Quanta Computer HFSWM100, Отчет испытаний ЭМИ

Страница: 31 / 71

ETC Report No. : ET90S-11-032 Sheet 27 of 104 Sheets
FCC ID. : HFSWM100
Rev. No 1.0
8 OUTPUT POWER MEASUREMENT
8.1 Standard Applicable
For direct sequence system, according to 15.247(b), the maximum peak output power of the
transmitter shall not exceed 1 Watt. If transmitting antennas of directional gain greater than
6 dBi are used, the power shall be reduced by the amount in dB that the directional gain of
the antenna exceeds 6 dBi.
8.2 Measurement Procedure
1. Check the calibration of the measuring instrument using either an internal calibrator or a
known signal from an external generator.
2. Position the EUT as shown in figure 5. Turn on the EUT and connect its antenna terminal
to measurement instrument via a low loss cable. Then set it to any one measured
frequency within its operating range and make sure the instrument is operated in its linear
range.
3. Set RBW of spectrum analyzer to 2 MHz and VBW to 3 MHz.
4. Measure the highest amplitude appearing on spectral display and record the level to
calculate result data.
5. Repeat above procedures until all frequencies measured were complete.
Figure 5: Output power and measurement configuration.
EUT
Spectrum
Analyzer
8.3 Measurement Equipment
Equipment Manufacturer Model No. Next Cal. Due
Plotter Hewlett-Packard 7440A N/A
Spectrum Analyzer Hewlett-Packard 8564EC 09/10/2002