R&S FSH
Field-Strength Measurement with Isotropic Antenna
1145.5973.12 4.143
E-14
Selecting the standard:
The R&S FSH offers a default channel power measurement setting for various standards. In addition,
you can define and store your own configuration.
Press the STANDARD softkey.
The R&S FSH will open the table with available
standards.
Select the standard you want by using the rotary
knob or the cursor keys.
Confirm your selection with the ENTER key or the
STANDARD softkey
The R&S FSH will set the selected standard. The
parameters for frequency span, resolution bandwidth,
video bandwidth, sweep time and detector will be set
to the optimum values for the standard.
If you select USER, the R&S FSH will restore the channel power measurement setting last used with
USER. It automatically incorporates changes in the settings so that they will also be available the next
time the USER standard is called.
When changing settings, keep the following in mind:
•
The span is always coupled with the channel bandwidth. If you change the bandwidth, the R&S FSH
will automatically set the corresponding span.
•
Select a resolution bandwidth that is between 1 % and 4 % of the channel bandwidth. This will
ensure that the channel power measurement will be performed with good selection in reference to
the adjacent channels.
•
Select a video bandwidth that is at least three times as wide as the resolution bandwidth. This will
keep the power measurement from being corrupted when signal peaks are compressed by the video
filter.
•
Use the RMS detector as the detector. This will ensure that the power and resultant field strength
will always be measured correctly regardless of the signal waveform to be measured.
•
Set a sweep time that yields a stable measurement result. If you increase the sweep time, the
R&S FSH will also increase the integration time for the RMS detector, which also yields more stable
measurement values.
深圳市盛腾仪器仪表有限公司
Tel:0755-83589391
Fax:0755-83539691
Website: www.Sengt.com
