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RBW=4KHz
Set up the RBW (Resolution Band Width):
Press the RBW key.
Rotate the dial knob to select the desired RBW.
Press the MHz key to validate.
The RBW should be chosen as appropriate for different monitoring requirements.
As the SR2000A employs modern DSP/FFT techniques, there is no difference
in screen update speed regardless of which RBW has been selected. However,
selection of RBW may affect displayed signal strength.
When a signal is displayed which is much wider in bandwidth than the currently
selected RBW filter (for example, WFM or digital transmissions), there will be
some inaccuracy in the signal strength displayed. This is because the wider signal
will lose some of its energy after passing through a narrower RBW filter.
6-1-9 Waterfall display function
The SR2000A is equipped with a waterfall function which can display the variation of signal
strengths in conjunction with the time lapsed (as sweeps progress). Sixteen different
colors are employed dependent on signal strength, in the shape of waterfall.
Press the FUNC key, then press the ATT key to start the waterfall display. To exit the
waterfall display, repeat above steps or press the CLR key.
Note that this function can be used in the VFO mode, memory read mode, and WSP modes.
RBW=128KHz
WATERFALL
DISPLAY
20
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