Black Box LWN600CM-1 Guía de usuario descargar pdf (Pagina 27)

724-746-5500 | blackbox.com

Page 27

Chapter 2: Preparing for a WAN Deployment

On maximizing this display, you gain access to the following additional display parameters:

Band: You can choose which band you want to monitor in this display: 2.400-2.500 GHz, 5.150-5.350 GHz, 5.470-5.725 GHZ, or

5.725-5.850 GHz.

Channels: Choose one of the channel combinations in the drop-down list to display channel boundaries within the graph.

Center: Use this control to scroll the graph right or left. You can use this control in combination with the Span control to zoom in

on a specific area of the frequency domain.

Span: This control establishes the width of the viewable area, effectively zooming in on the center frequency. Use this control

with the Center control to zoom in on a specific area of the frequency domain.

Maximum: By default, the maximum is set to 100%. This means that when the trace reaches the top of the graph, it has a duty

cycle of 100%. You can use this control to set a lower maximum to gain resolution. When used with the Minimum control, you

can zoom in on a specific portion of the trace.

Minimum: By default, the minimum is set to 0%. This means that when the trace reaches the bottom of the graph, it has a duty

cycle of 0%. You can use this control to set a higher minimum to gain resolution. When used with the Maximum control, you can

zoom in on a specific portion of the trace.

Max Hold: By default, this check box is selected and SmartPath EMS VMA allows for 10 concurrent scans, and SmartPath EMS

Online displays the gray trace that indicates the maximum duty cycle reached during this data collection session. To turn off the

gray trace, clear the checkbox.

Swept Spectrogram: A swept spectrogram tracks the signal power over time. That is, it produces a color-coded sweep of

spectral information such that the admin can view the real-time FFT in terms of its historical values. The swept spectrogram—also

called a heat map—reports the frequency on the horizontal axis, the history (in sweeps) on the vertical axis, and the power

encoded as a set of colors. Blue indicates low power levels, whereas red indicates high power levels; the gradient of colors from

light blue, through green, yellow, and orange, indicates intermediate power levels.

On maximizing this display, you gain access to the following additional display parameters:

Band: You can choose which band you want to monitor in this display: 2.400-2.500 GHz, 5.150-5.350 GHz, 5.470-5.725 GHz, or

5.725-5.850 GHz.

Channels: Choose one of the channel combinations in the drop-down list to display channel boundaries within the graph.

Swept Spectrogram-FFT Duty Cycle: A swept spectrogram of the FFT duty cycle tracks the duty cycle over time. This spectro-

gram produces a color-coded sweep of duty cycle information with frequency on the horizontal axis, history (in sweeps) on the

vertical axis, and the duty cycle encoded as a set of colors. Blue colors indicate low duty cycle (the darkest blue is 0%), whereas

red colors indicate high duty cycles (the darkest red is 100%); the gradient of colors from light blue, through green, yellow, and

orange, indicates intermediate duty cycle values.

On maximizing this display, you gain access to the following additional display parameters:

Band: You can choose which band you want to monitor in this display: 2.400-2.500 GHz, 5.150-5.350 GHz, 5.470-5.725 GHz, or

5.725-5.850 GHz.

Channels: Choose one of the channel combinations in the drop-down list to display channel boundaries within the graph.

Both swept spectrograms together provide a useful view of how the RF environment behaves over time, which in turn provides

clues to uncovering problems, such as identifying intermittent interference sources.

Interference Reporting Area

The interference reporting area at the bottom of the pane displays any sources of RF interference that the spectrum analyzer can

identify. This area provides a summary of all interference sources for quick review. This area contains six columns to help identify

the affected channels and the approximate position of the interference.

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 191 192

Comentarios a estos manuales

Sin comentarios

Black Box LWN600CM-1 Guía de usuario Pagina 27

Comentarios a estos manuales