Motorola PTP 400 Series 4945 4950 4955 4960 4965 4970 4975 4980 4985, Band Edge 4940 MHz, Band Edge 4990 MHz Available Frequency Settings (MHz)

5.3.2 RTTT Avoidance and Other Channel Use Restrictions

Where regulatory restrictions apply to certain channels these channels are barred. The user

should note that the number of channels barred is dependant on the channel raster selected.

For example see the effect of the UK RTTT channel restrictions in Figure 11. Barred channels

are indicated by a “No Entry” symbols displayed on the “Spectrum Management” web page,

see section 8.3.10 “Spectrum Management Control - With Operational Restrictions ”.

5732 57385744 5750 5756 5762 5768 5774 5780 5786 5 792 5798 5804 5810 5816 5822 5828 5834 5840

5734 5740 5746 5752 5758 5764 5770 5776 5782 5788 5794 5800 5806 5812 5818 5824 5830 5836 5842

5736 5742 5748 5754 5760 5766 5772 5778 5784 5790 5796 5802 5808 5814 5820 5826 5832 5838 5844

Default

UK RTTT Restricted Channels (Shaded)

5732 MHz

5734 MHz

5736 MHz

Lower Centre

Frequency

Band Edge

5850 MHz

Band Edge

5725 MHz

Figure 11 - 5.8 GHz UK RTTT Channel Avoidance

The current 4.9 GHz variant does not require the operator to adjust the lower center

frequency to achieve full band coverage. The channels are set as shown in

4945 4950 4955 4960 4965 4970 4975 4980 4985Band Edge4940 MHzBand Edge4990 MHzAvailable Frequency Settings (MHz)

Figure 12 - 4.9 GHz Spectrum Settings

5.4.1 Raster Considerations

The 4.9 GHz variant operates on a fixed 5 MHz channel raster that is set to odd center

frequencies. See Figure 12.

5.4.2 Fixed Frequency Operation

When operating in ‘Fixed Frequency’ mode (see section 8.3.5.3 “Wireless Configuration”) the

operator can set the operating frequency independently in both directions to any of the center

frequencies available in i-DFS mode.