- verifying the position
They do show the distances from the top and bottom of the feed to the top and bottom of the dish.
Pendragon's observation should get your LNBF located pretty accurately.
Here's an alternate way, or a trick to confirm the above is correct:
Put your inclinometer on the back of the dish, and set the dish rim vertical.
The inclinometer should read 90°.
Look in the specs, and find the offset of the dish.
Say it's 24° degrees (use the actual number, of course).
Pick a strong satellite that is very high in your sky.
Let's say the satellite elevation is 54°.
So, take 54° - 24° = 30°, and that is the angle to you tilt the dish back from vertical.
The inclinometer reads 90° now, so subtract the 30° tilt-back.
Aim the dish up into the sky 'till the inclinometer reads 60°.
Now, you move the LNBF up and down a little (and the dish side-to-side) to acquire the test satellite.
Once you've found your bird, you know the LNBf support arms are properly elevated.
You can write the offset angle on the back of the dish and use an inclinometer on your mount to set the elevation for other satellites.
Or, you can make up a custom elevation gauge like the dish had from the factory.
The simple thing would be to mount a small plate on the back of your dish at the proper angle, so your inclinometer reads elevation directly! -
Last step is to move the LNBf toward or away from the dish to peak the signal.
