8
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.
SECTION 5
MAINTENANCE AND PROGRAMMING
A)
Maintenance
No maintenance is required to keep the transmitter in top operating condition. If
an external cleaning appears necessary, use a soft, damp cloth and mild soap
only.
B)
Frequency
programming
The transmitting frequency is user programmable via a set of 4 decimal rotary
switches (below the
FREQUENCY
digital readout) on the front panel (FM-800 &
FM-850).
1)
While the transmitter is off (Power switch is off), determine the frequency
of your choice and compose in a sequential fashion (from far left switch to
right), the number of your chosen FM frequency. Ex: 102.3 MHz: First
switch (far left) = 1, Second switch= 0, Third switch = 2 and Fourth
switch = 3. Basically, what you are doing is that you directly write the
frequency number in Mega Hertz.
Notice:
While it is possible to select and read an FM frequency below and
above the restricted frequency range (Ex: 80.1MHz or 195.9MHz), the system
will always validate the lowest or the highest permissible FM frequency instead.
The lowest being 87.9MHz and the highest being 107.9MHz.It is also
applicable for a selected even frequency (Ex: 88.2MHz), where the system will
validate the nearest odd frequency instead ( 88.3MHz).
CAUTION: Never perform a frequency programming while the unit is powered
(power switch on).