Operating instructions

Page 4 RF Technology R350/R500
1 OPERATING INSTRUCTIONS
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.
1 Operating Instructions
1.1 Front Panel Controls and Indicators
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
600Ω line or direct audio output.
1.1.2 Mon. SQ.
The Mon. Sq. switch allows all squelch functions controlling the monitor output to be
disabled. This can be useful when you are trying to trace the source of on-channel
interference.
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.
1. Turn the adjustment counter clockwise until the squelch opens as indicated by
the SQ LED.
2. In the absence of any on channel signal, turn the screw clockwise until the SQ
LED goes off. Then turn the screw one additional turn in the clockwise
direction.