Nokia RH-6 Series Rf Description & Troubleshooting page 73

CCS Technical Documentation
The purpose of this alignment is to tune the carrier signal (at marker 2) and the +67kHz
signal (at marker 3) to a minimum level.
Use the variables 'TX I DC offset' and 'TX Q DC offset' to adjust the carrier signal to a
minimum level (marker 2). Tuning is possible by using arrow keys on the keyboard. Push-
ing the sliders by using the mouse is less sensitive but even possible.
After tuning to the minimum the level difference between marker 2 and the peak levels
at marker 1 must exceed 40dB.
The Spectrum Analyzer now shows a plot like this:
35
30
20
10
0
-10
-20
-30
-40
-50
-60
-65
Date:
Use the variables 'Amplitude difference' and 'Phase difference' to adjust the +67kHz sig-
nal to a minimum level (Marker 3). Tuning is possible by using the arrow keys on the key-
board. Pushing the sliders by using the mouse is less sensitive but even possible.
After tuning to the minimum the level difference between marker 3 and the peak level at
marker 1 must exceed 40dB.
Issue 1 10/2003
Company Confidential
Marker 3 [T1]
Ref Lvl Ref Lvl -15.03 dBm
35 dBm 35 dBm 1.88006771 GHz
27.5 dB Offset
1
Center 1.88 GHz
15.JAN.2002 10:57:06
Copyright © 2003 Nokia Corporation.
Company Confidential
7 - RF Description & Troubleshooting
RBW 3 kHz RF Att
VBW 3 kHz
SWT 3 s Unit
3 [T1] -15.03 dBm
1.88006771 GHz
1 [T1]
1.87993229 GHz
2 [T1] -23.51 dBm
1.88000000 GHz
3
2
30 kHz/ Span 300 kHz
RH-6
30 dB
dBm
A
25.16 dBm
1MA
Page 73