3.4    BASIC OPERATIONS 
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3.4.4    Tune 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There are automatic tuning mode and manual tuning mode.    In the automatic tuning mode, transmission and 
receiving frequencies are tuned and adjusted automatically.    In the manual tuning mode, tuning is carried out 
using the dial on the operation panel.    The currently selected mode is indicated on the tune mode button 
(software button  ռ  located at the bottom left corner of the radar display described in Section 2.3.2). 
 
 
Using the automatic tuning mode 
 
  Procedure    1  Move the cursor to the Tune mode button (software button 
  located at 
the bottom left corner of the radar display described in Section 2.3.2) 
and press the [ENT] key. 
 
Automatic tuning mode is activated, and    AUTO    is displayed on the Tune mode button. 
The equipment carries out tuning automatically.    Tuning is adjusted when transmission 
starts, the observation range is changed, or when the pulse width is changed.    Tuning 
takes only a few seconds. 
 
 
Using the manual tuning mode 
 
  Procedure    1  Move the cursor to the Tune mode button (software button 
  located at 
the bottom left corner of the radar display described in Section 2.3.2), 
press the [ENT] key, and set the mode to the manual tuning mode. 
 
Automatic tuning mode is cancelled, and MAN is displayed on the Tune mode button. 
 
2  Turn the [MULTI] dial to set the dial mode to    (Tune) . 
 
The multi-dial mode button (վ
  located at the bottom left corner of the radar display 
described in Section 2.3.2) shows    (Tune) . 
 
3  Turn the [MULTI] dial to adjust tuning. 
 
Turn the dial until the tuning state gauge (չ  located at the top left corner of the radar 
display described in Section 2.3.1) reaches maximum. 
 
Always use the automatic tuning mode. 
Use  the  manual  tuning  mode  only  when  the  automatic 
tuning mode does not provide the best tuning state due 
to deterioration of magnetron for example.
 
Caution