Overview Of Measurement Procedure In Test Mode; Example Procedure; Related Topics - Agilent Technologies 8960 10 Series Reference Manual

RACH Measurement Description

Overview of Measurement Procedure in Test Mode

1. Set operating mode to Test.
2. Set the test function to either BCH, or, BCH + TCH.
3. Set the Broadcast Channel to the channel you wish to use.
4. Using your proprietary commands, initiate the mobile to generate a sequence of RACH bursts on the BCH.
5. Start the appropriate measurement.

Example Procedure

The following procedure details how to make a power versus time RACH measurement manually while in
Active Cell mode.
1. Press
SHIFT PRESET
2. Press the key which is positioned immediately below
More
3. Press and set the Receiver Control to Manual.
F7
4. Press and change the Manual Channel from 30 to 20. (This sets it to the same channel as the Broadcast
F9
Chan on screen 1 of 4.)
5. Press
Measurement selection
6. Select Power vs Time.
7. Press , Power vs Time Setup.
F1
8. Press , Measurement Setup.
F1
9. Set Trigger Arm to Single.
10.Press
START SINGLE
originating a call. This is to ensure that it is the RACH burst that is measured.)
11.Connect the mobile, then originate a call from the mobile.
12.Immediately you press send on the mobile the power versus time measurement result is displayed. You can
confirm that the measurement has occurred on the RACH by examining the measurement results. With a
RACH measurement, since the burst is shorter than normal, the power drops of rapidly after 331 µs. To
examine the results select
2 and , Numeric 2 of 2.
F3
13.To do further measurements on the TCH ensure that the Receiver Control is returned to Auto.

Related Topics

*******************************************************
"Programming a RACH Measurement" on page 99
"RACH Troubleshooting" on page 102
*******************************************************
98
S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\meas_rach_desc.fm
. The "Call Setup Screen" is displayed.
. (This key is positioned below the display.)
on the front panel of the test set. (Note, you are starting the measurement before
, Return to PvT Control,
F6
two times. This displays screen 3 of 4.
F12
, Change View, then select
F2
, Numeric 1 of
F2