Startup of the CMU  CMU 
1100.4903.12 2.4  E-9 
Startup of the CMU 
This Chapter describes how to customize the CMU and perform simple RF measurements. As a pre-
requisite for starting the session, the instrument must be correctly set up and connected to the AC 
power supply as described in Chapter 1.  
 
 
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Step 1
 
! Switch on the CMU using the mains 
switch at the rear. 
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!  Check the operating mode of the instru-
ment at the ON/STANDBY key on the 
front panel. If the CMU is in standby 
mode, press the ON/STANDBY key. 
# 
Step 2
 
The CMU is booted and after a short while 
displays the startup menu. This menu is 
usually closed as soon as the instrument 
software is loaded and the startup test is 
finished. 
$ 
! Press the Wait hotkey to prevent the 
instrument from switching to another 
menu. 
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The Wait hotkey changes to Cont. with the 
additional message Change to last menu 
displayed on top.  
! 
Press the Cont. hotkey to resume the 
startup process.
 
 
   
 
Step 3 
 
RESET
 
! Press the RESET key to open the Reset 
popup menu.  
 
 
!  Proceed as described in Chapter 4, sec-
tion Reset of Instrument Settings, to ex-
pand the tree of function groups. 
!  Select the function groups Base and RF 
to be reset (the corresponding nodes 
must be black).  
!  Use the cursor keys to activate the Reset 
button and press ENTER.  
! In the popup window opened (Are you 
sure?), select Yes to confirm the instru-
ment reset. 
The CMU indicates that it performs a partial 
reset of the two selected function groups 
and is then ready to carry out the following 
steps. The Reset popup menu is closed 
automatically.