27
Signal Generator
The indicator on the display screen will be changed from RF OFF into RF ON,
and the power of the RF OUTPUT connector is −20dBm.
5.
Use the up arrow key to progressively increase the output power by 1dB every
time.
The AMPLITUDE region displays 1.00dB, and the value is a value formed by
adding 1 dBm to the power −20dBm output by the hard function key and then
subtracting the reference power (−20dBm). At the moment, the power of the
RF OUTPUT connector is changed into −1dBm.
6.
Press the
Ampl Offset
soft function key, and input 10 dB.
It will input 10 dB of offset. The AMPLITUDE region displays 20.00dB, and the
value is a result formed by using the power (−10dBm) output by the hard
function key to subtract the reference power (−20dBm) and then adding the
offset (10dB). At the moment, the OFFS indicator is at an activated status, and
the power of the RF OUTPUT connector is still -1dBm.
2-2-2 Configure sweep RF output
The signal generator includes two sweep types: step sweep and list sweep.
This section explains the difference between step sweep and list sweep and learns
to use two methods to configure the RF output of the signal generator to sweep one
group of defined frequency and amplitude points. A step sweep will be built, and
then these points are used as basis for new list sweep.
2-2-2-1 Step sweep
After step sweep is activated, the signal generator will sweep RF output based on
RF output start and stop frequency and amplitude input values, equally stepped
sweep points, and dwell time quantity of each point. The RF output frequency,
amplitude or frequency and amplitude will be swept from the start
amplitude/frequency to the stop amplitude/frequency.
Step sweep provides a linear stage that runs through the start frequency to the stop
frequency and/or amplitude value. You can switch between upward sweep direction
Summary of Contents for Gratten GA1483
Page 1: ......
Page 57: ......
Page 60: ...48 5 2 AMPT...
Page 61: ...49 49 Signal Generator 5 3 FM...
Page 62: ...50 5 4 FREQ 5 5 LF OUT...
Page 63: ...51 51 Signal Generator 5 6 PULSE 5 7 RECALL...
Page 64: ...52 5 8 SAVE...
Page 65: ...53 53 Signal Generator 5 9 SWEEP...
Page 66: ...54 5 10 SYSTEM...
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