Finding the Strongest dB Signal Reading A minimum reading of -90 to -100 dBm outside the home is required for the booster to amplify the signal. The stronger the signal the lower the negative dBm reading, a signal between -65 and -85 is ideal.
Measure the strength of your signal in various areas:
– Using an iPhone: Dial ✶3001#12345#✶, a Field Test screen will appear press down on the home button for a few seconds so your dB reading will appear in the upper left hand corner.
– Using an Android: Download the “Network Signal Info” within the Google Play store. Once installed, you will be able to view your dB strength.
– Finding the Closest Cellular Tower: Go to: http://www.opensignal.com, then enter your location and you will see a map of your area displaying the closest cellular towers then by clicking on “Simple View”, the website will display the closest towers for your particular carrier.
Note: Window films that block UV rays may also block cellular signals. If your windows have films applied it may perform better when placed against a wall facing the exterior of the home.
Click here to learn more about SureCall Cell Phone Signal Boosters