[opendtv] Re: Which Modulation Would You Choose on a really bad day?

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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