A point-to-point wireless bridge is a pair of outdoor radios that beam your network from one building to another across a property. When the well house, the back barn, or the far greenhouse has cameras and sensors but no way to reach the main network, and trenching a cable is out of the question, two of these aimed at each other carry the connection through the air. It is the practical answer to “how do I get the network over there” when over there is hundreds of meters away.
What it is.
Two weatherproof, directional radios, one at each end, set so one acts as the base and the other as the remote. Unlike the Wi-Fi in your house, these are not for phones and laptops: they are a backhaul link, a single pipe between two locations that your regular network plugs into at both ends. Their high-gain antennas focus all their signal in one direction, which is how they reach far further than an ordinary access point. Common gear comes from the Ubiquiti airMAX line and similar.
Line of sight is the rule.
The one thing that makes or breaks a bridge: the two radios need a clear line of sight to each other. These links usually run at 5 GHz, which is fast but easily blocked, and a stand of trees, a hill, or a metal building in the path will kill the connection or make it flaky. Mount each unit high enough to see the other over whatever is between them, aim them carefully, and the link is solid. Expect a leafed-out tree line in summer to be a real obstacle that was not there in winter.
Power and mounting.
Most of these units are powered over the network cable with PoE, so a single Ethernet run carries both their data and their power up the mast. Mount them solidly where wind will not shift the aim, and if either sits on a tall pole, fit proper grounding and surge protection, because an exposed outdoor radio is a lightning target. Done well, a bridge runs for years untouched; done carelessly, the first storm takes it out.
Key facts.
Where it fits, and where it doesn’t.
Where it fits
- Linking an outbuilding’s network back to the house.
- Getting cameras or a sensor hub online across a property.
- A gap where trenching cable is impractical or costly.
- A high-bandwidth link, where LoRa carries far too little.
Where it doesn’t
- Connecting phones or sensors directly; it is a backhaul, not an AP.
- No clear line of sight; trees and hills block 5 GHz.
- Tiny far-field sensor data; that is LoRa.
- A mobile link; both ends must be fixed and aimed.
Resources & where to buy.
Ubiquiti (airMAX) PoE (how it is powered) LoRa (for tiny far data) Wi-Fi overview
Frequently asked questions.
What is a point-to-point Wi-Fi bridge?
It is a pair of outdoor directional radios that carry a network link between two fixed points, like a barn and a house, across a property. One acts as the base and the other as the remote, and your regular network plugs into both ends. It is a backhaul link, not an access point for phones, which is how it reaches hundreds of meters or more.
Do I need line of sight for a wireless bridge?
Yes, in practice. These links usually run at 5 GHz, which is fast but easily blocked, so trees, hills, and metal buildings in the path will kill or destabilize the connection. Mount each unit high enough to see the other, aim carefully, and remember a tree line that is clear in winter can block the path once it leafs out in summer.
How is a point-to-point bridge powered?
Usually by PoE, Power over Ethernet, so a single network cable carries both the data and the power up the mast to the unit. Mount it solidly so wind does not shift the aim, and if it sits on a tall pole, add grounding and surge protection, because an exposed outdoor radio is a lightning target.
When should I use a bridge instead of LoRa?
Use a bridge when you need real bandwidth across a property, like camera streams or a full network link to an outbuilding, and you have line of sight. Use LoRa when you only need to carry tiny sensor readings over distance on low power. A bridge moves a lot of data between two points; LoRa moves a little data from many points.