PTP 450 Configuration and User Guide
Overview of PTP 450
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pmp-0815 (August 2015)
Overview of PTP 450
This section describes the key features, typical uses, product variants and components of
the PTP 450.
Purpose
Cambium PTP 450 Series networks are designed for wireless point-to-point links in the
licensed 3.6 GHz, 3.6 GHz, lightly licensed 3.65 GHz, 5.4 GHz and 5.8 GHz bands. Users
must ensure that their configuration and usage of PTP 450 Series complies with local
operating regulations.
The PTP 450 Series adds increased network throughput and capacity compared to the PTP
230. The PTP 450 Series enables network operators to grow their business by offering
more capacity for data, voice and video applications.
Key Features
The Cambium PTP 450 Series offers the following benefits:
Up to 132 Mbps of usable throughput.
State-of-the-art MIMO (Multi-In Multi-Out) technology.
MIMO Matrix B: This technique provides the ability to double the throughput of a radio
transmission under proper RF conditions. Different data streams are transmitted
simultaneously on two different antennas.
MIMO-A mode of operation using the same modulation levels as the MIMO-B mode.
In addition to providing LOS (Line-Of-Sight) connectivity, use of OFDM technology can
provide nLOS (near Line-Of-Sight) connectivity and sometimes NLOS (Non-Line-Of-Sight)
connectivity:
LOS: the installer can see the BHM from the BHS and the first Fresnel zone is clear.
nLOS: the installer can see the BHM from the BHS, but a portion of the first Fresnel
zone is blocked.
NLOS: the installer cannot see the BHM from the BHS and a portion or even much of
the first Fresnel zone is blocked, but subsequent Fresnel zones are open.
Figure 1
Line of Sight Diagram
