HP 53181A Programming Manual page 207

Commands Reference
:INPut[1] Subsystem
:INPut[1]:FILTer[:LPASs]:FREQuency?
Queries the cutoff frequency of the low-pass filter.
• Numeric data transferred as ASCII bytes in <NR3> format with six significant
Query Response
digits.
• A value of 100E+3 is returned.
Comments
Units are Hertz.
:INPut[1]:IMPedance <numeric_value> [OHM]
Sets or queries the input impedance (50Ω or 1MΩ ).
<numeric_value> 50 or 1E6
Range
Query Response
Numeric data transferred as ASCII bytes in <NR3> format with six significant
digits.
• *RST: 1E6 OHM
Comments
• Units are Ohms.
Related
50Ω /1MΩ
Front-Panel
Keys
4-49