Motorola MotoWI4 PTP 600 Series - Manual (Page 178)

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Antenna Gain: Gain of the antenna you are connecting to the unit, see Table 21.
Cable Loss: Loss in the cable between the ODU and the antenna. Note: In the event that
there is a significant difference in length of the antenna cables for the two antenna ports, then
the average value should be entered.
Spectrum Management Control: Is used to configure the 600 Series bridge Spectrum
Management features, see section 8.3.7 for more details. iDFS is the abbreviation for
intelligent Dynamic Frequency Selection, which continually monitors the 5.8 GHz spectrum
looking for the channel with the lowest level of on channel and co-channel interference. Fixed
frequency mode allows the installer to fix the transmit and receive frequencies on the units.
The frequencies may be configured symmetrically or asymmetrically.