The measurements for RF output power is
performed at both normal environmental conditions and at the extremes of the operating
temperature range declared by the manufacturer. The test results comply with the limits
shown in the Limits on RF Output Power - Non-FHSS Equipment 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 RF
Output power measurement is described in the following steps:
- Connect the EUT as shown in Figure 2-1.
- Spectrum Analyzer or Power meter can
be used as test equipment.
- For a detailed test procedure, see
the Conducted measurements clause of EN 300 328 [3].
- Switch ON the EUT and other test
equipment.
- Setup the test equipment to the
desired settings. If Spectrum Analyzer is used for this test then set the Spectrum
Analyzer to Burst power measurement and set the other parameters (Center Freq, Span,
Reference Level, Threshold Level, and so forth.).
- Use the Radio Testing Tool [9] to setup and configure the EUT. For setting and up configuring
the EUT, see the SimpleLink™ Wi-Fi® CC3x20, CC3x3x Radio Tool User
Guide [10].
- Open the Radio Testing Tool [9] and setup the link with the EUT by using Setup tab.
- Open the Tx tab and set the
transmission mode to “Packtized”.
- Configure the EUT to the desired
parameters such as Channel / Frequency, Data Rate, Data Pattern, Power Level, and so
forth.). For Duty Cycle configuration, set the Duty Cycle to 30% maximum for
accurate measurement. For more information, see Table 2-3 through Table 2-5.
- Click on “ Start Tx Testing”
- Observe the Tx signal on the test
equipment, measure the tx power and record the value (A in dBm).
- Add the antenna gain (G in dBi) and
an additional beamforming gain (Y in dB, if applicable).
- The resultant RF Output Power in
e.i.r.p. equal to (A+G+Y) from the above steps. Record this value.
- Repeat the above for other desired
channels and also repeat the test at extreme temperature conditions.
- The RF Output Power in e.i.r.p.
comply with the limits shown in the Limits on RF Output Power - Non-FHSS
Equipment table of CE Regulations for SRDs Operating in
License-Free 2.4 GHz/5 GHz Bands [1] for all the above test cases.