Digital Standard PHS SMIQ
1125.5555.03 E-92.124
POWER RAMP
CONTROL...
Opens a window for setting the envelope control, especially for the rising and
falling ramp at the beginning and end of a slot.
FREQ
100. 000 000 0
MHz
FREQUENCY
LEVEL
ANALOG MOD
VECTOR MOD
DIGITAL MOD
DIGITAL STD
LF OUTPUT
SWEEP
LIST
MEM SEQ
UTILITIES
PHS
PHS
IS-95
NADC
PDC
GSM
STATE
MODULATION...
TRIGGER MODE...
EXECUTE TRIGGER
TRIGGER....
CLOCK...
POWER RAMP CONTROL...
SLOT ATTENUATION
SET DEFAULT
RAMP TIME
1.0 Symb
RAMP FUNCTION LIN COS
RAMP DELAY -0.1 Symb
RISE OFFSET 0 Symb
FALL OFFSET 0 Symb
LEVEL
-30.0
dBm
PEP
-27.5
dBm
SYNC
DN
12 3
Fig. 2-73 Menu DIGITAL STD - PHS - POWER RAMP CONTROL... , SMIQ equipped with
Modulation Coder SMIQB20 and Data Generator SMIQB11
(POWER RAMP
CONTROL...)
SET DEFAULT
Resets the subsequent parameters to the factory-set
values.
IEC/IEEE-bus
:SOUR:PHS:PRAM:PRES
RAMP TIME
Input value for the rise and fall time of the envelope
at the beginning or end of a slot. The time is set in
units of symbol period.
IEC/IEEE-bus
:SOUR:PHS:PRAM:TIME 0.25
RAMP FUNCTION
Selection of shape of rising and falling ramp for
envelope control.
LIN Linear ramp function.
COS Cosine function. A more favourable
spectrum than that of the LIN function is
obtained.
IEC/IEEE-bus
:SOUR:PHS:PRAM:SHAP LIN
RAMP DELAY
Input value for a shift of the envelope characteristic
to the modulated signal. A positive value causes a
delay of the envelope. The values are set in the units
of the symbol length.
IEC/IEEE-bus
:SOUR:PHS:PRAM:DEL 0.1
RISE OFFSET
Input value for a positive or negative offset of the
rising ramp of the envelope at the beginning of a slot.
IEC/IEEE-bus
:SOUR:PHS:PRAM:ROFF -1
FALL OFFSET
Input value for a positive or negative offset of the
falling ramp of the envelope at the end of a slot.
IEC/IEEE-bus
:SOUR:PHS:PRAM:FOFF 1
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