[opendtv] Re: Which Modulation Would You Choose on a really bad day?
- From: "Stephen W. Long" <longsw@xxxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Thu, 21 Sep 2006 18:25:13 -0400
The 3db does not exist in the real world, the echoes do. So, you think it
is acceptable that no mobile applications can receive 8VSB?
-----Original Message-----
From: opendtv-bounce@xxxxxxxxxxxxx
[mailto:opendtv-bounce@xxxxxxxxxxxxx]On Behalf Of Doug McDonald
Sent: Wednesday, September 20, 2006 5:06 PM
To: opendtv@xxxxxxxxxxxxx
Subject: [opendtv] Re: Which Modulation Would You Choose on a really bad
day?
To reply to the subject line,
I would choose whichever system gave the most bits at with
the least problems with digital into digital co-channel and
adjacent channel interference.
This chooses ATSC over DVB-T.
The reason is simple. A really bad day is one in which
tropo ducting is strong. This fairly frequently causes,
where I live, bad adjacent channel interference and more
rarely co-channel. The 3 dB interference advantage
of ATSC can really help.
Doug McDonald
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