34 S-Series Oscilloscopes Service Guide
3 Testing Performance
 
Analog Bandwidth—Maximum Frequency Test
t
Ensure that the input voltage to the oscilloscope never exceeds ±5 V.
The oscilloscope must be warmed up (with the oscilloscope application running) for at least 
30 minutes at ambient temperature prior to the start of any performance test. 
Specifications
Analog Bandwidth (-3 dB)
DSO/MSOS804A 8 GHz
DSO/MSOS604A 6 GHz
DSO/MSOS404A 4 GHz
DSO/MSOS254A 2.5 GHz
DSO/MSOS204A 2 GHz
DSO/MSOS104A 1 GHz
DSO/MSOS054A 500 MHz
Equipment Required
Description Critical specifications Recommended model/ 
part number
Microwave CW 
Generator
Maximum Frequency ≥ 14 GHz 
Power range: -20 dBm to +16 dBm into 50 Ω  
Output resistance = 50 Ω
E8257D with Opt 520
Power Sensor Cable N1912-61020
Power Splitter 2 Resistor Power Splitter (f) 
Max Frequency ≥18 GHz
11667B
Power Meter Keysight P-series with power sensor 
compatibility
N1912A
Power Sensor Maximum Frequency ≥ 14 GHz 
Power range: -24 dBm to +16 dBm
E4413A
Coaxial Cable 50 Ω Characteristic Impedance  
3.5 mm (m) to 3.5 mm (m) SMA connectors 
Max Frequency ≥ 8 GHz
8120-4948
N-Type to SMA 
Adapter
N-type to 3.5 mm (m) SMA 1250-1750
SMA to BNC Adapter SMA (m) to Precision BNC (No Substitute) 1250-1200