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Adjustment tips for the operating menu
̈ After you have entered the six characters of the name, press the save
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 trans-
mitter is switched off. It also suppresses sudden noise when there is no
longer sufficient transmitter power received by the receiver.
The squelch can be adjusted in 13 steps from 0 to 30 μV. 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.
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.
̈ Turn the jog dial 7 to change the squelch threshold.
The new setting becomes effective immediately.
̈ After you have adjusted the desired squelch threshold, press the save
button 8.
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 “Booster Feed On” in the “Booster” menu so that
the LEDs N and S light up;
if you do not connect antenna boosters or active antennas, select “Booster
Feed Off” in the “Booster” menu so that the LEDs N and S do not light up.
S
q
uel
5
0
Squelch
S
quelch
50
a
me
EL
Boost
e
30
If you adjust the squelch threshold to a high value, the transmis-
sion 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.
30
30 µV
300
30
µV
10
3
esc
save
sync
digital audio
processing
sync
DEV
M
H
z
777.005
U.01
BANK
CH
COM
AF
HD
P
8
7
uelch
Booster
AF O
+12
3
0
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.