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Step 3. Press the MODE key.
Step 4. Use the Up/Down arrow key to select the Spectrum Analyzer mode and press
ENTER.
Step 5. Select the appropriate reference level, input attenuation level, resolution band
-
width, and video bandwidth.
Step 6. Press the
MEAS key.
Step 7. Once in the MEAS menu, press the
ACP soft key.
Step 8. Select the center frequency by pressing the
CENTER FREQ soft key and enter
the desired center frequency.
Step 9. Select the main channel bandwidth by pressing the
MAIN CHANNEL BW soft
key and enter the desired main channel bandwidth. For an IS-95 signal enter
1.23 MHz.
Step 10. Select the adjacent channel bandwidth by pressing the
ADJ CHANNEL BW soft
key and enter the desired adjacent channel bandwidth. For an IS-95 signal enter
30 kHz.
Step 11. Select the channel spacing by pressing the
CHANNEL SPACING soft key and
enter the desired channel spacing. For an IS-95 signal, enter 885 or 1.98 MHz.
Step 12. Make the measurement by pressing the
MEASURE soft key. The Site Master
will display the measurement results in the display area.
The table below provides typical settings for measuring a CW and a IS-95 CDMA signal.
5-5
Chapter 5 Spectrum Analyzer Measurements
CW Wave IS-95 CDMA Signal
Reference Level –15 dBm –10 dBm
Input Attenuation Level Auto Auto
Resolution Bandwidth Auto 10 kHz
Video Bandwidth Auto 30 kHz
Table 5-2. ACPR Measurement Settings