pipishop list one for $60.00 on their web site under accessories. I "assume" it is QAM, maybe not. I guess I'm not sure. A few weeks ago there was a thread here about the ATSC and QAM tuners, but can't find it now. It talked about them being not 100% compatible with the software. Maybe I 'm way off base in my assumption? Would like to buy the box, but need a cable tuner. Anyone else that saw this thread? Or, has QAM tuner working?
I think that this is the other thread that you referenced:
http://www.satelliteguys.us/azbox-discussion/224375-atsc-qam-tuner-azbox-premium-plus.html
I have the ATSC/QAM tuner for the AZBox premium (not the plus - but a plus version is available). I haven't done too much much testing with QAM because of the issues I had with ATSC firmware performance.
I did scan in the QAM cable channels selecting FTA only. This scanned in everything. The FTA (Clear QAM) filter did not work. I had over a hundred scrambled channels (black screen) and a few Clear QAM channels. The Clear QAM channels were there, but the channel numbering was incorrect. I didn't try to make any recordings.
I plan on retesting ATSC and QAM with more recent firmware, but I need to do some rewiring first. (Cable, ATSC, and satellite feeds are all in different rooms) So Far, I haven't seen anything in the firmware release notes that suggest that ATSC/QAM fixes have been made. It's unfortunate that the firmware developers are in Portugal with no source of ATSC or QAM signals.
DVB-C tuners may also work with US digital Cable. I think that the early Scientific digital cable Set Top Boxes were based on DVB-C. Can anybody verify this?