5 Ways to Check Signal Strength on Android Phone

by Jeffry on February 23, 2010

Sometimes Android users gets frustrated when they are unable to connect because the signal strength of hotspot or community WiFi networks is too weak and not strong enough to connect. Below is a list of 5 free android apps to measure or check real signal strength.

Following free android apps also help you to identify if the cellphone carrier provides 3G coverage in your area before changing your cellphone plan. The benefit of 3G coverage on android phone is that you can tether your android phone easily.

1) The RF Signal Tracker Allow you to check the signal strength of their hand-held Android phone on ad-hoc basis. Just drive or walk a particular area and view the Map and color coded RSSI (received signal strength indication) for the phone as well as the serving cell location.


The marker color will indicate your signal strength at that point. Solid red indicates no signal, yellow color signifies moderate signal, and green means strong signal strength. The tool is studded with number of preferences and options to be set. This application can be found in the Android Marketplace under “Tools”.

2) Antennas for Android - Provide antenna locations in a graphical way on Google Maps around your neighborhood. If you have installed multiple SIMS on your Android handset then you can compare networks of different carriers or to get a real-time picture of how your GSM phone selects which antennas to connect to.

Antennas for Android

With Antennas for Android app you can also export the data in KML file format that can be used with Google Maps/Earth for further analysis. It is important to note that network information is visible for your network carrier only.

  • On 2G GSM networks (GPRS/EDGE) – Display the LAC/CID/Signal strength and location of active connected antenna and the active neighbor antennas.
  • On 3G GSM networks – Display only the current antenna (LAC/CID/Signal strength, and location, if available).
  • On CDMA networks – Displays the current antenna (BID/NID/SID and location, if available). The signal strength indicator may be unavailable. CDMA support requires Android 2.x (on Android 1.6 devices you will only see network location)

3) Sensorly Map Viewer Android application that tells you about wifi and cell phone signal quality and localized forecasts of signal quality in a given location. It uses colors to represent network type and signal level on maps. It also displays the maps up to city zoom-level for free demonstrating street-level zoom for every map.


With GSM maps you can easily identify the type and quality of a GSM network using a combination of colors of varying intensities : blue for 2G (GPRS), green for 2.5G (EDGE), yellow for 3G (UMTS) and red for 3.5G (HSPA); very dark for 1 bar, very bright for 5 bars. The Maps helps you in identifying hotspots that offers good 3G signal quality for tethering, check if their phone’s 3G reception is as good as average, and more.

4) Tricorder It is an open source android app that reads and checks signal strength of GPS satellites, display acceleration, the local magnetic field, an analysis of the local acoustic environment; your location from various providers, the availability and strength of cellular and WiFi signals, and the current state of the Sun and solar wind, including current pictures of the Sun.


The screen above shows you the longitude and latitude coordinates of the cellular signal as well as your GPS receiver along with other available satellites. Other satellite’s signal strength will help you to decide, whether to witch to other carrier or not.

Currently, this signal strength checker android app works with T-Mobile G1, Google ION / HTC Magic, HTC Tattoo, Motorola Droid, and HTC Nexus One, HTC Hero (not the Sprint one), and LG.

5) GPS Status – Free android app to measure real signal strength of your carrier. It displays your GPS and sensor data like the position, number and signal strength of GPS satellites, state and location of each visible GPS satellite on a simple sky view and much more.


Each satellite is represented by a dot, with a size depending on its signal strength.

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