Why does the meter whistle and indicate a signal even when the dish is pointing at the ground?
The meter is very sensitive and can not tell the difference between a true satellite signal and background noise reflected from the ground and surrounding walls. In addition, if the LNB is not connected properly, the meter will register “noise” from the cable. Turn the sensitivity control down until the meter stops whistling with the dish facing downwards. Then move the dish to locate the required satellite. Please note that the meter has a needle scale indicator – NOT a digital numbers display and NOT an LED bar graph display. I mention this because people keep asking. In fact some people ask “how can it measure a digital signal if it doesn’t have a digit display?” This is rather like asking “how can you measure a piece of wood with a metal rule?” Another question is “why can I hear the tone even when it’s switched off?” This is a confusion between the audible tone which the meter makes when the signal is strong and the ultrasonic (inaudible) 22 kHz “tone” that a receiver (and more ex
