Setting the CDMA Transmitter Reference Level

Setting the CDMA Transmitter Reference Level
You can set the CDMA transmitter reference level to display either relative power (dB) or absolute power (dBm). The test set defaults to relative. The top graticule (horizontal line) represents the total power in the CDMA channel. The scale per division is set to 5 dB per division by default, but you can change it if you wish.
If the reference level is set to relative, the reference level is relative to the total power (in dB) in the CDMA channel. If the reference level is set to absolute, the reference level displays the actual power (in dBm) in the CDMA channel.
To Set the CDMA Transmitter Reference Level:

Step
Notes

1
[Level/Location]

2
On [Reference] select Abs or Rel.
Each time you press this softkey, the selected option changes.

3
[RF IN Loss]

4
Enter the RF In Loss using the numeric keypad.
If you are using a cable and attenuator connected to the base station power amplifier, enter the combined cable and attenuator RF In Loss here. The RF In Loss can be obtained by measuring the Insertion loss. See "Two Port Insertion Loss".
Note: If data had been previously entered in [RF IN Loss], that data will be lost and replaced by the value you enter here.

5
[dB]

NOTE: The insertion loss of the test cable and high power attenuator must be accounted for to obtain accurate CDMA power measurements such as channel power and pilot power. The insertion loss of the test cable/attenuator combination are accounted for as the RF In Loss, which is an offset applied to the power measurements by the test set.


	Step	Notes
1	[Level/Location]
2	On [Reference] select Abs or Rel.	Each time you press this softkey, the selected option changes.
3	[RF IN Loss]
4	Enter the RF In Loss using the numeric keypad.	If you are using a cable and attenuator connected to the base station power amplifier, enter the combined cable and attenuator RF In Loss here. The RF In Loss can be obtained by measuring the Insertion loss. See "Two Port Insertion Loss". Note: If data had been previously entered in [RF IN Loss], that data will be lost and replaced by the value you enter here.
5	[dB]