Operations Manual

Page 4 RF Technology R50
1 OPERATING INSTRUCTIONS
1 Operating Instructions
1.1 Front
Panel
Controls
1.1.1 MON. Volume
The Mon. Volume control is used to adjust the volume of the internal loudspeaker and
any external speaker connected to the test socket. It does not effect the level of the 600
Ohm line or direct audio output.
1.1.2 MON.SQ
The MON. SQ. switch allows the normal squelch functions controlling the monitor
output to be disabled. When the switch is in the MON. SQ. position the audio at the
monitor speaker is controlled by the noise detector. The CTCSS, carrier and external
squelch functions are disabled. This can be useful when you are trying to trace the
source of on channel interference or when setting the noise squelch threshold. The
audio from the 600 Ohm line and direct outputs is not effected by the switch position.
1.1.3 N.SQ
The N.SQ trimpot is used to set the noise squelch sensitivity. Use the following
procedure to set the noise squelch to maximum sensitivity.
(a) Set the toggle switch to the MON.SQ. position and set the MON VOLUME control
to 9 o'clock.
(b) Turn the N.SQ. adjustment counter clockwise until the squelch opens and noise is
heard from the speaker. Adjust the VOLUME to a comfortable listening level.
WARNING
Changes or modifications not expressly approved by
RF Technology could void your authority to operate
this equipment. Specifications may vary from those
given in this document in accordance with
requirements of local authorities. RF Technology
equipment is subject to continual improvement and
RF Technology reserves the right to change
performance and specification without further notice.