[mythtv-users] Antenna attenuator question

[Alen Edwards]

Brian Wood wrote:
> On Monday 30 June 2008 21:21:25 Daniel wrote:
>   
>>  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......
>>     
>
>
> 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

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.

I used to build equipment to test this stuff.
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

Allen

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