Aktakom ABM-4082 User Manual page 86

ABM-4082
:DB:REFerence <n>
Command Syntax:
:UNIT:VOLTage:AC:DB:REFerence <n>
Command Parameter:
<n> = 1e-7 to 1000
Query:
:DB:REFerence?
Description:
This command is used to specify the dB reference level. When DB units is selected, ACV dB
measurements are made using the specified dB reference impedance.
The reference level is specified in volts and is not range dependent. For example: a dB reference level
of 1 is 1V on all ACV measurement ranges.
:DBM:IMPedance <n>
Command Syntax:
:UNIT:VOLTage:AC:DBM:IMPedance <n>
Command parameter:
<n> = 1~9999
Query:
:DBM:IMPedance?
Description:
This command is used to specify the dBm reference impedance level. When dBm units is selected,
ACV dBm measurements are made using the specified dBm reference impedance.
The reference impedance is specified in ohms and is not range dependent. For Example: a dBm
reference level of 500 is 500 on all ACV measurement ranges. A rational number is rounded to the
nearest valid integer value.
:VOLTage[:DC] <name>
Command Syntax:
:UNIT:VOLTage:DC <name>
Command Parameter:
<name> = V
DB
DBM
Query:
86
Specify reference voltage
Query reference voltage
Specify reference impedance
Query reference impedance.
DC voltage measurement units
dB DC voltage measurement units
dBm DC voltage measurement units