Spectrum Analyzer Mode
R&S
®
Cable Rider ZPH
209
User Manual 1321.0950.02 ─ 07
Start the measurement
1. Press the [MEAS] key.
2. Select the "Meas Mode" softkey.
The R&S Cable Rider ZPH opens a submenu to select the measurement mode.
3. Select the "Isotropic Antenna" menu item.
After you have turned on the isotropic antenna, the R&S Cable Rider ZPH uses the
isotropic antenna for all measurements.
Note:
When you turn on the isotropic antenna without selecting a transducer factor,
the R&S Cable Rider ZPH displays the file manager dialog to select a transducer
factor. When the isotropic antenna is turn off, the transducer factor is unloaded.
Using transducer factors
The isotropic antenna is like a transducer. It has a characteristic frequency response
and it is necessary to correct the measurement results by these characteristics.
The transducer factors (
*.isotrd
) for each of the supported isotropic antennas are
provided with the R&S Cable Rider ZPH. The factors contain typical correction values
for all three antenna elements and the correction values for the cable.
1. Press the [SCALE/AMPT] key.
2. Select the "Transducer" softkey.
3. Select the "Select Primary"menu item.
The R&S Cable Rider ZPH opens a file manager dialog box to select the trans-
ducer factor.
4. Select the transducer factor you need.
The R&S Cable Rider ZPH shows the name of the active transducer on the display
(e.g. "Pri Tran TSEMF-B2_typical" ).
If you are using the extension cable (R&S TS-EMFZ2, order number: 1166.5708.04) ,
you have to take this into account as a secondary transducer.
1. Press the [SCALE/AMPT] key.
2. Select the "Transducer" softkey.
3. Select the "Select Secondary" menu item.
The R&S Cable Rider ZPH opens a file manager dialog box to select the trans-
ducer factor with the unit dB.
4. Select the transducer factor for the extension cable.
The R&S Cable Rider ZPH shows the name of the active transducer on the display
(e.g. "Sec Tran TSEMFZ2" ).
For more information, see
Chapter 8.4, "Using Transducer Factors"
,
on page 249.
Performing Spectrum Measurements
