Sennheiser EM500 Instruction Manual page 36

The squelch should only be switched off for servicing purposes. With the
squelch threshold set to "5 dB", you switch the squelch off by turning the
jog dial to the left and keeping it in this position for 3 seconds.
Display
20
10
RF
20
10
RF
If you have accidentally switched off the squelch:
Turn the jog dial to the right to switch the squelch on.
Scanning for, releasing and selecting frequency presets
Menu
Squelch
Menu item
Easy Setup
Frequency Preset
Scan New List Automatically scans for unused receiving frequencies
Name
AF Out
Equalizer
Auto Lock
Advanced
Exit
Reset List
Current List
If you call up the
unused frequency presets. After the scan, the receiver displays a list of the
frequency banks and their unused channels. The frequency bank with the
largest number of unused channels is automatically selected.
Squelch is ...
... switched on
PEAK Menu
40 0
Exit
-10
30
The dotted line displays the squelch
Squelch
-20
20
-30
Easy Setup
10 threshold.
-40
9dB
RF AF
... switched off.
PEAK Menu
40 0
Exit
-10
30
The dotted line goes off and the audio level
Squelch
-20
20
-30
Easy Setup
10
display "AF" shows full deflection (hissing
-40
Off
RF AF
noise).
Function of the menu item
(frequency preset scan).
If receiving frequencies are used, they will be locked;
if receiving frequencies are unused, they will be released.
After the frequency preset scan, you can select an
unused frequency preset.
Releases all locked frequency presets
Selects an unused frequency preset
"Scan New
Adjustment tips and functions
List" menu item, your receiver scans for
35