Choose UniFi access point locations

Goal and prerequisites

Choose AP positions by measuring the rooms and applications you need to serve. A product's advertised coverage area and a predicted heatmap are planning inputs. The installed building, client devices and neighbouring networks determine the actual result.

You need a floor plan, the intended AP model, a temporary network connection and power source, and a repeatable phone or laptop. Use the manufacturer's mounting instructions and radiation patterns when selecting orientation. Ubiquiti notes that its measured antenna patterns change in real installations and recommends checking coverage before and after mounting. [1]

Prepare a measurement plan

  1. Mark the useful locations. Draw the office desk, main seating area, bedrooms, video doorbell and outdoor area where service is needed. Add thick masonry, metal shelving, large appliances and separate floors. Mark locations where cameras or other fixed clients will connect.
  2. Define success before moving equipment. For each location, name the application and a practical test. For example, the office must sustain an ordinary video call and the study must complete a local file transfer at your chosen minimum rate. Set those requirements from actual work rather than the AP's maximum marketing rate.
  3. Create an initial plan. Use UniFi Design Center or a measured floor-plan sketch to compare likely locations. Position the intended model in its proper orientation. Consider cable paths and where power will come from. Ubiquiti's design guidance covers both coverage and the number of active users; a location that reaches everyone can still lack sufficient capacity. [2]
  4. Choose two or three candidates. Start near the areas with the heaviest use while keeping the AP clear of avoidable obstructions. A ceiling model should be assessed in its intended installed orientation. Use the mounting hardware approved for that model, and arrange permanent cabling through an appropriately qualified installer.

Measure each candidate

  1. Set up the first candidate temporarily. Use a stable support and a safely routed temporary cable. Confirm the AP's wired link and power before testing. Keep channel width, transmit power and SSID configuration unchanged while comparing positions.
  2. Measure every marked location. Use the same client, height and orientation. Record AP, band, signal, latency, local throughput and the real application's result. Repeat a transfer three times and use the middle value. Run tests on the band that matters to the intended client, since a strong 2.4 GHz reading does not establish equivalent 5 or 6 GHz performance.
  3. Use WiFiman where supported. Its mobile Signal tools can show connection information and roaming with a supported UniFi gateway. The floor-plan mapping feature has additional device requirements, including LiDAR for the documented mapper. If those tools are unavailable, use the client's and AP's measurements with your paper plan. [3]
  4. Move only the AP location. Repeat the complete route for the second candidate. Record doors open or closed, the time and any changed household activity. Avoid comparing one quiet morning with another location measured during heavy network use without noting that difference.
  5. Evaluate the weak spots. Compare the worst required location as well as average performance. Ubiquiti uses roughly -65 dBm or better as a useful coverage recommendation in its troubleshooting guidance; treat this as an initial planning reference, then check the application and client behaviour. A signal value by itself does not measure interference or available capacity. [4]
  6. Test additional APs if needed. Where one location cannot meet the requirements, trial a second wired AP serving the weak area. Recheck channel overlap and test movement between APs. WiFi roaming problems guide addresses roaming. Adding APs also changes the radio environment, so repeat measurements rather than assuming every additional AP improves every room.

Record the results

Location Required application Candidate A result Candidate B result Chosen position result
Office desk Video call and file transfer Record measurements Record measurements Confirm final test
Main bedroom Streaming and browsing Record measurements Record measurements Confirm final test
Outdoor seating Browsing and calling Record measurements Record measurements Confirm final test

Use separate rows for important fixed clients. Keep measurements from different client models labelled separately rather than combining them into one unexplained average.

Verification and recovery

After permanent mounting, repeat the same route and application tests. The final bracket, cable route and orientation can differ from the temporary trial. Verify performance during a realistically busy period as well as a quiet test window.

If the installed result is worse, compare orientation, obstacles and channel conditions with your notes. Restore the previous radio settings before trying another location. Do not compensate for every coverage problem by raising transmit power; the return path from a low-powered client also needs to work. Keep the final floor plan, cable labels and measurement sheet with the network backup.

Sources

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