Giga-tronics 2508B, Руководство по эксплуатации

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Ramp Operation Giga-tronics 2500B Series Microwave Signal Generators
Page 30 Operation Manual, Part Number 34737, Rev C, June 30, 2011
Ramp Menus
Submenu Parameter
Figure 12: Ramp Power Sweep Menu
Ramp Power
Sweep Menu
(see Figure 12)
This function sweeps the RF output power level linearly from a start power level to a
stop power level in a set duration, then repeats the sweep. The power level can sweep
from a lower to a higher power level, or in the reverse direction. The output frequency
is held constant during a power sweep. The maximum settable range for ramp power
sweep is 45 dB.
NOTE : As soon as the Ramp Power menu is chosen, the instrument calculates the ramp,
and then begins sweeping the output power. The ramp is recalculated whenever a
parameter is changed. During calculations, the following message is shown at the
bottom of the display:
PREPARING SWEEP DATA...
When the calculations are complete and the output is actively sweeping, the following
message is shown:
RAMP SWEEPING
Start Power This is the beginning power level of the power level sweep.
The range for the start power parameter is -20 dBm to +25 dBm if the step
attenuator option is not installed in the instrument.
If the step attenuator option is installed, the start power range is from 25 dB above
to 20 dB below the step attenuator setting.
Stop Power This is the ending power level of the sweep.
If the step attenuator option is installed, the stop power range is from 25 dB above
to 20 dB below the step attenuator setting chosen.
If the step attenuator option is not installed in the instrument, the range for the
stop power parameter is -20 dBm to +25 dBm.
Frequency This is the frequency that undergoes a power ramp. The range of
adjustment of this parameter is dependent on the model number of the instrument.
Sweep Time This is the amount of time that elapses for one cycle of a power level
sweep to complete.
Step size Power step size