How Do I Make a Fast Device Tune Measurement?
Last updated: December 20, 2006
Before performing this measurement, ensure that the test set has been properly calibrated (see
Calibrating the Test Set
).
Measuring Fast Device Tune
This measurement is only available in
IS-2000 Test Operating Mode
.
-
Set the test set's receiver and generator control to manual mode:
-
Set
RF Gen Freq Ctrl
(
F12
on
Call Parms 1 of 4
) to
Manual
.
-
Set
Rcvr Power Control
(
F8
on
Call Parms 3 of 4
) to
Manual
(it is not necessary to set the
Manual Power
setting; it is not used by the measurement).
-
Select
Meas Frequency
(
F10
on
call Parms 3 of 4
) and press the front panel
OFF
(
MANUAL
) key (the particular frequency displayed is not used by the measurement).
-
Press the
Measurement selection
key.
-
Select the
Fast Device Tune
measurement.
-
Select
Fast Device Tune Setup
(
F1
) and set the measurement parameters as needed. Select
Close Menu
(
F6
).
-
Select
Fast Device Tune MS TX/RX Parms
(
F2
), and configure the parameters as needed. Select
Close Menu
(
F6
) and
Return
(
F6
).
-
Place your mobile into a test mode that causes it to transmit continuously at >20 dB below the power level of the first step in the MS TX Power Sequence.
-
Press the
START SINGLE
key to initiate (arm) the measurement.
-
Wait 2 seconds.
-
Order your mobile to begin transmission of its MS TX Frequency/Power Series (the mobile should then increase its output power by more than 20 dB to reach the first step in the series, which triggers the measurement with an RF rise).
Do not send any GPIB commands to the test set or press any front panel keys until the measurement has completed.
-
Select
Graph Control
(
F3
). Set the axis control parameters as needed. Select
Return
(
F6
).
-
Select
Marker
(
F2
) to turn on the marker on the graphical display.
A typical result is shown below:
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