Setting the Scrambling Codes

Setting the Scrambling Codes
The E7495A/B has two ways to identify the scrambling code being used by the transmitter under analysis: an automatic detection mode, Auto, and a manually-specified mode, Manual.

In Auto mode, the test set automatically detects the scrambling code present in the signal.
In Manual mode, you enter the scrambling code instead of it being auto-detected by the instrument.
If the scrambling code is known, its value can be entered and the test set can decode and display the code domain power of the signal, even if no P-SCH and S-SCH are present (a CPICH must be present, however). In normal operating conditions, these sync channels are available, so the P-SCH and S-SCH are used by the E7495A/B (and W-CDMA or W-CDMA (with HSDPA) mobiles) to determine the correct sequence of scrambling codes required to demodulate the DPCH channels.

Step
Notes

1
[Freq/Chan/Time Ref]

2
[Scramble C...]

3
[Auto] or [Manual]
Each time you press this softkey, the selected option changes.
In Manual mode, you can enter a number using the keypad.


	Step	Notes
1	[Freq/Chan/Time Ref]
2	[Scramble C...]
3	[Auto] or [Manual]	Each time you press this softkey, the selected option changes. In Manual mode, you can enter a number using the keypad.