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Code Domain Power Measurement on 3GPP FDD Signals
R&S FSH
1145.5973.12 4.150
E-14
To demodulate the 3GPP signal, you must know the scrambling code (primary/secondary) of the base
station. The scrambling code is either manually entered or automatically determined by the R&S FSH.
Manual entry of the primary scrambling code:
Press the SCRAMB CODE softkey.
Select the PRIMARY SC… menu item by using the
rotary knob or the cursor keys.
Confirm selection with the ENTER key or the
SCRAMB CODE softkey.
The R&S FSH opens the entry window for the primary
scrambling code. The code is entered in decimal
format.
Enter the primary scrambling code of the base
station by using the numeric keys and terminate the
entry with the ENTER key or SCRAMB CODE
softkey.
Manual entry of the secondary scrambling code:
Press the SCRAMB CODE softkey.
Select the SECONDARY SC… menu item by using
the rotary knob or cursor keys.
Confirm selection with the ENTER key SCRAMB
CODE.
The R&S
FSH opens the entry window for the
secondary scrambling code. The code is entered in
decimal format.
Enter the secondary scrambling code of the base
station by using the numeric keys and terminate the
entry with the ENTER key or SCRAMB CODE
softkey. In most cases, you have to enter the value
“0” for the secondary scrambling code.
After correct entry of the scrambling codes, frequency
and reference level as well as correct selection of the
antenna diversity (see below), the R&S
FSH
synchronizes to the 3GPP signal of the base station.
SYNC OK is displayed on the screen and the
measurement values are indicated.
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