Step two. Finding TV-channels. “Exhaustive Search” can find more channels, but it takes much longer than the ordinary search.
Channels are spotted. You can set various parameters for each of them, like video, audio, teletext and so on.
You can leave most parameters by default for a while, but the video settings panel needs messing up with: somehow the card couldn’t recognize the broadcast standard automatically. It has to be set for each channel manually:
So, we set the TV-tuner up. We kept the screenshots for all twelve channels found by Sapphire The Beast All In Wonder 9700 PRO to evaluate the quality of received and decoded TV-signal.
Even the best screenshots show that there is a lot of noise in the signal: it is grainy. There are also tails tracking behind areas colored bright red. Worst screenshots have a lot of noise that kills the image altogether. It also turned out that once in a while the tuner loses the sync on a couple of channels and produces rudiments of frames colored most unexpected colors.
The high level of noise may be caused by pickup from other computer components as well as by certain flaws in the card’s PCB layout: the tuner stands next to a powerful graphics chip and memory chips clocked at the frequencies of the standard RADEON 9700 PRO card. It also may be that the high noise level is a peculiarity of this given card we had in our test lab. For example, ATI All-In-Wonder 9700 PRO, that was reading the TV-signal as NTSC or PAL, produced a black-and-white picture, but without much noise.