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All posts by Andrew

Below are all of Andrew's postings, with the most recent are at the bottom of the page.

A
Now Thats What I Call Music
Sunday 19 July 2020 1:39PM

Hi.
Since the re-tune last month some of the Freeview channels have started to brake-up (CH55). I have re-aligned the aerial but it made no difference.
We have a widedand High Gain aerial (Labgear High Gain 48-Element) and CH55 (Waltham 12KW) is the weakest signal at 54%.
CH29, CH31 & CH37 (Waltham 25KW) are ok at 78%
CH32, CH34 & CH35 (Waltham 50KW) and ok at 91%
I have just fitted a masthead pre-amp as an experiment but it's min gain is 10db and overloaded the main distribution amplifier so I added a 6db attenuator into the distribution amp's input but now I am getting 90% signal strength on CH55 but it says the Signal Quality is 0% and it keeps dropping.
Any ideas??

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GB
A
Now Thats What I Call Music
Sunday 19 July 2020 9:05PM

Chris.SE: Thank you for the info. I think I will replace the Masthead Pre-Amp with a lower gain variable version, something like this:
MHK2LTE - 1 In 2 Out 75 Series Variable gain Masthead Kit 1-20dB - Antiference
As it has a variable gain from 1-20db and also has LTE filters, that way I can increase the signal a little at a time until CH55 is stable without overloading the distribution amp on the higher power frequancies.

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GB