Clear-Com MS-702 - Manual (Page 10)

C l e a r - C o m ®
M S - 7 0 2 T w o - C h a n n e l M a i n S t a t i o n I n s t r u c t i o n M a n u a l
2 - 4
button will flash while the call button is pressed, indicating the presence
of a call signal on the line.
3. Tone Alert: An audible tone alert can be enabled to sound when a call
signal is received on either channel. This can be useful when the
operator's attention has been drawn away from the MS-702 indicator
panel. Press the tone alert button to alternately enable or disable the
audible tone alert. The button illuminates blue when the audible tone alert
is enabled. When enabled, the tone alert will sound when a call button on
a beltpack or station is pressed. The tone alert will not sound if a call
signal is originated at the MS-702 station. The level can be adjusted by
the control on the rear panel (See number 4 on the rear panel diagram
later in this chapter).
5. Listen Level Controls: Each channel has a separate listen level control.
Turn these controls to set the listen level you need on each channel. Turn
the control completely counterclockwise to silence a channel.
6. Sidetone Controls: Each channel has a sidetone null control. Sidetone is
the level of your own voice that you hear while talking on the intercom.
Setting a comfortable level of sidetone will ensure that the intercom line
sounds alive and also helps you modulate your voice relative to other
voices on the line.
Typically, different sidetone null settings are needed depending upon
whether you are using the gooseneck panel microphone along with the
speaker. Use one of the following procedures to correctly set the sidetone
level controls.
Sidetone Adjustment Procedure for Gooseneck Microphone with Speaker
turned on:
1. Turn off the party-line link (A+B) switch.
2. Turn the level control for channel B all the way down. Set the level
control for channel A to a comfortable level.
3. Press the channel A talk button and speak into the microphone while
turning the sidetone null control for channel A slowly back and forth.
There should be a point where your voice (and any accompanying
acoustic feedback) disappears. This is the null point.
4. Repeat this procedure for channel B by turning the channel A level
control down and adjusting the channel B controls.
Sidetone Adjustment Procedure for Headset:
1. Turn off the party-line link (A+B) switch.
2. Turn the level control for channel B all the way down. Set the level
control for channel A to a comfortable level by having someone talk
to you from another station.
3. Press the channel A talk button and speak into the microphone while
turning the sidetone null control for channel A slowly back and forth
until you hear your voice at a comfortable level in the headset.
4. Repeat this procedure for channel B by turning the channel A level
control down and adjusting the channel B controls.