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11. 

    grahamlthompson
    

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    ricke17 - 2 hours ago  » 
    Tuning into Ch 107 and bringing up the signal test gives me tuner 1 with 100% strength and 100% quality.
    Doing as you said and searching using your method brings up zero channels and strength and quality at 0%. This is the screen before I do the manual search:
    image
    I live in flats with a shared aerial, so your suggestion re. a remotely powered masthead amp isn't possible. How can the signal strength and quality both be 100% (such as on ch 107) yet cause intermittent problems? It's confusing! Incidentally I have none

    of these problems when I watch freeview on my smart tv.

    As Barry indicates you may not be getting COM 7 from Oxford, though from your DTG screen shot it hard to know where else.

    Did you remember to change to DVB-T2 (not DVB-T) ?

    | Mon 23 Nov 2015 15:12:30 #11 |
12. 

    ricke17
    

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    CH32 is displayed - so I have done the manual search with ch32 and the strength is 98% and the quality is 100%.

    | Mon 23 Nov 2015 15:13:40 #12 |
13. 

    grahamlthompson
    

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    ricke17 - 5 minutes ago  » 
    CH32 is displayed - so I have done the manual search with ch32 and the strength is 98% and the quality is 100%.

    How weird perhaps UKfree TV has the incorrect info

    https://ukfree.tv/transmitters/tv/Oxford

    What channel does it say on the DTG page, it's too low res to read properly on your image ?

    | Mon 23 Nov 2015 15:20:09 #13 |
14. 

    ricke17
    

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    It's all confusing. Still non the wiser. How come my smart tv is ok but the humax is like this?

    | Mon 23 Nov 2015 15:22:15 #14 |
15. 

    grahamlthompson
    

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    ricke17 - 6 minutes ago  » 
    It's all confusing. Still non the wiser. How come my smart tv is ok but the humax is like this?

    I am guessing there is an issue with the communal install and that the signal is just too high for the box sensitive tuners. Can you tell us what channel the DTG site says COM 7 uses on Oxford. If it really is 31, the communal system is doing something very peculiar.

    | Mon 23 Nov 2015 15:30:25 #15 |
16. 

    ricke17
    

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    Is it worth putting my attenuator back on and to turn it down so the signal strength is between 65-75%?

    I posted the pics earlier re the DTG. I'm not too sure where I should be reading. But if I'm reading right then it is 31.

    | Mon 23 Nov 2015 15:34:33 #16 |
17. 

    grahamlthompson
    

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    ricke17 - 2 minutes ago  » 
    Is it worth putting my attenuator back on and to turn it down so the signal strength is between 65-75%?
    I posted the pics earlier re the DTG. I'm not too sure where I should be reading. But if I'm reading right then it is 31.

    I thought it said 31 as well (but it's a tad blurred), that's why I checked elsewhere. Certainly worth trying the attenuator, but that still leaves the mystery why the box has locked on to the wrong frequency carrier. If it had been 31+ it would have made some sort of sense but it's bang on 554.0 MHz.

    Is there any way on your TV to identify which UHF carrier Com 7 is using ?

    | Mon 23 Nov 2015 15:42:37 #17 |
18. 

    ricke17
    

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    I do appreciate your help. I've put the attenuator back and turned it down. Channel 107 is at 65% which is higher than some of the other channels I checked (ranging from 50-60%). I've got a Samsung TV and cannot see any option to check things like you can with the Humax. The main reason I got this PVR was because my humax freeview box (from Plusnet) was having the same issues. And it seems to be the brand. I don't want to return this but if it continues to behave like this then it'll have to go back.

    | Mon 23 Nov 2015 15:48:02 #18 |
19. 

    grahamlthompson
    

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    Anyone with a Samsung TV know how to check the UHF Mux used by a specific channel ? Is there a manual tune option ?

    | Mon 23 Nov 2015 15:54:43 #19 |
20. 

    ricke17
    

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    Hopefully someone can help. I'm not technically minded at all, sorry!

    | Mon 23 Nov 2015 15:58:39 #20 |

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