Pvt Troubleshooting; Possible Setup Issues - Agilent Technologies 8960 10 Series Reference Manual

PVT Troubleshooting

June 29, 1999

Possible Setup Issues

During remote operation of the Power vs. Time measurement the user should configure the trigger arm to
single, see "SETup:PVTime:CONTinuous" on page
Failure to set trigger arm to single may result in the measurement never giving a result. When trigger arm is
continuous the measurement rearms itself and starts another measurement cycle, during remote operation
the fetch query may not be synchronized to the measurement cycle, see
If the Trigger Source is set to RF Rise and the signal measured is not burst modulated the measurement will
wait until aborted or timed out.
If the input signal does not rise above the threshold set at 20 to 30 dB below the Expected Power, see
"Expected Power" on page 520
may hang.
The PvT Transmit Power measurement results are shifted in proportion to the value of Amplitude Offset that
a user may set. The following table shows the measurements that are affected and how amplitude offset
affects them. For more information about amplitude offset commands, see
Configuration" on page
Table 7. Measurements affected by amplitude offset
Amplitude Offset Command
OUTPUT 714;"SYSTEM:CORRECTION:SGAIN -3"
!Offset for 3 dB of loss in the network.
OUTPUT 714;"SYSTEM:CORRECTION:SGAIN 3"
!Offset for 3 dB of gain in the network.
OUTPUT 714;"SYSTEM:CORRECTION:SGAIN 0"
!Zero dB of offset.
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
there is not enough power to generate an RF Rise trigger so the measurement
563.
427.
PVT Transmit Power (dB)
Minimum Maximum
7.123 7.152
7.129 7.16
7.112 7.147
S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\ts_pvt.fm
"Measurement States" on page
"Measurement Related
Cell Power
Average
7.136 -82
7.14 -88
7.124 -85
PVT Troubleshooting
150.
Setting
(dBm)
95