Finding a signal @ 28.2 E
This is assuming that you are using good quality double screened cable type CT100 or similar, with no kinks or sharp bends. and a universal LNB .7db or better.
Finding a digital signal without a meter is a bit tricky (but you knew that didn't you!).
All satellites are in geostationary orbit at a fixed "height" above the Earth, in a ring around the equator, called the Clarke Belt. Seen from the surface this means they lie on an arc that touches the horizon at about 75deg West and 75 deg East (but this depends on your location). The elevation - the height above the horizon of satellites on that arc - depends on your location as well. The further away from the equator you live, the lower in the sky they all appear. If you lived on the equator, the highest point of the arc would be directly overhead.
Digital receivers typically take several seconds to lock onto any digital signal they are receiving. And reception is "all or nothing" (no gradual improvement in reception as you move steadily closer to the true sat position, as is the case with analogue). These are the factors which mean lining up on a digital signal is trickier. But it's no more complex - just requires more patience (namely, waiting several seconds at each spot for a picture or signal-bar on the meter before giving up and moving the dish a fraction to the side or up/down for your next attempt).
If you have your dish pointed at Astra 1 @ 19.2 Compass degrees east of true South then you need to move it 9 degrees to the east and three degrees down. Then get someone to watch the signal and quality levels on the system menu of the digibox and move the dish systematically 1 degree at a time back and forth and up and down. After each slight movement wait 10 seconds for the signal to lock. It is not difficult - but can be time consuming.
The quality is the most important, it is an inverse measure of the number of bad packets detected on the data stream and should be as high as possible. The signal level on the other hand does not matter as long as the quality is good.
The 9 and 3 degrees are approximate and depend on your own location in ,Europe i.e.where you are looking at the satellite from.
Here's a link to very useful programs, from which you can calculate your Azimuth & Elevation if you tell it your longitude and latitude
First, each transponder can be transmitting at a different signal strength. They can even be carried on separate beams, with different footprints.
Second, some transponders carry many channels, others fewer. Those carrying many, especially when they are not using the statistical multiplexing techniques, can sometimes be trying to transmit too much information at once. This will be particularly true of they are carrying multiple sports channels, where the screen content changes rapidly. When the combined rate of information required to be transmitted, exceeds the available bandwidth on a transponder, pixelation is the result. Even if the reception itself is perfect and even with the biggest dish in the world
If according to the footprint maps at-:
You should be OK if you have no obstructions. There is a difference between the footprints of the Astra 2A North and South beams and   Astra 2B is different again, weaker in Europe. Also the beam from Astra 2D (UK Beam) has a much tighter footprint, covering UK, Ireland and the coast of France see primary service area.
See also for channel allocation on 28.2 A-B-C, beam & transponder
In the Signal Test Menu (services-4-6)  you should see -:
Signal Strength            At Least 50%
Signal Quality   At Least 25% (more the better!)
Lock Indicator   OK      (you need quality to lock)
Network ID              0002
Transport Stream   07d4
Click on this link for European  RECEPTION REPORTS
For further useful information see Martin Pickering`s site
See also David Sullivans notes on reception of 28.2 E.
A wealth of useful satellite information can be found on Martin's site @
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