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72 posts

Master Geek
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Topic # 242977 22-Nov-2018 10:12
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We moved into a new house in Torbay about 6 months ago. There's a UHF aerial on the roof but it wasn't working (no signal detected) so I got an aerial specialist out. He said it was missing a power supply for the masthead amp (which the previous owners probably took with them by accident) so he installed a new one. Initially everything worked fine, but recently I noticed a lot of pixellation on any TVNZ channels (1, 2, 1+1, 2+1, Duke) and now those channels have stopped working at all - I just get a "No signal" message. All other "terrestrial" channels work fine.

 

This isn't a huge deal because I can still get those channels via the On-demand app, plus I don't watch a huge amount of broadcast TV. However, I'm keen to know what has likely gone wrong.

 

Before I pay a call-out charge for the aerial specialist, does anyone have any suggestions to troubleshoot?

 

Thanks,

 

Martin


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156 posts

Master Geek
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  Reply # 2131653 22-Nov-2018 11:12
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Why not get the installer to come back. Clearly he didnt do something right.




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Master Geek
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  Reply # 2131655 22-Nov-2018 11:16
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Bluntj:

 

Why not get the installer to come back. Clearly he didnt do something right.

 

 

It was working fine, though.


 
 
 
 


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  Reply # 2131671 22-Nov-2018 11:28
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Means nothings. Reception can change with the seasons, do you have line of sight, my guess is no.


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  Reply # 2131674 22-Nov-2018 11:29
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If you want to troubleshoot then without a proper spectrum analyser about the only other choice is a ladder.


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Master Geek
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  Reply # 2131687 22-Nov-2018 11:41
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mgbridges:

 

Bluntj:

 

Why not get the installer to come back. Clearly he didnt do something right.

 

 

It was working fine, though.

 

 

Get him back...clearly something has gone wrong.


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Ultimate Geek
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  Reply # 2131753 22-Nov-2018 12:36
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Bluntj:

Why not get the installer to come back. Clearly he didnt do something right.


Not necessarily, there could be a number of reasons eg if it was wet he may not have gone on the roof.
He should probably have protected himself however by saying something like “ The signal is fine / marginal whatever, but as you haven’t used it I cant say how it will perform in various weather conditions

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  Reply # 2131791 22-Nov-2018 12:48
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Bluntj:

mgbridges:


Bluntj:


Why not get the installer to come back. Clearly he didnt do something right.



It was working fine, though.



Get him back...clearly something has gone wrong.



The installer replaced a missing masthead amplifier power supply. That doesn't make him responsible for every subsequent problem. If there's been bad weather the aerial may have twisted on the pole. If that happens when you have good reception take a picture that shows the aerial position in relation to the roof for future reference.

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  Reply # 2131794 22-Nov-2018 13:00
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Try re-tuning?




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Master Geek
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  Reply # 2131809 22-Nov-2018 13:08
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Dingbatt: Try re-tuning?

 

Would a modern TV not auto-retune? I haven't tried, to be honest. Maybe I'll give that a go first. Thanks.


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Ultimate Geek
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  Reply # 2132108 22-Nov-2018 18:31
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Many things could have gone wrong, those masthead amps don't last forever either


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