[mythtv-users] QAM vs. Firewire

R. G. Newbury newbury at mandamus.org
Fri Mar 16 22:17:29 UTC 2007


jmk wrote:

> 
> This may be a dumb question... I'm wondering what level of cable service
> I need in order to access QAM. Do I need the HD tier, if I decide that
> all I want is the OTA HD via QAM? 

You are confusing a number of things here.

Analog and digital are types of delivery streams.
Sd and HD are quality standards for the stream delivered, with HD of 
course being much better.
Cable can deliver analog or digital streams. The digital streams can be 
encrypted or unencrypted, bnut if unencrypted are usually QAM256 encoded 
in order to provide more/better signals.
The encrypted strems need a set top box.
Entirely separate and distinct, is Over The Air (OTA) digital broadcast.
OTA broadcasts can be HD or SD and at present lots of the -DT stations 
are broadcasting at SD levels. OTA does not use QAM256.

So your last phrase makes no sense.


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