Boltek LD-250 - Manual (Page 22)

O P E R A T I O N
19
Noise
Noise signals can be either a signal that did not appear to be lightning, or a signal
for which the LD-250 could not determine a distance or direction.
Noise can come from high powered devices such as A/C units, refrigerators,
computers, fans, heaters, etc.
In mobile operation noise can come from inductive traffic sensors buried in the
roadway, noisy overhead power lines, or noisy electronic devices.
Receiver Range
LD-250 has a range of about three hundred miles. Occasionally, strong storms
farther than 300 miles away may be detected.
The receiver’s maximum range will be affected by antenna height. While you can
receive storms with the antenna at virtually any height, you will have maximum
range with antenna mounted at least 25 feet above ground.
Other factors that could affect range are metal objects located near the antenna.
Metal objects can block the radio waves from getting to the antenna, reducing the
range. A large steel shed or other metal object nearby could block lightning
signals, resulting in reduced range in that direction. Try to mount the antenna as
far as possible from large metal objects, preferably above the object.