Sennheiser EM 3731-II - 09-09 Instruction Manual page 33

Adjustment tips for the operating menu
50
30
EL
ame Squelch Squelch
300
µV
µV
30 30
10
3
7 8
save
DEV
777.005 M
H
z
sync
U.01 BANK
AF COM
esc
CH
30
uelch Booster
32
Repeat the last two steps to enter the remaining characters.
After you have entered the six characters of the name, press the
button 8.
The name is stored. The display changes to the selection mode of the
operating menu.
In order that the name is displayed on the status display, you may have to
change the status display (see "Selecting the status display" on page 38).
Adjusting the squelch threshold
Both receivers are equipped with a squelch that can be adjusted via the
"Squelch" menu. The squelch eliminates annoying noise when the
50
transmitter is switched off. It also suppresses sudden noise when there is
no longer sufficient transmitter power received by the receiver.
Booste Squel
The squelch can be adjusted in 13 steps from 0 to 30 V. Selecting a
smaller value reduces the squelch threshold, selecting a higher value
increases the squelch threshold. Adjust the squelch threshold – with the
transmitter switched off – to the lowest possible value that suppresses
hissing noise.
If you adjust the squelch threshold to a high value, the
transmission range will be reduced. Therefore, always adjust the
squelch threshold to the lowest possible setting.
If you adjust the squelch threshold to "0", the squelch is switched
off. If no RF signal is being received, hissing noise will occur. This
setting is for test purposes only.
To adjust the squelch threshold:
Before adjusting the squelch threshold to a different setting, set the
volume on a connected amplifier to the minimum.
Change to the setting mode of the "Squelch" menu.
The current setting starts flashing.
30
Turn the jog dial
The new setting becomes effective immediately.
digital audio After you have adjusted the desired squelch threshold, press the
processing
button 8.
sync
The squelch threshold is stored. The display changes to the selection
mode of the operating menu.
Switching the booster supply voltage on/off
If you connect antenna boosters (e.g. AB 3700) or active antennas (e.g.
A 3700, AD 3700), select
N S
the LEDs and
+12
active antennas, select
AF O
N S
the LEDs and
The booster supply voltage is short-circuit proof.
If you connect active antennas or antenna boosters, the current
consumption of the overall device is increased.
If the booster supply voltage is switched on, it remains switched on
even when the receiver is switched off or muted.
7
to change the squelch threshold.
"Booster Feed On" in the "Booster" menu so that
light up; if you do not connect antenna boosters or
"Booster Feed Off" in the "Booster" menu so that
do not light up.
save
save