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Terrestrial Broadcasting
Terrestrial Television, Digital and Analogue
The amount of difference in signal high pressure makes
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<blockquote data-quote="Steve_W" data-source="post: 848714" data-attributes="member: 385359"><p>Just out of interest, down here in South East Kent, currently the atmospheric pressure is 1024 mb. Normal is around 950 (I'm led to believe, I'm not a pro!).</p><p></p><p>So when I connect my spectrum analyser to an incoming aerial to see what the signal is like, I'm seeing an increase of around 8db.</p><p></p><p>Is there any type of scale that exists to work out how much the signal raises or lowers according to pressure by frequency in mhz or UHF channel allocation? Lots of my customers are getting co-channel interference due to flooding from Belgium & France in certain coastal areas, it would help me if I knew.</p><p></p><p>I usually look at the propagation charts here for this info:</p><p></p><p><a href="http://www.dxinfocentre.com/tropo_eur.html#hour6" target="_blank">http://www.dxinfocentre.com/tropo_eur.html#hour6</a></p><p></p><p>And this for my local one:</p><p></p><p><a href="http://www.worldweatheronline.com/Margate-weather/Kent/GB.aspx" target="_blank">http://www.worldweatheronline.com/Margate-weather/Kent/GB.aspx</a></p><p></p><p>Thanks guys!</p></blockquote><p></p>
[QUOTE="Steve_W, post: 848714, member: 385359"] Just out of interest, down here in South East Kent, currently the atmospheric pressure is 1024 mb. Normal is around 950 (I'm led to believe, I'm not a pro!). So when I connect my spectrum analyser to an incoming aerial to see what the signal is like, I'm seeing an increase of around 8db. Is there any type of scale that exists to work out how much the signal raises or lowers according to pressure by frequency in mhz or UHF channel allocation? Lots of my customers are getting co-channel interference due to flooding from Belgium & France in certain coastal areas, it would help me if I knew. I usually look at the propagation charts here for this info: [URL="http://www.dxinfocentre.com/tropo_eur.html#hour6"]http://www.dxinfocentre.com/tropo_eur.html#hour6[/URL] And this for my local one: [URL="http://www.worldweatheronline.com/Margate-weather/Kent/GB.aspx"]http://www.worldweatheronline.com/Margate-weather/Kent/GB.aspx[/URL] Thanks guys! [/QUOTE]
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Terrestrial Broadcasting
Terrestrial Television, Digital and Analogue
The amount of difference in signal high pressure makes
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