BT TV BOX 4k UHD - Some Channels pixilate

[Blueastra0]

I received the new 4K UHD box at the end of March and it works ok with 1 exception.

If I watch the Sky News channel (233) or the Sky Pick channel (11) the picture starts to break up and pixilate and becomes unwatchable. Other channels seems unaffected.

I have tried the help desk and worked through their advise and tried factory reset. No change.

Last week using the on-line-chat the guy I was in touch with said there was a known issue with the 4K box which was being looked into, and as I still hold the original BT TV box (due to covid lockdown) he suggested I continue to use that which works ok.

Does anyone else have this issue

Thanks  

Blueastra0

[iniltous]

Both the channels affected are just Freeview channels, so unlikely to be anything in particular with BTTV, there was a post someone having issues with a couple of channels , when the same channels worked fine on the TV’s own freeview tuner ( so presumably eliminating the aerial as the culprit) and AFAIR the solution was an aerial attenuator, in effect the BTTV was being swamped with signal ( as apposed to not enough signal ), assuming your TV has an Freeview tuner, do those channels work OK if the aerial is connected direct into the TV ?

[Blueastra0]

The channels work fine through the TV Freeview.

The channels work fine through the old BT Box .

The channels play up only when being watched through the new BT 4K UHD box.

I think this eliminates the aerial from the equation.

One of the BT guys on the Chat line was adamant that there was a know issue with the 4K UHD Box?

Thanks

[zulu17]

@Blueastra0 Pick and Sky News are both transmitted on the Freeview Arqiva A multiplex.

Which  Freeview transmitter do you receive your transmissions from ?

[TimCurtis]

@Blueastra0 

You need to check the signal quality & strength on the channels affected as pixelation is caused by a signal that is either a too strong or too weak.

Ideally your signal strength should be in the region of 90/95%. 100% would likely be too strong and under 70% too weak.

[Blueastra0]

It comes from Winter Hill. 

[Blueastra0]

I seem to recall checking aerial channel strength and I think it was 95  or just over

[NigelB72]

@Blueastra0 if you have high signal strength or quality, you'd probably benefit from an attenuator. These are easily available from Amazon and eBay for around £10. Most people report back good results with them

[TimCurtis]

@Blueastra0 

Is that with the new or old box?

Worth doing a check on both.

My boxes , a T4000 & T2100 , both work fine at 94/95% but I'll check for both those channels.

[Blueastra0]

Just on new 4k UHD Box. Old one works fine.

Have ordered an aerial attenuator as suggested - worth a go for £10

Many thanks

Blueastra0