Agilent Technologies EPM-P Series Programming Manual page 201

Measurement Commands
READ[1]|2|3|4[:SCALar][:POWer:AC]:RATio:RELative? [<expected_value>[,<resolution>[,<source
list>]]]
Item
resolution
source list
1. The mnemonic
parameter used in the command sub-systems. The parameters must be entered in
the specified order. If parameters are omitted, they will default from the right. The
parameter DEFault is used as a place holder. Specifying
value unchanged.
2. When the measurement result is linear this parameter represents the number of
significant digits. When the measurement result is logarithmic 1 to 4 represents a
resolution of 1, 0.1, 0.01 and 0.001 respectively.
3. E4417A only.
Example
READ:RAT:REL?
2-54
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Description/Default
A numeric value for the resolution.
If it is unspecified the current
resolution setting is used. If a
value is entered it should
correspond to the current
resolution setting otherwise an
error occurs.
This channel list specifies the
channels used to calculate the
ratio.
If unspecified and the current
window setup is a ratio
measurement then this ratio setup
is used, otherwise it defaults to
channel A/B (E4417A) or A/A
(E4416A).
DEF means DEFault. This is not equivalent to the DEFault
EPM-P Series Power Meters Programming Guide
Range of Values
2
1 to 4
1.0, 0.1, 0.01, 0.001
1
DEF
3
(@1),(@2)
3
(@2),(@1)
(@1),(@1)
3
(@2),(@2)
leaves the parameter
DEF
This command queries the
relative ratio measurement on
the upper window.