Installation guide

FCC Approval Statement

Altitude™ 4760 Series Access Point Installation Guide

wireless systems operating in the 5470 MHz – 5725 MHz band. These wireless devices are

subject to Section 15.407 of our rules and when operating as a master device they are

required to implement radar detection and DFS functions. We are continuing our work to

develop long-term equipment authorization test procedures that will ensure that the devices

comply with our rules that include protecting the TDWR operations. In the interim, the

Commission will now allow certification of wireless master devices with radar detection

function and with DFS capability, if they meet the following conditions:

1 Devices will not transmit on channels which overlap the 5600 – 5650 MHz band.1

2 Devices intended for outdoor use will be further restricted, as follows:

●

Devices must be professionally installed when operating in the 5470 – 5725 MHz

band.2

●

Grantees must provide owners, operators and all such installers with specific

instructions in their user’s manual on requirements to avoid interference to TDWRs

and information that meets the following instructions:

- Any installation of either a master or a client device within 35 km of a TDWR

location shall be separated by at least 30 MHz (center-to-center) from the TDWR

operating frequency 3, 4, and 5.

3 The devices subject to the requirements in this KDB can select the initial channel for

operation to avoid TDWRs and apply the Uniform Channel Spreading requirements (see

FCC 06-96 in ET Docket 03-122 released June 30, 2006) on the remaining available

frequency band of operation. All the other test procedures including the test radar

patterns remain the same at the present time. A revision to the measurement procedure

with modification to the Uniform Channel Spreading requirement and other changes

will be released in the future. The Commission will also address the issue of any field

upgrade option at that time.

4 The grantee must identify the specific expertise and the training required by the

installers for installing these types of devices.

5 In some instances it is possible that a device may be within 35 km of multiple TDWRs.

In this case the device must ensure that it avoids operation within 30 MHz for each of

the TDWRs. This requirement applies even if the master is outside the 35 km radius but

communicates with outdoor clients which may be within the 35 km radius of the

TDWRs.