13000-00162 13-1
September 2005
Chapter 13. OFDM Setup and Measurement
Setting up the Power Meter for Continuous OFDM
Measurements
Follow the procedure below to set up the ML248xA / ML249xA to perform measurements
on continuous OFDM signals. For framed signals use the procedure outlined for the
WLAN signals and use frame arming for triggering.
This set up uses a dithered sample rate.
Note: The “OFDM Continuous” option in the [Preset] dialog can also be used to
automatically configure the unit for OFDM measurement. Press the Preset hard key and
then use the arrow keys to select option 14.
1. Perform calibration.
Connect the sensor in use to the input on the front panel.
Connect the RF port of the sensor to the “Calibrator” input on the front panel.
Press the Cal/Zero hard key followed by the Zero & Cal soft key.
Press the Zero & Cal Sensor soft key for the input in use. The sensor is now
calibrated and a message displays on the screen when calibration is complete.
Remove the sensor from the “Calibrator” input when complete.
Press the Sensor hard key followed by the Cal Factor soft key to display the [Cal
Factor] dialog.
Use the soft keys to select Frequency at the “Source” item, and then enter the
required frequency after selecting the “Frequency” item. Correction data is read
from the EEPROM in the sensor and applied automatically to the measurement
based on the input frequency.
2. Set up the channel.
Press the Channel hard key followed by the Setup soft key to display the [Channel
Set Up] dialog. The settings required in this dialog are detailed below.
Item Required setting
Mode: Pulsed/Modulated
Measurement: Select the type of measurement to be made on the data.
Refer to the explanation in chapter 5 of this manual in the
section titled “Selecting the Type of Measurement to be
Made”.
Meas display: Readout
To Next Page
Loading...
Need help?
General
