[Scan-DC] Sig Quality - TV Converters

[W4NNG]

Most likly signal quality is the BER (bit error rate) and yes multipath, 
especially when it's shifting would increase BER.

I wish I understood the ACPO-25 techniques better for handling shifting 
multi-path, but 8VSB is probably the least tolorant of the major decoding 
schemes in use today.  According to an  IEEE report I saw some years ago 
they indicated that of all the DTV scheames used world-side 8VSP was the 
least tolorant of MP.

----- Original Message ----- 
From: <b_thom at juno.com>
To: <Scan-DC at mailman.qth.net>
Sent: Thursday, February 26, 2009 10:25 PM
Subject: Re: [Scan-DC] Sig Quality - TV Converters




-- "W4NNG" <w4nng at soalex.us> wrote:
This may be of particular interest to scanner folks

One aspect of the an Apex is that in addition to signal strenght it has a
signal quality readout. Very interesting to play with and see the relative
lack of correlation between SQ and strenght as one rotates an antenna.    I
haven't seen any other boxes that have SQ.

What's signal quality? How is that defined? Lack of multipath?

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