Anrtisu Cell Master MT8212B, Руководство пользователя, Страница: 186 / 294

Chapter 7
Power Monitor Mode
(Option 5)
Introduction
The Cell Master MT8212B with Option 5 installed can be used for making power measure-
ments with broadband RF detectors, such as the 10 MHz to 20 GHz Anritsu 560-7N50B.
See the table of available RF detectors on page 1-5. The power monitor displays the mea-
sured power results in dBm or Watts
Power Measurement
Required Equipment
·
Cell Master MT8212B with Option 5
·
Broadband RF detector, Anritsu P/N 560-7N50B
·
30 dB, 50 Watt, bi-directional, DC –18 GHz, N(m) – N(f), Attenuator, 42N50A-30
Procedure
Step 1. Press the ON/OFF key on the Cell Master.
Step 2. Press the MODE key.
Step 3. Use the Up/Down arrow key to select the
Power Monitor
mode and press
ENTER .
NOTE: If the detector is not installed, the Cell Master will display an error mes-
sage. If the detector is installed and the error message appears, check the con-
nections between the detector cable and the Cell Master connector. If the error
message persists, contact the nearest Anritsu Service Center.
Zeroing the Power Monitor
Step 4. With no power applied to the DUT, press the
Zero
soft key. Wait for a few sec-
onds while the Cell Master accumulates data samples of the quiescent power.
When complete,
Zero Adj: On
is displayed in the message area.
Zeroing subtracts the measured system noise. If the system noise is at -60 dBm
and zeroing is applied, 1 nW will be subtracted from the measurement.
Measuring High Input Power Levels
Step 5. Insert an attenuator between the DUT and the RF detector to protect the Cell
Master so that the input power level is less than or equal to 20 dBm.
Step 6. Press the
Offset dB
soft key.
Step 7. Enter the attenuation in dB using the keypad. Press the ENTER key to complete
the entry. The message area will show
Relative: On
along with the entered value
in dB.
7-1