SFG-2000 Series User Manual 
14 
Main display 
 (7 segment) 
Shows the waveform frequency, 
counter frequency, and duty cycle. 
 
 
For SFG-2100 series only. In the 
counter mode, indicates that the 
leftmost digit (100MHz) is hidden 
but contains a real number. For 
counter details, see page
40. 
 
 
For SFG-2100 series only. In 
counter mode, indicates gate 
selection. For counter details, see 
page
40. 
 
TTL
 
Indicates that the TTL or CMOS 
output is enabled. For TTL/CMOS 
details, see page
31. 
 
 
For square waveform only. 
Indicates that the duty cycle is 
being edited. For square waveform 
details, see page
25. 
 
 
Indicates that the waveform output 
is attenuated by −20dB. For 
attenuation details, see page
29. 
 
 
For SFG-2100 series only. Indicates 
that the sweep mode is activated. 
For sweep details, see page
35. 
 
   
For SFG-2100 series only. Indicates 
that FM or AM mode is enabled. 
For modulation details, see page
37 
(AM) or page
38(FM). 
 
 
For SFG-2100 series only. Indicates 
that the counter mode is enabled. 
For counter details, see page
40. 
 
EXT
 
For SFG-2100 series only. Indicates 
that the external modulation input 
is used. For details, see page
37 
(AM) or page
39(FM). 
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