User Guide

NPL-3 Company confidential
Troubleshooting Instructions CCS Technical Documentation
Page 24 ãNokia Corporation. Issue 1 3/03
Figure 20: RX I&Q, phase difference 90 deg between signals.
Figure 20, “RX I&Q, phase difference 90 deg between signals.,” on page 24:
Detailed view of GSM850 continuous mode RX I and Q signals measured from testpoints
RXI and RXQ simultaneously.
Used channel 190, input signal 881.6671 MHz, level –90 dBm at antenna port, AGC set-
ting 12.
Phase difference should be 90 degrees between RX I and Q signals at all bands.