All posts by Stephen Phillips
Below are all of Stephen Phillips's postings, with the most recent are at the bottom of the page.MO'P - It's about what happens 5 miles high, not at ground level where surface heating predominates. And sun heating is only one factor in what happens.
Tropospheric propagation - Wikipedia, the free encyclopedia
Here's a link for your homework!
(LL145HD)
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Terry - Do your neighbours have the same experience?
Do you lose ALL channels?
Are there trees in your line of sight?
Have you tried removing your booster?
Might power to your amplifier be lost? Do you know where it come from?
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Nikki - read and follow the instructions in the yellow posting box
Were you previously using analogue or digital?
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Angelina - I suspect you have not retuned successfully. You need a full retune/initial installation.
See the instructions in the yellow box where you post questions.
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HP and VP are Horizontal and Vertical polarisation.
The radio waves do their waving either up and down or sided to side, according to the design of the transmitting antenna. And you use a receiving antenna to match - with elements either sideways or up/down. The "wrong" signal is not noticed by an aerial, so avoids interference with each other.
Main transmitters are horizontal; fill-ins vertical.
As to the rest of your questions; don't know the detail, but the big picture is as you suggest the need to fit a jigsaw of signals into the relief map of Britain.
Where are you in Wrexhamshire? I am in Chirk, so get the Wrekin, but once you get north of Ruabon you can see Granada!
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PS They can have lots of transmitting aerials on a single mast. If you look at the Wolfbane data it shows grid ref and height of transmitter, often same place but different height.
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keith - if you plug your postcode into top right of this page, then select "Digital Trade View" you will see that you should be geting everything strongly from very nearby Sutton Coldfield.
So why are you on the Wrekin, if you are?
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Thursday 21 April 2011 7:46PM
Wrexham
Nathan - IIUC you know that your Ae is 12 degrees off target. The Mux you CAN receive is the very highest frequency, so may be the one least affected by the wrong direction.
12 degrees is a lot unless you are VERY close to a very powerful sender.