If you want to segment and restrict traffic, you’ll want to add a dedicated router or firewall. Some radios offer basic routing, NAT, or firewall features, but usually other equipment controls the networks and the devices that connect to them. Radios are mainly responsible for transporting traffic and ensuring bits get sent and received reliably. They convert Ethernet into a wireless signal, and a wireless signal into Ethernet. A more accurate description is that they act as a transparent layer 2 wireless Ethernet bridge. At the most basic level, you can think of them as a wireless cable. PtP and PtMP radios bridge a network from Site A to Site B, transporting data back and forth. This guide won’t design your network for you, but it should help you understand how to design your own. First we have to go through the basics of PtP and PtMP radios, explain Ubiquiti’s many product lines, and which frequencies and models to consider. In future parts of this guide I’ll cover link planning, configuration, installation, and maintenance. This introduction focuses on the fundamentals. It’s impossible to cover everything about PtP and PtMP radios in a single post. This allows them to cover longer distances than omnidirectional antennas. Rather than broadcast over an entire area, they focus their energy in a single direction. They are bad for broad coverage, but much better for long range connections. PtP and PtMP radios use antennas that have higher gain and are more directional. To cover longer distances or extend a network to another location, point-to-point (PtP) and point-to-multipoint (PtMP) radios should be used instead. Additional APs can expand coverage, but a Wi-Fi network’s range is also limited by the low-powered phones and laptops that connect to it. They usually cover a few hundred feet at most, and much less with walls or obstructions in the way. Omnidirectional APs are good at covering the surrounding area, but bad at covering long distances. They broadcast in all directions, allowing nearby devices to connect. In a typical Wi-Fi network, wireless access points use omnidirectional antennas. Intro to Ubiquiti PtP and PtMP Radios Omnidirectional vs.
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