Recently I made some updates to the page explaining the process of planning long range WiFi communications. The following changes where made.
Change 1, brought to my attention by a reader of my website. It relates to the NZ regulations of PtMP systems.
"As each client station is receiving from and transmitting to the one station (the central access point) the client station is essentially employing a point-to-point service and so, in the frequency range 5.725 GHz to 5.850 GHz is allowed the higher power limit of up to 1 Watt peak transmitter power, with up to 200 Watts (e.i.r.p.) peak radiated power. Note that there is a peak power spectral density limitation of less than 17 dBm in any 1 MHz bandwidth. Client equipment on other frequencies covered by the Short Range Device GURL are limited in the same manner as the central access point."
Change 2, user friendly link calculations.
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George Timmermans, Research Toolmaker, Software Engineer and Tinkerer