Installation Guide

Hardware Installation Guide Radio Site Planning
02030311-08 Airspan Networks Inc. 5-11
5.8.4. Operating in Band-C for FCC Markets
Some operators (e.g. in the USA) have licenses for Band-C (710 – 716 MHz and 740
– 746 MHz). ASWipLL 700 provides an external antenna, allowing coverage in the
entire 700 MHz band (698 to 746 MHz), including the licensed A and B bands used
in USA.
A maximum of four BSRs operating in Band-C are allowed at a Base Station (in
accordance with FCC regulations). This regulation ensures minimum RF
interference with other radio devices that may be operating in nearby frequencies.
In the 1 Megasymbols per second (Msps) mode, the center frequencies are 711.5,
712.5, 713.5, 714.5, 741.5, 742.5, 743.5, and 744.5. Thus, the frequency allocation
for four BSRs is 711.5, 741.5, 714.5, and 744.5.
In the 1.33 Msps mode, the center frequencies are 712, 713, 714, 742, 743, and 744.
Thus, the frequency allocation for four BSRs is 712, 742, 714, and 744.
Figure 5-3: Frequency allocation in a four-sector Base Station
Radio interference may occur between the BSRs operating in the upper frequency
range (i.e. 742 MHz and 744 MHz) and the lower frequency range (i.e. 712 MHz
and 714 MHz). To overcome this interference, a 1-meter vertical separation (in
addition to the general 1-meter horizontal separation) is recommended between the
BSRs operating in the upper frequency and the BSRs operating in the lower
frequency.