he [OP] got very flexible chair, what is capable to hold the dish in any position
so, just follow [professional] recommendation: imagine a box 10x10° around 101W position in a sky (use compass, protractor, tablet, smartphone), then start making filling the box by lines (as old CRT), slow while watching signal strength screen...
- I think I know "where" the satellites are (see image below).
- There are "obstructions", but from what I've read here, they are far enough out of the way for me not to be concerned about them.
- I've got a wall full of electronics that the signal has to go through before it reaches the receiver - never had this in the old days.
- In the old days, with a round dish, and the small inexpensive DirecTV compass, setting the azimuth was easy. With the new oval dish, which is tilted, I really don't know "where" it is aimed, which is why I tried to "sweep" the sky back and forth, and up and down.
- Sweeping right to left was easy - just rotate the chair and keep checking, while watching the signal strength meters on the TV.
- Sweeping up and down was very difficult - I could move the dish that way, but it was hard to do this in tiny increments.
I found a friend who had an old round disk still sitting in the yard behind his home. I seriously thought of getting that for testing, and then to activate the DVR. As I recall, aiming the old round dish was pretty easy.
Also, thanks to what the last technician left me with, I have a four foot round pole here. I could re-assemble the whole thing properly, and use that for the temporary alignment, but I can't think of any way to rigidly support the thing, without any chance of it toppling over and damaging something. I have an old, heavy-duty photography tripod, but I can't think of any way to use it supporting the post somehow.
I have an appointment this coming Thursday for the technician to install the non-penetrating "sled" mount that DTV uses. Based on the satellite view above, that "should" work. The dish will be in the same location as it used to be, but lower. The test photo of the sky shown above was taken with the camera at the height I expect to have the dish at.
I suspect what is going on, is that with the dish "tilted", I have no good way to align the azimuth accurately. I just don't know enough. If I had a post I could use, I think with the advice you guys have given me, I should be able to do this.