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hdtvmagazine_tips Digest #1114

Started by irish70 • Jun 28, 2005 • 3 posts
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#1
----- HDTV Magazine Tips List -----



This may be trivial, but there is a phenomenon I find fascinating and for
which I have no explanation. We enjoy OTA HD for locals from Tampa here in
Sarasota. We are about 50 miles from most of the Tampa local channel
towers. We are, however, about 75 miles from the CBS tower. Our home is in
a wooded area, adding some excitement to our OTA efforts. We are having one
of those intense summer Florida thunderstorms right now. CBS HD is coming
in great from Tampa. On a clear night, we typically do not get good
reception of that signal. This experience is the inverse of what is logical
to me. Anyone have an interest in educating me as to why this would be?


Ray in Sarasota


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#2
----- HDTV Magazine Tips List -----

Tropospheric Ducting
http://www.hdtvmagazine.com/forum/viewtopic.php?t=5062

There are folks that are really into this and go hunting when conditions
are right!

Richard Fisher
www.HDLibrary.com Published by Tech Services
A division of Mastertech Repair Corporation

Ray Reher wrote:
> ----- HDTV Magazine Tips List -----
>
>
>
> This may be trivial, but there is a phenomenon I find fascinating and for
> which I have no explanation. We enjoy OTA HD for locals from Tampa here in
> Sarasota. We are about 50 miles from most of the Tampa local channel
> towers. We are, however, about 75 miles from the CBS tower. Our home is in
> a wooded area, adding some excitement to our OTA efforts. We are having one
> of those intense summer Florida thunderstorms right now. CBS HD is coming
> in great from Tampa. On a clear night, we typically do not get good
> reception of that signal. This experience is the inverse of what is logical
> to me. Anyone have an interest in educating me as to why this would be?
>
>
> Ray in Sarasota
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same day) send an email to:
> [email protected]
>


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#3
----- HDTV Magazine Tips List -----

Ray,

There is more than one possible explanation here, but probably the most
likely is the ?mirage effect?, which bends radio waves upward when
there is a warm air layer next to the ground. This makes it necessary
for the signal to diffract more to follow the terrain and curvature of
the earth. A thunderstorm will stir up the air enough to eliminate the
warm air layer.

Ken


-----Original Message-----
From: Ray Reher <[email protected]>
To: HDTV Magazine <[email protected]>
Sent: Tue, 28 Jun 2005 18:12:11 -0400
Subject: Re: hdtvmagazine_tips Digest #1114

----- HDTV Magazine Tips List -----



This may be trivial, but there is a phenomenon I find fascinating and
for
which I have no explanation. We enjoy OTA HD for locals from Tampa
here in
Sarasota. We are about 50 miles from most of the Tampa local channel
towers. We are, however, about 75 miles from the CBS tower. Our home
is in
a wooded area, adding some excitement to our OTA efforts. We are
having one
of those intense summer Florida thunderstorms right now. CBS HD is
coming
in great from Tampa. On a clear night, we typically do not get good
reception of that signal. This experience is the inverse of what is
logical
to me. Anyone have an interest in educating me as to why this would be?


Ray in Sarasota


To unsubscribe please click: [email protected]

To receive the digest mode (one email a day made from all posted that
same day)
send an email to:
[email protected]


To unsubscribe please click: [email protected]

To receive the digest mode (one email a day made from all posted that same day) send an email to:
[email protected]