Resolution keeps changing

[miragemike]

Anyone tried the new Directv triple satellite (Triple LNB) for HD?

I have a Sony HD TV, Sony (SAT-HD100) Receiver, Directv Dish (Double LNB)
HBO & HDNET look good but signal is low in the 70's therefore the screen changes resolution all the time. Other channels signal is about 80. Can't seem to get a better signal. Dish is mounted on top of a triplex and still doesn't get a consistent high signal.

HD broadcasts flicks when scene change and then picture goes away, comes right back and the signal reads 1080i again.

Anyone know how to fix this?

[twonami]

Assuming it is securely mounted, the cables are sound, there are no structures and things like trees in the way I would borrow or buy a signal meter and tweak the dish. I noticed a significant improvement in my signal and picture by getting up there with the meter and working all three axis of my dish till I got the best reading possible, my signals are at worst 93%. If you are still having problems I would check cables then the LNBs.

[Don Conklin]

I have a RCA 3 LNB dish. I aimed the 3 LNB dish the same direction as the old 1 LNB dish. I got the regular Directv channels, but not the HD channels. I found that with azmuth, tilt and elevation, the obstruction was not directly in the direction of the azmuth. I cut down a tree directly in front of the dish that I thought was interfering with the signal. That did not help. I moved the dish and found it was a tree that was 30 degrees off azmuth. It was a factor of tilt that I did not expect. The lesson here is to make sure you have a wide clear area. I also found that most HDTV over the air signals are UHF so the UHF antenna is the most important to aim in the right direction.