The measurements for the Transmitter
unwanted emission in the out-of-band are performed at normal environmental conditions
only. The measurement is performed at the lowest and the highest channel on which the
equipment can operate. The test results comply with the limits shown in the Limits on
Transmitter Unwanted Emissions in Out-of-Band (OOB) Domain - Non-FHSS table of
CE
Regulations for SRDs Operating in License-Free 2.4 GHz/5 GHz Bands
[1] and are recorded in the test report. The test procedure for
Transmitter unwanted emission in out-of-band measurement is described in the following
steps:
- Connect the EUT as shown in Figure 2-1.
- Use Spectrum Analyzer as test
equipment.
- For detailed test procedure, see
clause 5.4.8.2.1 of EN 300 328 [3].
- Switch ON the EUT and other test
equipment.
- Set the Spectrum Analyzer to the
following settings:
- Measurement Mode: Time
Domain
- Center Frequency: 2484
MHz
- Frequency Span: Zero
Span
- Reference Level: 30dBm
- RBW: 1 MHz
- VBW: 3 MHz
- Filter Mode: Channel
Filter
- Detector: RMS
- Sweep Mode: Single Sweep
- Sweep Points: Sweep Time [μs]
/ (1 μs) with a maximum of 30000
- Trigger Mode: Video
- Sweep Time: >120% of the
duration of the longest burst
- Use the Radio Testing Tool [9] to setup and configure the EUT. For setting and up configuring
the EUT, see the Radio Testing Tool User's Guide [10].
- Open the Radio Testing Tool [9] and setup the link with the EUT by using the Setup tab.
- Open the Tx tab and set the
transmission mode to “Continuous”.
- Configure the EUT to the desired
parameters such as Channel/Frequency, Data Rate, Data Pattern, Power Level, and so
forth).
- Click on “ Start Tx Testing”.
- Measure the unwanted emission levels
as per the procedure described in the clause 5.4.8.2.1 of EN 300 328 [3].
- Repeat the above for other data
rates/modulations and also other desired channels.
- The Unwanted Emission levels in the
OOB domain comply with the limits shown in the Limits on Transmitter Unwanted
Emissions in Out-of-Band (OOB) Domain - Non-FHSS table of CE
Regulations for SRDs Operating in License-Free 2.4 GHz/5 GHz
Bands [1] for all the test cases.