General Considerations; Spectrum Planning; Ptp 500 Series Bridge Variants - Motorola MOTOWI 4 User Manual

5 General Considerations

5.1 Spectrum Planning

The PTP 500 Series Bridge has four frequency variants in its product range.
Band Definition
5.4 GHz ETSI 5 GHz band B, USA UNII
Band
5.8 GHz USA ISM Band / ETSI 5 GHz
band C
Note: for 5.4 GHz and 5.8 GHz, use of the product is allowed according to local regulations.
There are two distinct approaches to spectrum planning:
First an operator can utilize the default spectrum management mode i-DFS (intelligent Dy-
namic Frequency Selection). This mode uses the PTP 500 Series Bridge ability to measure the
interference levels in all channels to build up a picture of the interference / noise levels in all
channels. The PTP 500 Series Bridge uses statistical techniques to select the most appropri-
ate transmit and receive channels. i-DFS can be influenced in its channel decision process by
selectively barring channels from use. The use of this functionality is described in detail in
Section 8.3.7
Second, when detailed control of the spectrum allocation is required, it is recommended that
the fixed frequency mode is used to statically allocate transmit and receive channels.
General Considerations
Table 5 PTP 500 Series Bridge Variants
"Spectrum Management".
Frequency Variable Channel
Coverage Width
5470-5725 MHz 15 MHz
5725-5850 MHz 15 MHz
34
Channel
Raster
5 MHz
5 MHz