can i at least connect it with the tv1
No you cannot! ATSC transmitters cost Big Bucks. The only STB of any variety that I have ever heard of which can send out an ATSC signal was the Dish 6000, and it was a special case because it was essentially remodulating the MPEG-2 transport stream. All Dish HD programming is now mpeg-4, so that's a non-starter because the receiver would have to do real-time transcoding. Maybe for SD programs...
There are a couple of things you might want to do instead of feeding the 622 signal into your ATSC tuner stick.
1) Buy an NTSC (analog) or hybrid (NTSC/ATSC) tuner stick. NTSC-only tuner sticks are much cheaper than ATSC tuner sticks. K-world also makes a really really cheap DVD-copy baseband-video NTSC stick. I won't say "tuner stick" because it has none. However, your 622 has A/V outputs just like a DVD player, which would work.
2) Plug the 622 HDMI output directly into your computer monitor. Obviously this requires a monitor with an HDMI input
Maybe you have one already.
3) Buy a Slingbox or Hava "place shifting" box, and run the player on your PC. This has the advantage of allowing you to view your 622 anywhere you have a PC or laptop on the net, not just the PC local to your 622.
Since ATSC broadcasts are sent in the clear, any STB that puts out a valid signal would also have to be in the clear. Content providers have serious heartburn when sending their HD programming in the clear. So, because of DRM issues, I doubt we will ever see ATSC transmitters inside STBs. And before anybody asks, I have
no idea how broadcasters get away with this (sending HD programming in the clear). This is a good use of your K-world ATSC tuner stick. I have an earlier version of your model, a 340U, and I use it all I want to record gorgeous OTA HD broadcasts, edit out the commercials, etc., and view them again wherever I like.