3.3.3 Mode Selection and Control
This section describes the various modes of operation available with the PPM, with the exception of the
sub-mode functions of the Graph Mode. These are described in Section 3.3.5.
Commands or functions that affect a specific mode of operation are either given or referred to in the
following command listings. It should be kept in mind that it is sometimes possible to combine modes,
therefore care must be taken to observe the rules and arguments set forth.
Select Log or Linear Power Measurement Format Commands
DBMW dBm measurement format display and GPIB output.
WATT Linear measurement format (mW) display and GPIB output.
Typical Program Line:
OUTPUT 704;WATT
Select Measurement Mode Commands
(Except Graph and Ratio Modes)
CW Power Commands
CWPA CW power, channel A
CWPB CW power, channel B
CWAB CW power, channels A & B
A CW related command is:
AVCWnnn
Select number of averages n for CW power measurements. Higher numbers reduce noise effects and
stabilize readings at low power levels.
(n = number between 1 and 999)
Peak Power Commands
The Peak Power Mode must be used very carefully. Power measurements in this mode depend on the
occurrence of a trigger, and the positioning of the cursor on the pulse to be measured. For more
information, refer to Selecting Peak Power Operation in Section 3.2.5.
To enter the Peak Power Mode use:
PKPA Peak Mode for Channel A only
PKPB Peak Mode for Channel B only
PKAB Peak Mode for Channels A & B
Remote Operation
Manual No. 20790, Rev C, November 1998
3-21
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