Using a satellite signal finder / meter is simple. We call these SF-95 signal meters an in-line meter. Why? Because as you can see in the diagram above, the meter is in the coaxial line between the satellite receiver and the dish / LNB. The signal meter get's power from the satellite receiver, the same power that is used to give power to the LNBF in order for it to operate.
You want to turn down the knob (counter-clockwise) on the front of the meter so that the signal indicating needle is balanced between 1 & 2. Then start adjusting your dish until you get the signal locked in from the correct satellite. Once you get the signal locked, the meter will buzz (tone) and go to 10. Then turn down the knob some more so the needle goes back to 1 & 2 and adjust your dish slowly until you get more signal indication. Keep repeating this step as needed until your satellite dish if fully peaked at the highest possible signal.