User`s guide

144 Chapter 3
Screen Reference
SIGNAL GENERATOR
Screen Fields
The following input fields of the test parameters need to be set to generate RF
signal from the Test Set. The parameters can be set using the CURSOR
CONTROL knob as explained in "Front Panel Overview" on page 52.
Input Field Description
Radio Standard
Selects either GSM900, E-GSM, DCS1800, or PCS1900.
If Radio Standard is changed, Channel is also automatically
changed accordingly.
Channel
a
a. The variable increment softkey is activated. Refer to "Variable Incre-
ment Softkey" on page 60.
Specifies the transmitting traffic channel. The frequency
corresponding to the channel accompanies. The allowable range is
as follows:
GSM900: 1 to 124
E-GSM: 0 to 124, and 975 to 1023
DCS1800: 512 to 885
PCS1900: 512 to 810
Level
a
Sets the RF output level. The allowable range is from −110.0 to
−50.0 dBm in 0.5 dB steps.
RF Output
Toggles the RF power output between On and Off. When Off is
selected, the RF output level from the RF IN/OUT connector is
below −110 dBm.
Modulation
Selects one of the following modulation modes:
o Off: Outputs carrier wave without modulation.
o PN9: Outputs RF signal modulated with a 9-step
Pseudo-random binary sequence noise.
o All 0: Outputs RF signal modulated with all-zero data.
DC Power
a
Selects a supply mode. The choices are On and Off as follows:
o On: Always supplies dc voltage to the mobile.
o Off: Disables the dc voltage supply to the mobile.
Accepts a dc voltage value ranging from 3.0 to 11.0 V in 0.1 V
steps. This value is used among the AUTOMATIC TEST,
MANUAL TEST, SPECTRUM MONITOR, and SIGNAL
GENERATOR modes in common.