DrP, on Sep 14 2007, 07:11 AM, said:
I have to save that my (comparatively) ancient technotrend PCI cards (Philips tin can style tuner, Philips demod and Philips bridge) are superior to anything else that I have tried, including most standalone STBs in terms of signal level and quality. In conditions that have other PC receivers (and standalones) glitching and spluttering, the ancient technotrends soldier on with little or no errors at all. When I was bothering with FTA I regularly had the TTs dump > 12 hours straight (Rage, ABC TV) without a single bad packet while other receivers had quite a few - that's saying something!
What have I compared against? Better to ask what I haven't compared against.

For a few examples the TTs perform better than the original + later model Twinhan PCI card, Airstar, Nebulas of different varieties, Tiny USB(2).
I don't have any old TechnoTrend cards anymore (I did have a Grundig+LSI based one but sold it when the driver support dropped off) but I do use the Hauppauge Nova-t PCI which replaced them (Conexant controller, Conexant demod, Thomson tuner). I have tried many cards since buying them (both PCI and USB, single tuner and dual tuner) and none come close to the reliability of the reception. DVB Viewer keeps a discontinuity count for recordings, and recordings made by the Nova-t PCI are almost always perfect - zero discontinuities.
For several months I struggled away with a popular dual tuner card, and suffered signal dropout, both when traffic passed by the house and at seemingly completely random intervals. When we had the aerial replaced and the dropout continued, I noticed that a set top box running at the same time worked perfectly. It was then that I went back to twin Nova-t PCI and everything has been great since.
Interestingly, the reason I looked at dual-tuner cards originally was to reduce power consumption of my PC, and looking at how they're made up (silicon tuner, USB-based chipsets) I thought that they would. In reality, the two Nova-t PCI consumed 10W total (i.e. 5W each) whereas a single Nova-t 500 consumed 12W for just one card. I thought that silicon tuners were supposed to be lower power, plus Hauppauge are using the low-power variant of the VT6212 but yet it manages to consume more power than two cards. OK, it's not a huge difference (negligable in fact) but it suprised me.
I was more suprised by the tuner performance though. After all the hype about MT2060 and DiBcom demods, I expected better performance than an "old-school" Thomson tuner can and Conexant CX22702 demod. But I found the opposite to be true. Sure, it can't do an ultra-fast blind scan. Nor can it lock channels near-instantly, but when it is locked, it delivers unlike the newer solutions (my own personal experience of course - obviously a lot of people have no issues).
The only "card" which comes close to the Nova-t PCI (at least with my setup) is the Nova-t USB2 - and I mean the one with the Panasonic ENV57H12 can tuner, not the newer "stick" with the MT2060 silicon tuner. I'm not saying that all can tuners are good - I found the Nebula DigiTV PCI to be rather poor and susceptible to interference (although it had awesome signal stats reporting) but they do seem to be better overall. HOWEVER... I think that a lot of issues with silicon tuners are people feeding too much signal into them. If I attenuate the input into the various MT2060 and XC3028 based cards/sticks I have, they perform a lot better, but they do still seem to have more issues than the Nova-t PCI. I wonder though if some of it is due to drivers rather than a hardware flaw?
Edited by CX23882-19, 18 September 2007 - 07:38 AM.