ish problem; the old TV in my office used to work fine through a digibox including C5. Now replaced with a digital TV so no box required. Trouble being, when viewing C5, I sometimes lose the picture and a message pops up say insufficient signal strength. At a guess, would say the inbuilt decoder requires a stronger signal than the old digibox.

XB70

2,491 posts

202 months

Sunday 10th May 2009
quotequote all
Hi

We have exactly the same problem! Had an external freeview box, was able to get 5 fine.

Get a new Panasonic plasma last week with an inbuilt tuner, hook the same aerial connection to the tv (as we had hooked up to the external box previously) and Channel 5 looks like the distorted satellite shots from Independence Day...then no signal at all!

What the????

Any thoughts?

headcase

2,389 posts

223 months

Sunday 10th May 2009
quotequote all
Not unuaual at all, i install TV's for a living and come across this problem nearly every day, basically it boils down to the signal not being good enough for one reason or another. One reason can be that the inetgrated TV just needs a stronger signal than the Freeview box did (aerial upgrade), the more common reason is that when you unplugged the Aerial from the old freeview box that you pulled it out by holding the wire and not the plug and therefore disloged the connection somewhat. Try re fitting the Aerial plug correctly (just bear in mind that the cable manufactuter went to great lengths to keep the center core insulated from the outer core so dont short the two together in the plug! (even if it is a moulded cable you can break by pulling them out by the cable)
Basically check all aerial connections are good, try waggling them all and see if the picture freezes or breaks up (normally 1 sec after you waggle).

Edited by headcase on Sunday 10th May 20:26

headcase

2,389 posts

223 months

Sunday 10th May 2009
quotequote all
Roo said:
headcase said:
Its not normally a good idea running 2 cabels from one aerial unless the aerial was specifically designed to do it.
Id say its a problem with either aerial alignment or just a bad connection on the cable to the tv that has the fault, basically phone up the aerial guy and tell him, he should be a ble to fix that FOC.
The lead from the mast goes into a splitter box on the house, then two leads - one to either end of the house.

I just can't qork out why one is fine and the other isn't.
It is still a signal strength issue with the areial install, it sounds like you have had a bodged job really m8. Try swapping over your TV's and see if the fault moves with the Tv (i bet it dosent).

The problem with splitting the aerial to 2 TV's is that you get less than full signal strength going to both TV's (not quite half but less than full strength), so if your signal was ok b4 i can fully understand it being poor now.
The correct way to do it is to use a distribution amp (either mast head or internal) and not just a passive splitter. Its not a hard job for a real aerial installer to do, id get him back, dont tell him what to do, just tell him what your problem is and how it was ok b4 he fixed it wink

Roo

Original Poster:

11,503 posts

213 months

Monday 11th May 2009
quotequote all
headcase said:
Roo said:
headcase said:
Its not normally a good idea running 2 cabels from one aerial unless the aerial was specifically designed to do it.
Id say its a problem with either aerial alignment or just a bad connection on the cable to the tv that has the fault, basically phone up the aerial guy and tell him, he should be a ble to fix that FOC.
The lead from the mast goes into a splitter box on the house, then two leads - one to either end of the house.

I just can't qork out why one is fine and the other isn't.
It is still a signal strength issue with the areial install, it sounds like you have had a bodged job really m8. Try swapping over your TV's and see if the fault moves with the Tv (i bet it dosent).

The problem with splitting the aerial to 2 TV's is that you get less than full signal strength going to both TV's (not quite half but less than full strength), so if your signal was ok b4 i can fully understand it being poor now.
The correct way to do it is to use a distribution amp (either mast head or internal) and not just a passive splitter. Its not a hard job for a real aerial installer to do, id get him back, dont tell him what to do, just tell him what your problem is and how it was ok b4 he fixed it wink
Thanks for that. I meant to try the new TV through the lounge connection at the weekend but didn't get time. I'll try and do it this week and see what happens.

cjs

10,884 posts

257 months

Monday 11th May 2009
quotequote all
The C5 issue appears to have started over the past few weeks, my mums TV has started playing up on C5/Fiver/Five USA, it has been fine for years. I suspect they have turned down the signal strength on one channels/Mux. We are on Crystal Palace Transmitter.

GreenDog

2,261 posts

198 months

Monday 11th May 2009
quotequote all
I suspect the common theme here is that inbuilt freeview decoders are pants ! I've just returned an 37" LCD because the picture quality via the inbuilt decoder was poor and seemed to be getting worse. Other TVs around the house have seperate decoders are are fine even though they all feed from the same aerial (via a professionally fitted booster in the loft).

headcase

2,389 posts

223 months

Monday 11th May 2009
quotequote all
I find it to be the other way around actually, with freeview boxes you generally have to reset them every time the dog farts, with integrated stuff isnt normally that niggly, but i do agree with you, the picture quality can be real dire on some sets.

mybrainhurts

90,809 posts

261 months

Monday 11th May 2009
quotequote all
I'm receiving Freeview through my manky old aerial and can't get C5...

I assume I need a better aerial....

igiveup

2,875 posts

288 months

Monday 11th May 2009
quotequote all
Roo said:
headcase said:
Roo said:
headcase said:
Its not normally a good idea running 2 cabels from one aerial unless the aerial was specifically designed to do it.
Id say its a problem with either aerial alignment or just a bad connection on the cable to the tv that has the fault, basically phone up the aerial guy and tell him, he should be a ble to fix that FOC.
The lead from the mast goes into a splitter box on the house, then two leads - one to either end of the house.

I just can't qork out why one is fine and the other isn't.
It is still a signal strength issue with the areial install, it sounds like you have had a bodged job really m8. Try swapping over your TV's and see if the fault moves with the Tv (i bet it dosent).

The problem with splitting the aerial to 2 TV's is that you get less than full signal strength going to both TV's (not quite half but less than full strength), so if your signal was ok b4 i can fully understand it being poor now.
The correct way to do it is to use a distribution amp (either mast head or internal) and not just a passive splitter. Its not a hard job for a real aerial installer to do, id get him back, dont tell him what to do, just tell him what your problem is and how it was ok b4 he fixed it wink
Thanks for that. I meant to try the new TV through the lounge connection at the weekend but didn't get time. I'll try and do it this week and see what happens.
idea Why not just plug the Digi Box into the new TV's scart socket, gotta be easier than lugging a TV around?

robinhood21

30,831 posts

238 months

Monday 11th May 2009
quotequote all
mybrainhurts said:
I'm receiving Freeview through my manky old aerial and can't get C5...

I assume I need a better aerial....
If the neighbors are receiving C5 OK, would say yes.

V6

3,770 posts

227 months

Tuesday 12th May 2009
quotequote all
You want to watch channel 5?