Motorola PTP 400 Series Manual De Usuario

 

 

118

8.3.8.7  Local and Peer Channel Spectrum Graphics

 

Spectrum Management presents its computed statistical measurements in a graphical display 

on both the master and slave DFS web page.  

 

The X-axis shows a stylized view of the selectable wireless channels. See section 5 “General 

Considerations” for further information. The display separates the display of channels to help 

the clarity of the resultant display. The axis is labeled using the channel center frequencies in 

MHz. 

The Y-axis shows the interference power levels from –100 to –40 dBm.  

The active channel (channel 1 in Figure 58) is always marked using hatched green and white 

lines. The width of the hatching is directly proportional to the spectral occupancy of the 

channel. 

The individual channel metrics are displayed using a colored bar, an ‘I’ bar and a peak 

symbol. The colored bar represents the following channel state: 

Green 

Active 

The channel is currently in use hosting the Point-to-Point 
wireless link 

Orange 

Interference 

The channel has interference above the interference 
threshold  

Blue 

Available 

The channel has an interference level below the interference 
threshold and is considered by the Spectrum Management 
algorithm suitable for hosting the Point-to-Point link 

Grey 

Barred 

The system administrator has barred this channel from use. 
Because the low signal levels encountered when a unit is 
powered up in a laboratory environment prior to installation 
(which makes the grey of the channel bar difficult to see). An 
additional red ‘lock’ symbol is used to indicate that a channel 
is barred. 

The top of the colored bar represents the 99.9% percentile metric for specific channel.