Motorola PTP 500 User's Guide download pdf (Page 389)

100

101

PTP 300 and PTP 500 Series User Guide Managing spectrum

phn-1115_006v000

Sep 2010

7-29

The only controls available to the master are the Page Refresh Period and Interference

Threshold attributes. They will have no effect on the operation of the wireless link and

will only effect the generation of the channel spectrum graphics.

The active channel history menu is removed in this mode of operation, as channel

hopping is prohibited.

Spectrum management in radar avoidance mode

When the link is operating in radar avoidance mode, the Spectrum Management page

(Figure 7-12 and Figure 7-13

) contains the following additional information:

• The main page title has the ‘Radar Avoidance’ suffix.

• The only controls available to the master are the Interference Threshold

attribute. This has no effect on the operation of the wireless link and will only

affect the generation of the channel spectrum graphics.

• Extra color coding of the interference histogram is provided (Table 7-9).

When operating

with RTTT

(Road transport and Traffic Telematics) Avoidance enabled

or other regulatory restrictions on channel usage, the page contains the following

additional information:

• All channels marked with a ‘no entry’ symbol with their associated statistics

colored black are the prohibited channels. These channels are never used to host

the wireless link, but CAC measurements are still taken so that adjacent channel

biases can be calculated correctly and so the user can see if other equipment is

in use.

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