Us - Operation To Avoid Interference With Tdwr; Table 2: Tdwr Location Information - Motorola PMP 100 Release Notes And User Manual Supplement

Release 10.5
Regions Products
Affected Affected
Canada P11 Hardware
Series 5.4-GHz
PMP 100 (FSK)
P11 Hardware
Series 5.4-GHz
PTP 100 (FSK)
4.1

US - OPERATION TO AVOID INTERFERENCE WITH TDWR

The US FCC, NTIA, FAA, and industry are working to resolve interference to Terminal Doppler
Weather Radar (TDWR) systems used near airports that has occurred from some outdoor
wireless systems operating in the 5470 MHz – 5725 MHz band. These wireless devices are
subject to Section 15.407. When operating as a master device they are required to implement
radar detection and DFS functions and radios must not transmit on channels which overlap the
5600-5650 MHz band used by TDWR.
Additional information is available from
the FCC's Knowledge Database (KDB) Publication 443999 "Interim Plans to Approve
o
UNII Devices Operating in the 5470-5725 MHz Band with Radar Detection and DFS
Capabilities" available at
the Wireless Internet Service Providers Association (WISPA) in coordination with
o
Spectrum Bridge: http://www.spectrumbridge.com/udia/home.aspx.
5.4-GHz radios must be professionally installed. The professional installer must have the
following expertise:
Understanding of the configurations outlined in
o
Canada Certification Numbers and covered configurations,
applicable to the 5470-5725 MHz U-NII band.
Understanding of the master/slave operation of the AP/BHM and SM/BHS – that the
o
AP or BHM determines the transmission frequency for both master and slave.
Understanding of the SM/BHS frequency scan selection settings and how they can
o
be set to prevent scanning and therefore transmission on any specific frequencies.
Understanding of the option to set primary and two alternate frequencies on the AP
o
or BHM.
Ability to use the GUI to set the primary and alternate transmit frequencies on an AP
o
or BHM, scanned frequencies on an SM or BHS, and Transmit Output Power of a
radio.
Ability to use the spectrum analyzer feature of the radio to observe the local RF
o
environment.
Ability to determine if a radio is within 35 km (21.75 mi) of any Terminal Doppler
o
Weather Radar (TDWR) using the Search function available at
http://www.spectrumbridge.com/udia/search.aspx, or using various mapping
programs and the data from in
Ability to set the AP/BHM's transmit frequency (frequencies, if using alternate
o
frequencies) and SM/BHS's scanned frequencies at least 30 MHz (center-to-center)
from any TDWR operating frequency or frequencies within 35 km of the radio.
To gain this expertise the following training is required:
FCC Draft, November 2010
Feature
IC Certfication of new P11 Hardware Series 5.4-GHz PMP
hardware series 100 APs and SMs and PTP 100 BHs
are now approved for sale in Canada.
For compliant operation, the Region
Code must be set to Canada by the
professional installer.
https://fjallfoss.fcc.gov/kdb/GetAttachment.html?id=33781
Table 2: TDWR Location
Release Notes and User Guide Supplement
Description
Table 11: US FCC IDs and Industry
especially those
Information.
See for
Details
Section
10.2.2 and
Table 11
Page 12