Setting The Measurement Speed; Enabling And Disabling High-Speed Mode - Keysight V3500A User Manual

2 Knowing your Instrument

Setting the measurement speed

In normal operation speed, the V3500A will complete a power measurement in
about 1 second (± 0.5 second depending on the power level of the input signal).
Lower level signals take longer to measure than higher level signals. This is due to
the fact that more filtering is required to get a good signal-to-noise ratio when
measuring low-level signals.
If faster measurements are required, set the V3500A to high-speed mode. In this
mode (for measurements greater than –30 dBm) the V3500A can make
approximately 23 measurements per second.
In most cases, the normal measurement speed is the best choice. Measurement
data filtering is greatly reduced in high-speed mode, resulting in significantly
higher measurement noise than in normal mode.

Enabling and disabling high-speed mode

The instrument returns to the default "Meas mode" setting of <Norm> when the
NOTE
instrument is turned off.
1 Press MENU to enter menu mode.
2 Scroll using the down menu arrow keypad until "Meas mode" menu is
3 Press the left or right menu arrow keypad to select the desired measurement
36
displayed.
speed mode. There are two available options:
– <Norm>: Selects normal measurement speed mode
– <Fast>: Selects high-speed mode
Keysight V3500A User's Guide