Setting Up the Signal Generator

Setting Up the Signal Generator
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"Using the RF OUT Loss field"
You can set up the signal generator while in the Spectrum Analyzer mode from the Setup menu. For more detailed information on the signal generator setup and operation, refer to"Using the Signal Generator"

CAUTION: The maximum power for the RF In (Port 1) and RF Out/SWR (Port 2) ports is +20 dBm (100 mW). When using the 8481A/8482A Power Sensors, the maximum input power applied to the Power Sensor is +24 dBm (300 mW). When using the 8481D Power Sensor, the maximum input power is +20 dBm (100 mW). When directly coupled to a base station (BTS) or Access Network (AN), the test set can be damaged by excessive power applied to any of these three ports.

To prevent damage in most situations when you directly couple the test set to a base station, use the high power attenuator between the test set and the BTS.

NOTE: The lowest level the signal generator can go to is -95 dBm. In order to get a lower level, you must use an external attenuator. You can compensate for the attenuator in the RF Out Loss.

Step
Notes

1
[Setup]

2
[Sig Gen]

3
[Freq/Chan]

4
Enter the channel or frequency using the numeric keypad.

5

For channel select [Rev] or [Fwd]
For frequency select [GHz], [MHz], [kHz], or [Hz],

6
[Mod Format]

7
Select the channel standard from the list using the up and down arrow buttons.

8
[Select]

9
Set the RF output amplitude

[Amplitude]
Enter the amplitude value using the numeric keypad.
[dBm].
You may also enter a new value for amplitude by turning the rotary knob until the desired value is displayed or using the up and down arrow keys.

10
If you have previously stored RF Out Loss from an insertion loss measurement, go to the next step.

Or

Press [RF OUT Loss] to select On and enter the RF Out Loss value.
For information on the effects of the RF Out Loss function on the amplitude, refer to "Using the RF OUT Loss field' below.
Each time you press this softkey, the selected option changes.

11
Connect to the access network.

12
On [Enable Sig Gen] select On.
Each time you press this softkey, the selected option changes.

NOTE: The characteristics of any 1xEV-DO signal generated are:

RRI Active: RRI Bits: 1
DRC Channel Relative Gain: +3 dB
ACK Channel relative Gain: 0 dB
Data Channel Relative Gain: +3.75 dB
Data Channel: Active
Data Channel Data Rate: 9.6 kbps
Data Channel bit stream: PN15
I Mask: 3FF80000000
Q Mask: 3FF00000001
Filter Type: IS 95 Std


	Step	Notes
1	[Setup]
2	[Sig Gen]
3	[Freq/Chan]
4	Enter the channel or frequency using the numeric keypad.
5	For channel select [Rev] or [Fwd] For frequency select [GHz], [MHz], [kHz], or [Hz],
6	[Mod Format]
7	Select the channel standard from the list using the up and down arrow buttons.
8	[Select]
9	Set the RF output amplitude [Amplitude] Enter the amplitude value using the numeric keypad. [dBm].	You may also enter a new value for amplitude by turning the rotary knob until the desired value is displayed or using the up and down arrow keys.
10	If you have previously stored RF Out Loss from an insertion loss measurement, go to the next step. Or Press [RF OUT Loss] to select On and enter the RF Out Loss value.	For information on the effects of the RF Out Loss function on the amplitude, refer to "Using the RF OUT Loss field' below. Each time you press this softkey, the selected option changes.
11	Connect to the access network.
12	On [Enable Sig Gen] select On.	Each time you press this softkey, the selected option changes.