HP 8153A - Page 167

units dBm or Watts. dBm are the units used if you do not
specify units.
The other type of reference is possible if you are using
two power sensors, one in each channel. Here the
quotient of the power readings for the two channels is
expressed relative to the reference level:
ResuliidB) =
Fir st.Channel Measured
SecondChannel Measured
{dB) — Reference{dB)
Where the Measured value includes any calibration factor.
You select this by using TOA (or 0) or TOB (or 1). You can
only use TOB (or 1) for channel A when there are two
sensor modules. You can only use TOA (or 0) for channel B
when there are two sensor modules. You enter the value
for the reference as a floating point number (NRf). You
can include the units (dB) in the command. dB are the
units used if you do not specify units.
Related Commands SENS :P0W: REF?, SENS :P0W: REF: STATE,
SENS;POW:REF:STATE?,SENS:PQW:REF:STATE:RATI,
SENS:POW:REF:STAT:RATI?,SENS:POW:REF:DISP
Example OUTPUT 722; "SENS:POW: REF TOREF, iODBM"
SENSe:POWer:REFerence?
Syntax SENSeli |21:POWer:REFerence?”
<wsp>T0A|TOB|TOREF|O|l|2
Response <value>
O.OOlpW < value < +9999.9mW
-200dBm < value < +200dBm
with TOREFor 2
-200dB< value < +200dB
with TOB (or 1) or TOA (or 0)
Description This command returns the reference level that is set for
the module. There are three possible references, you
Remote Operation - Commands 8-17