Operating Manual 6175.4760.02 – 01 2.25
M3SR Series 4100 Switching the Radio On
Switching On
For HF-Broadband system (HF-BB)
All system components has to be switched on at the same time (R&S GV4190 and all
R&S GX4100 and R&S VK4190).
By pressing 'ON/OFF' (1 and Figure 2.10) at the radio front panel the radio is switched on. If
a built-in control unit is installed, it will be switched on automatically, too.
The 'ON/OFF' button (5) at a built-in control unit does not switch the radio on (see
Figure 2.10).
After switching the radio on it takes a few seconds for the boot process to complete. When
the boot process has finished, the following LEDs at the radio front panel are illuminated to
indicate readiness for operation:
• Radio LED AC / DC (2, Figure 2.10) or LED BATT (3 and Figure 2.10): power available
• Radio LED GO (4, Figure 2.10): radio ok
Switching the radio on automatically also switches a built-in control unit on. After switching
on, the built-in control unit comes up with the Home menu (see sect. 3.3 Control and Moni-
toring of Radio and Control Unit) and the following LEDs at the built-in control unit are illumi-
nated:
• Control Unit LED ON (6): control unit is switched on
• Control Unit LED CU (7): control unit is fully operative
When the built-in control unit is connected to the radio, the control unit LED GO (8)
indicates that this radio is fully operative.
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