<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
<br>
<br>
Brian Wood wrote:
<blockquote cite="mid:200806302128.40588.beww@beww.org" type="cite">
<pre wrap="">On Monday 30 June 2008 21:21:25 Daniel wrote:
</pre>
<blockquote type="cite">
<pre wrap=""> there is no such thing as multi path interference with
digital broadcast......I have three antennas on my tower pointed in three
different direction, amp on each one combined in my basement......
</pre>
</blockquote>
<pre wrap=""><!---->
Say What ??? !!!
It manifests itself somewhat differently, but you can definitely have
multipath problems with digital broadcasts, especially in reflector strewn
areas like Manhattan.
beww</pre>
</blockquote>
<br>
Multipath is a huge problem for digital transmissions which is why they
have equalizers to remove the multipath. If you get more multipath
than the circuits can correct, the receiver can no longer get the
signal. If you have less than that, it isn't a problem.<br>
<br>
I used to build equipment to test this stuff.<br>
<a class="moz-txt-link-freetext" href="http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5,062,148.PN.&OS=PN/5,062,148&RS=PN/5,062,148">http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5,062,148.PN.&OS=PN/5,062,148&RS=PN/5,062,148</a><br>
<br>
Allen<br>
<br>
</body>
</html>