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AndyS22
Contributor
2,958 Views
Message 1 of 14

Lost BBC 4 HD, BBC News HD, Quest HD

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BBC 4 HD, BBC News HD and Quest HD have disapered from the EPG.  

I've tried doing a retune a number of times and these channels are still missing.  

Signal strength is 92% and signal quality is 100% on BBC1. I'm located in North London.

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13 REPLIES 13
zulu17
Distinguished Guru
Distinguished Guru
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Message 2 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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Looks like you have lost the COM7 and C0M8 channels.

Do you still receive the missing channels if you use an aerial connection into TV using the TVs own tuner.  ?

 

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AndyS22
Contributor
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Message 3 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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Did a manual software update to get Britbox and then a channel retune and all the missing HD channels are now back.

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NigelB72
Recognised Expert
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Message 4 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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I had the same issue a few weeks ago. I think it was down to Arqiva updating kit and changing frequencies. It's been ongoing for a few weeks now

ak1275
Aspiring Contributor
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Message 5 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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I'm receiving Quest HD on Com7  (ch55) from WinterHill and during the BSB from Knockhill at around 5.30pm the complete MUX signal strength dropped to 0% on the BT box signal checker.

All other MUX signals are running at least 91% with 100% signal quality!

Retuned the box and the channels have now gone from the guide so still missing.

Any thoughts why? Mast info says everything is fine. Aerial looks ok from ground level, direction, condition etc.

Alan.

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Shyboy
Aspiring Contributor
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Message 6 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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It could be interference from 4G mobile.

Have a look at this. You can get a free filter from them.

at800 | 4G & Freeview | 4G interference | 4G Filters | 800 MHz

 

 

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Sundance
Aspiring Contributor
1,492 Views
Message 7 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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I also have lost  HD  channels on youview . The same as stated with RT  news  plus  various other freeview . PBS +1, more +1, forces  tv,  quest red +1 . Can receive them on TV itself. Have done all the usual stuff  as in re tune, compete factory reset and  with an attenuator . There are no works going on at my transmitter which  is Crystal palace.  Very frustrating again with my  4K UHD  box.  So it must be the box . Am wondering if it's worth upgrading my tv package to get the new  pro box  in the hope it does not have the same problem. Any thoughts on this would be appreciated.. 

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ak1275
Aspiring Contributor
1,472 Views
Message 8 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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All,

Solved!  Signal on all muxes was 93%/100% quality, but ch55 Com7 was dead.

So, played around with coax cable from rear of the BT box to wall socket, removed wall socket and remade internal coax connections. Rotating the coax plug within the socket made a big difference. Just by checking out this section of the signal path, it resulted in a 38% signal and 80-90% quality reading for Com7.

The other muxes remained at the same level.

Will be replacing the wall socket and link cable at some point.

Sundance
Aspiring Contributor
1,214 Views
Message 9 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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Oh come on we all know this is not  resolved. This is an on going problem with these BT  boxes.  And please don't blame freeview signal..  I'm a customer and a supporter of the package they give to me, however  ... TIC  TOK . Please acknowledge there is a problem....

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gomezz
Recognised Expert
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Message 10 of 14

Re: Lost BBC 4 HD, BBC News HD, Quest HD

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Sorry, but often this *is* down to a marginal signal from these low power Freeview MUXes. Only takes a change in atmospheric conditions to tip reception over the edge. The TV tuner only needs to be slightly more sensitive to not also be affected. On top of that only takes one stray bit of shielding braid in a connection of the aerial lead in the user's home to cause a problem which is what could be case with the other user twisting the plug in the socket to "fix" it.

Until and unless you have eliminated this as a cause would I start suspecting a fault with the individual unit and certainly would take a lot more evidence from a lot more users to suggest a systemic design or manufacturing fault as you seem to imply.

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