5
D) Location of the transmitter
DECADE transmitters are designed for indoor or outdoor use in a dry environment, in
temperatures ranging from -50 to 50 C. In order to obtain optimum performances, it
is recommended to place them far from any electromagnetic noise source
(transformers, motors, etc.).
SECTION 3
OPERATION
A) Controls and indicators
The Input level is controlled by an associated potentiometer, located on the front
panel. A power indicator and an over modulation led are also located on the front
panel of the LX-75 series
B) Input and output connectors
The LX-75 series are offered in five different audio configurations, so inputs type may
vary from one model to the other. Please refer to section 1-B (page 2).The LX-75
series RF output signal is either routed to a fixed telescopic or an SO-239 (UHF female
type) connector that enables the transmitter’s RF output to be linked to a remote FM
antenna (Decade model # GP-32 or LGP-FM) that is optional. The use of a remote
antenna usually produces a better coverage when compared to the fixed telescopic
antenna.
C) Optimal input level
Optimal input level is reached when the OVER modulation indicator remains off at all
time. Adjust the input level control to meet that condition. To obtain this result it is
mandatory to compress the audio input signal (between your audio source output and
the inputs of the transmitter inputs. The over modulation LED on the front panel shall
never or rarely lit up. The level has to be adjusted in a manner to avoid over
modulation.
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