M3SR Series 4100 Control Unit Maintenance
3.100 Operating Manual 6175.4760.02 – 01
Table 3.26 Softkeys in Menu CU MTC 1/4 (4001)
Softkey Description Possible Values
Navigate to the previous menu (Home menu).
The level of user access (user levels 0 to 2 are available) 
can be selected, allowing the user to perform the functions 
he is authorized to use. For further details see 
sect. 3.6 User Level.
Navigate to the Control Unit Keyboard Test menu (see 
”Control Unit Keyboard Test (4031)” on p. 3.110).
Defines the time after which the channel is automatically 
recalled. For further details see sect. 3.7.3.2 Recalling 
Settings.
OFF
0.3 s
0.5 s
1 s
3 s
5 s
10 s
Toggle between Smart Frequency Editor (SFE) On and 
Off.
With SFE switched to ON, it is possible in HFM, FF and 
SDV (with the FF SCAN inactive) to edit the frequency with 
the knob at the operational menu, as long as no list box or 
editor is opened. With the key
the operator can select which frequency to edit: RX, TX or 
simultaneously RX/TX. With the keys
the operator can select which decimal position to edit. A 
blue line under the RX frequency and/or over the TX fre-
quency show the operator the selected frequency and dec-
imal position that can be edit with the knob.