¸FSH3 ¸FSH6
Transmission measurements (only with ¸FSH3 models .13, .23 and ¸FSH6 model .26)
Frequency range 5 MHz to 3 GHz 5 MHz to 6 GHz
Dynamic range 
  10 MHz to 2.2 GHz
 
  2.2 GHz to 3 GHz
 
  3 GHz to 5 GHz
 
  5 GHz to 6 GHz
 
scalar mode
vector mode,  
option ¸FSH-K2
scalar mode
vector mode,  
option R&S FSH-K2
scalar mode
vector mode,  
option ¸FSH-K2
scalar mode
vector mode,  
option ¸FSH-K2
 
typ. 60 dB
 
typ. 80 dB
typ. 50 dB
 
typ. 65 dB 
– 
 
– 
– 
 
–
 
typ. 80 dB
 
typ. 90 dB
typ. 70 dB
 
typ. 85 dB
typ. 40 dB
 
typ. 55 dB
typ. 35 dB
 
typ. 50 dB
Reflection measurements  
(only with ¸FSH3 model .13 or .23, ¸FSH6 model .26 and ¸FSH-Z2)
Frequency range 10 MHz to 3 GHz 10 MHz to 3 GHz
Display range of return loss 10, 20, 50, 100 dB, selectable
VSWR display range 1 to 2, 1 to 6, , 1 to 10 , 1 to 20 selectable 
with option ¸FSH-K2 also 1 to 1.2 and 1 to 1.5
Reflection factor (r) display range
0 to 1, 0 to 0.1, 0 to 0.01, 0 to 0.001
milliRHO (mr) display range
0 to 1000, 0 to 100, 0 to 10, 0 to 1
Measurement uncertainty see diagrams
Measurement uncertainty with vector measurements
(option ¸FSH-K2)
Measurement uncertainty with scalar measurements
19Handheld Spectrum Analyzer ¸FSH