Lossy cable or poorly designed antennas can ruin coverage. Cable and Antenna Quality: High-quality cables and directional antennas can make the difference between 1 bar of AT&T signal and 5 bars.For mobile boosters used in cars and RVs, this is often the most important specification. Uplink Power: The maximum uplink power rating of a signal booster determines how well the booster will perform at the very edges of cell coverage.If your outdoor signal is strong, it's the most important booster spec. Downlink Power: The maximum downlink power rating of a repeater determines its maximum coverage area.If you're in a weak-signal area, it's the single most important specification of a booster. Gain: Gain is a measure of how much a booster amplifies the signal.Some cheap boosters only amplify a subset of these bands. There are 5 main frequency bands that the FCC allows boosters to amplify. Frequency Bands: Not all boosters support the same frequencies.However, they're also more expensive than broadband boosters that amplify all carriers by a lesser amount. Carrier-specific boosters can have much more gain, and provide more advanced diagnostics to help aim the outdoor antenna. Carrier-specific vs Broadband: The FCC divides boosters into these two categories.We've carefully vetted all the boosters in this list to make sure they're all compliant and certified. You can be fined up to $100,000 per incidence for using an uncertified booster. FCC certification: For a booster to be legal to use in the US by consumers, it must be certified by the FCC.Here are a few of the things that differentiate cheaper AT&T boosters from more expensive units: That's why we carefully vetted the products in this list to make sure that they offer the best value for money of the boosters on the market today. We realize that not everyone has thousands of dollars to spend on an AT&T booster. Because they talk so many customers through the installation process, they know exactly which boosters customers are most happy with. Last but not least, we got feedback from our team of Signal Specialists, who provide technical support to thousands of customers each year. They know what to look for in terms of installation ease and performance. Our enterprise installation team installs hundreds of boosters in buildings between 20,000 and 500,000 sq ft.
So, after testing in the lab, we tested each system in the field with our enterprise installation team. In particular, we tested gain and output power on the uplink and downlink channels of the five main frequency bands utilized by AT&T.īut nothing beats real-world testing. We thoroughly tested all the amplifiers in this list (alongside many others) in our lab to confirm their manufacturer-advertised specs. We based our results in this guide on three main sources of information. Still unsure? Read more about this in our signal guide! If you're unsure whether the signal outdoors is weak or strong, check out our guide to measuring cell signal.įinally, if you're installing a mobile booster in a vehicle, truck, or RV, then the booster spec that matters the most is the uplink output power. You're unlikely to reach the maximum downlink output power of a booster, so the higher its gain, the greater the coverage of your booster. But if the signal outside the building is weak (less than -90 dBm RSRP), then the most important booster spec is its gain.You won't need much amplification to max out the booster, so the gain specification doesn't matter as much. If the signal outside the building is strong (greater than -80 dBm RSRP), then the most important booster spec is the downlink output power.Looking for a booster to be used in a building?
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If you look at the user manuals or product literature for AT&T signal boosters, there are a lot of different specs listed.īut here's the low-down: depending on your application and the signal conditions, only one booster spec will matter.
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