I have now lost all signal can you tell me what the problem might be?
Brian Butterworth published on UK Free TV The problem could be one of:
- the aerial has been moved or damaged;
- the cables or connectors that connect the digibox to the aerial are damaged;
- the digibox has broken.
If you have a "spare" digibox you use this to test the aerial connection. Can you still watch analogue TV OK?
All questions
In this section
Saturday, 8 November 2014
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Excitymouse8:46 PM
Liskeard
We are very close to the Caradon receiver - postcode PL14 5EA possibly too close as we have been told we are in the shadow of the hill. will try BBC News HD to see if that fails as well. Have not tried that.
Thanks so far.
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Excitymouse's: mapE's Freeview map terrainE's terrain plot wavesE's frequency data E's Freeview Detailed Coverage
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Excitymouse9:01 PM
just tried 107 and 109 and they are both fine picture and sound good. but nothing on 240
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Mike Davison9:24 PM
Wetherby
Excitymouse: 240 is the internet streaming feed for Motors TV and not compatible with all Freeview equipment(!). The Motors TV broadcast service from COM7, which carries BBC News HD on 107 and you say you get OK, is on 71. You may need a manual retune on UHF Ch 31 to find it.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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jb389:40 PM
Excitymouse: I can certainly see what you mean by very close! indications being that you are located at only 2.1 miles away from the transmitter, although a signal path check using the terrain indicator does not really show your location as being in the shadow of a hill, although obviously you will know whether you are or not by being resident in the area. Can you see the mast?
As Caradon Hills PSB transmitters are radiating on 100Kw and with the commercials being on 50Kw, under normal circumstances any receiver located at only a couple of miles away could easily suffer from overload problems, and as such an aerial installer "might" possibly have incorporated an attenuator in line with the aerial to take the edge off the signal, the point being, that if one has been fitted in your aerials down lead? the dB rating of the device might be a tad high and is partially killing the signal from COM7, this transmitter only radiating on 11.57KW.
Try carrying out a signal strength / quality check on BBC1HD (Mux C22) making a note of the levels seen, then (if motors has not returned) go into the TV's tuning menu and select "manual tune" followed by entering Mux C31(COM7) into the box but do "not" press search or scan, as on most receivers if any signal exists the level of will appear on the signal bar.
Further advice dependant on the outcome of this test.
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Dave Lindsay
11:39 PM
11:39 PM
jb38: The mast is clearly visible in the Streetview photos!
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jb3811:43 PM
Excitymouse : My reply was based on what you had said in your posting @ 08.46PM, being unaware that you had followed this up @ 09.01PM, but now having read that said in your 09.01PM update, should you be able to receive 107 & 109 but not 71 indicates that your TV or boxes EPG requires updating, this achieved by removing the TV or boxes aerial connector then carrying out an auto tune to blank out everything stored in the tuners memory, reconnecting the aerial on completion followed by carrying out a second auto-tune to reload the channels.
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jb3811:55 PM
Dave Lindsay: Yes, thanks for the confirmation of that seen on Megalithia, as I was unable to use Google Earth some unknown reason earlier on, albeit that it seems to be OK now.
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Sunday, 9 November 2014
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Excitymouse4:55 PM
Thanks guys we can certainly see the mast from here. will be carrying out the retunes as sugested and hopefully that will sort everything.
Many thanks again
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Thursday, 13 November 2014
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Steve9:12 PM
Hi a few days ago all my bbc channels suddenly became distorted. The aerial is in the loft and hasn't moved and I have 100 % signal and nearly every other channel. It's not just bbc1 it's all bbc broadcasts.
I am very confused as to why the signal has vanished.
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shaun9:48 PM
Steve: Same here with the bbc channels...I have been unable to receive any for 2 days, retuned several times but no bbc, all other channels fine. I am in kippax, Leeds with full clear view of emley moor.
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