Now, we also know that cell phone signals are quite flaky since there are almost a dozen factors that influence these speed tests.īy our own estimation (based on the three tests and other data from testing signal boosters), we would say a variance of +/- 3 dB is normal even when the phone is at the same spot. Luckily, we ran two more tests with almost the same results. But of course, the upload speeds before were much higher at 12.35 Mbps compared to 9.93 Mbps after.Īnd for those who prefer the bar talk, it was 4 bars of 4G LTE before and 3 bars of 4G LTE after. With download speeds at 3.55 Mbps before and 4.25 Mbps after. You can find alternative speed test apps to use here. Learn more about dBm signal and what it means with our blog post: How to Read Signal Signal Strength The Right Way.įor download speed tests we used by Ookla. Basically, the signal has weakened by 2X! Yikes. On dB reading, we had a -84 dBm before and a -87 dBm after. Remove battery cover and find the manufacturer's sticker. #3: Installing the Cell Antenna Stickerįairly, simple instructions. We're using a Samsung Galaxy Note 4 with AT&T service as our test phone. So that basically a BIG NO to all things iPhones and Apple products. Very important info: These cell antenna boosting stickers only work for smartphones with removable batteries. In plain English: It's a signal strength diaper for your phone. According to the back of the package, the Cell Antenna "captures stray radiation in the body of the phone and to re-radiate the signal to improve the phone's performance." The product itself is literally a sticker with some metal lining design.
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