Spectrum Management (Fixed Frequency); Figure 75 - Spectrum Management Fixed Frequency Screen - Motorola PTP 500 Series User Manual

7.9.10 Spectrum Management (Fixed Frequency)

The PTP 500 Series Bridge software allows a user to optionally fix transmit and receive
frequencies for a wireless link. Once configured, the spectrum management software will not
attempt to move the wireless link to a channel with lower co and adjacent channel
interference. Therefore this mode of operation is only recommended for deployments where
the installer has a good understanding the prevailing interference environment. (See Section
7.7.4 "Installation Wizard Step 2 - Wireless Configuration"). Care must also be taken to
ensure that the frequency allocations at each end of the link are compatible. To help the user
when identifying the mode of operation Spectrum Management uses two visual cues. See
Figure 75. The main page title identifies the mode of operation using the "Fixed Frequency
Mode" postfix and the selected channels are identified by a red capital 'F'.

Figure 75 - Spectrum Management Fixed Frequency Screen

Channel barring is disabled in fixed frequency mode; it is not required as dynamic channel
hopping is prohibited in this mode.
NOTE
These plots are for 15 MHz operation; 5 MHz and 10 MHz operation is similar - the
width of the vertical green bar represents the channel width.
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