Setting Offsets; Channel Offsets; Display Offsets - HP E4418B Programming Manual

Setting Offsets

Channel Offsets

The power meter can be configured to compensate for signal loss or gain in
your test setup (for example, to compensate for the loss of a 10 dB
attenuator). You use the SENSe command subsystem to configure the
power meter. Gain and loss correction are a coupled system. This means
that a gain set by [SENSe[1]]|SENSe2:CORRection:GAIN2 is
represented in the [SENSe[1]]|SENSe2:CORRection:LOSS2?
command. If you enter an offset value the state is automatically enabled.
However it can be enabled and disabled using either the
[SENSe[1]]|SENSe2:CORRection:GAIN2:STATe or
[SENSe[1]]|SENSe2:CORRection:LOSS2:STATe commands.
LOSS2 is coupled to GAIN2 by the equation
unit is linear, and
Note

Display Offsets

Display offset values can be entered using the
CALCulate[1|2]:GAIN[:MAGNitude] command.
CALCulate[1|2]:GAIN:STATe must be set to ON to enable the offset
value. If you enter an offset value the state is automatically enabled. On
the HP E4419B this offset is applied after any math calculations (refer to
Figure 1-9 on page 1-70).
HP E4418B/E4419B Programming Guide
Gain
=
You can only use LOSS2 and GAIN2 for external losses and gains.
LOSS1 and GAIN1 are specifically for calibration factors.
Power Meter Remote Operation
Loss
when the default is logarithmic.
Loss
–
Setting Offsets
1
when the default
= ------------ -
Gain
1-51