LRAD
1950XL
GENASYS INC.
Manual Part No.:114931-00 rev. B
11
4.0 Principles of Operation
The LRAD
1950XL uses an array of high efficiency acoustic transducers to produce a focused
pattern of sound that can be aimed at a target for transmission of audible commands,
warnings,
and alert signals. The LRAD’s focusing effect produces a sound pattern that has its
highest intensity directly in front of the device in a ‘cone’ of approximately 30 degrees. Outside
of this 30 degree cone, the sound intensity drops dramatically. It is through this focusing of the
sound beam that the LRAD is able to broadcast clear and intelligible audible messages
thousands of meters.
The LRAD can broadcast audible content from the included MP3 Control Unit or from the
handheld microphone. Audio from these devices is processed and amplified by a number of
discrete class “D” digital am
plifiers and the amplified analog audio signal is reproduced by the
high efficiency, lightweight acoustic drivers in the LRAD’s Head Unit.
Rules of Engagement with the LRAD
1950XL will vary with each
end user’s
installation.
5.0 Operating Instructions
The following instructions offer a brief overview of the operation of the LRAD once it has been
mounted, connected, and powered up.
1. Operators of the LRAD must wear hearing protection with 20 to 33 dB of attenuation
when using the LRAD. The foam earplugs provided with the LRAD meet these
requirements.
WARNING!
AVOID PROLONGED EXPOSURE TO EXCESSIVE NOISE LEVELS.
TEMPORARY OR PERMANENT LOSS OR DEGRADATION OF HEARING CAN OCCUR.
HEARING PROTECTION IS REQUIRED WHEN OPERATING THE LRAD
.
2. Aim the LRAD at the desired target using either of the integrated sighting mechanisms
provided on the sides of the unit. Center the crosshairs in the rear hole of the sight to
ensure proper alignment of the LRAD to the target. Use the handles at the rear of the
LRAD to move the LRAD left/right or up/down to the desired position. Adjust the
friction by tightening/loosening the tilt lock knobs or the lock on the mount.
