The measurements for RF output power are
performed at both normal environmental conditions and at the extremes of the operating
temperature range declared by the manufacturer. The EUT is configured to the highest
sated transmit output power level and is tested on those channels and channel bandwidths
specified in the Limits on Nominal and Occupied Channel Bandwidth table in
CE
Regulations for SRDs Operating in License-Free 2.4 GHz/5 GHz Bands
[1]. The test results comply with the limits shown in Limits on RF
Output Power and Power Density at the Highest Power Level (PH) table
in 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.
- fFr detailed test procedure for
detailed test procedure, see clause 5.4.4.2.1 of EN 301 893 [4].
- Switch ON the EUT and other test
equipment.
- Setup the test equipment to the
desired settings. If the 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 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). Set the Duty Cycle to 30% maximum for accurate measurement. For the Duty
Cycle configuration, see Table 2-3.
- 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.
complies with the limits shown in the Limits on RF Output Power and Power Density
at the Highest Power Level (PH) table in CE Regulations for
SRDs Operating in License-Free 2.4 GHz/5 GHz Bands [1] for all the above test cases.