Applications; Configuration Options - Rf, Ip, Dfs; Figure 15: Los, Nlos, And Nlos - Cambium Networks PMP 400 Series Configuration And User's Manual

PMP 400/430 and PTP 200/230 Series Configuration and User Guide

Figure 15: LOS, nLOS, and NLOS

Whereas multi-pathing degrades a link in some technologies (FSK, for example), OFDM can often use multi-
pathing to an advantage to overcome nLOS, especially in cases where the Fresnel zone is only partially
blocked by buildings, "urban canyons", or foliage. OFDM tends to help especially when obstacles are near
the middle of the link, and less so when the obstacles are very near the SM, AP, or BH.
However, attenuation through walls and trees is substantial for any use of the 5.8 GHz, 5.4 GHz or 4.9 GHz
frequency bands. Even with OFDM, these products should not be expected to penetrate walls or extensive
trees and foliage.

Applications

Applications for the PMP 400/PTP 200 (5.4 GHz) and PMP 430/PTP 230 (5.4 & 5.8 GHz) Series include:

High throughput enterprise applications

nLOS video surveillance in metro areas

Extend networks into urban areas

Extend networks into areas with foliage
Applications for the PMP 49400 (4.9-GHz) and PTP 49200 Series systems include:

High throughput licensed network for government applications

Municipal network - nLOS video surveillance in metro areas

Disaster relief network

Data service network - extend licensed networks into areas with foliage
Configuration Options – RF, IP, DFS
These systems use the Canopy Media Access Controller (MAC) layer. Settings like Downlink Data %,
Range, and Control Slots are similar to Canopy FSK radios. An OFDM AP can communicate to over 200
SMs, similar to a Canopy FSK AP.
The GUI (Graphical User Interface) is almost identical to Canopy's FSK products, with a few additions to
support OFDM-specific features.
pmp-0042 (March 2014) Page 29 of 98