This is an old revision of this page, as edited by Andyross (talk | contribs) at 16:45, 26 December 2005. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 16:45, 26 December 2005 by Andyross (talk | contribs)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)The Motorola 3412 (full name is Motorola DCT-3412) is a digital-tuner only version of the Motorola 6412. It is identical to the 6412, except that it is unable to tune in analog channels. It is only used on systems that have analog-digital simulcasting (ADS) active. It is the same width as the 6412, but is not as deep.
With analog-digital simulcasting, when you attempt to tune what would normally be an analog channel (normally those with numbers below 100), it will actually tune in a digital subchannel that is a duplicate of the analog channel. The advantage of ADS is the elimination of most interference and noise issues. Also, 10-12 digital channels can be compressed into the space that would normally be used by one analog channel. Over time, analog channels will be dropped, allowing even more digital channels to be added. The drawbacks to digital broadcasting, as always, are the problems with picture quality artifacts due to digital compression.
--Andyross 16:45, 26 December 2005 (UTC)