16 UNIT Subsystem
728 N1911A/1912A P-Series Power Meters Programming Guide
UNIT Subsystem
The UNIT command subsystem:
– Sets power measurement units to dBm or Watts.
– Sets measurement ratio units to dB or % (linear).
Both UNIT commands have a numeric suffix which determines which window/
measurement is set:
Figure 16-1 Measurement Display UNIT Block Window
The following commands are described in this section:
The UNIT:POWer and UNIT:POWer:RATio commands are coupled as follows:
–If UNIT:POWer is set to dBm then UNIT:POWer:RATio is dB.
–If UNIT:POWer is set to W then UNIT:POWer:RATio is %.
upper window/upper measurement
UNIT1
upper window/lower measurement
UNIT3
lower window/upper measurement
UNIT2
lower window/lower measurement
UNIT4
Keyword Parameter Form Notes Page
UNIT[1]|2|3|4
:POWer
<a
mplitude unit
>
page 729:RATio <ratio_unit> [non-SCPI] page 731
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