RF Signal Tracker

    RF Signal Tracker icon

    RF Signal Tracker

    by: 2.1K 7.4

    7.4 Users



    The RF Signal Tracker is an engineering application for doing impromptu hand-held drive-tests with your Android phone. You can monitor the RF and WiFi signal strength as seen by the device as well as WiFi hotspots, describe a cell site's zone of coverage, identify changes in technology and handover points, and save and playback that data. Site locations can be loaded into a database via a CSV file, or by long-pressing the map on a location to manually insert the site to the database. While many of the phone stats in the app can be displayed on the phone already (go to Settings -> About -> Status to see them). The advantage of this app is you can then map, record, analyze, and share that data in a meaningful way.

    App features:
    - Monitor data traffic bytes.
    - XY Chart of RF and WiFi signal strength over time.
    - Voice notification of signal strength & technology changes, handovers, open hotspots, and more!
    - Insert notes into the RF data collected. Notes can be viewed & edited in Big Picture
    - 'Drive Mode' screen showing just RSSI, Cell ID, and technology to view while driving
    - Localized for French, Spanish (thank you Augusto!), Portuguese, and German (thank you Lutz!).
    - Map and record your color coded RF signal strength as you travel.
    - War driving. Collect WiFi access points and list mobile location at the strongest signal.
    - Users can redefine site locations on the map.
    - Play back, pause, jump to any part of recorded data.
    - Share collected data and Maps with Twitter, Facebook, whatever you can share with.
    - Sector coverage zones describing sector orientation and beamwidth.
    - Sound and Vibration notification on handover.
    - User defined sites can be exported or imported for later use.
    - A limited number of serving cells can be located through Google, OpenCellID.
    - All sites located through Google or OpenCellID saved to local database.
    - Export recorded data to XML, KML (Google Earth), or CSV files.
    - Import older recorded data for playback.
    - Roaming and data states, data activity, CGI.
    - WiFi MAC address, BSSID, supplicant state.
    - WiFi network access points identified.
    - EIRP/ERP and Free Space Loss calculators
    - Big picture of entire drive test or site survey
    - Auto-shutoff at minimum battery level set by user
    - Adjust GPS power settings
    - App to SD card

    *** Please keep those bug reports coming! If you crash and are given the option, please send in the report. I read them all. Or you can email directly at:

    Known Issues:
    - If a site appears off the coast of Africa it means that you are using Google's location service or OpenCellID and they cannot determine that cell's location (so it returns the location 0 deg Lat, 0 deg Lon). A new feature for version 2.2.9 is the ability to define your own site locations (add, move or remove) by pressing a spot on the map or a site icon. Users can do their own site surveys as they travel. This is a workaround for those who do not have access to site location data -- unless you are an engineer for a carrier, you won't have access to this data since site locations are generally considered proprietary.

    - Background recording, where you exit the app after you start recording, will not register signal strength changes if the phone is in sleep mode (screen is blank). This is a "bug" in Android not the app. If the phone is not allowed to sleep, background recording is possible.

    - BER, EVDO, SNR & Ec/Io may display -1. This is the number the Android OS is sending, sorry.

    - The app is optimized for GSM service. CDMA devices are not completely supported. This is due to the lack of a CDMA phone (and contract) on my part, not anything specific to the technology. So if you have a CDMA phone be aware it has not been tested by me.

    - Please remember you are using a phone, not a laptop. If you try to record hours worth of data, and/or play it back, unexpected things may happen.

    Tags: rf signal tracker , rf signal , rf tracker , rf scanner , rf , rf finder , rf signal tracker manual , rfsignaltracker , gsm rf signal

    Users review

    from 2.099 reviews



    Users comments for RF Signal Tracker

    Yağızhan UĞUR

    by Yağızhan UĞUR

    Nov 24, 2017  |  "Poor"

    not working totaly rubbish

    Dave Wright

    by Dave Wright

    Nov 01, 2017  |  "Great"

    Had to unearth old eclair-compatible v2.5.10 of the app (ie not now in Play Store) but that certainly does job of logging time/location/signal strength data. Plus no(?) other GSM signal logging app allows user to select recording interval.

    Ad Na

    by Ad Na

    Sep 02, 2017  |  "Poor"

    Used to work well ... now just crashes straight after start on S7

    A Google user

    by A Google user

    Jul 30, 2017  |  "Poor"

    So app never opened up

    Jack Knoblock

    by Jack Knoblock

    Jun 28, 2017  |  "Poor"

    I had the first version you developed a couple years ago. It was spot on. Worked awesome and did everything I expected of the app. I was Electronic Warfare Technician in the Navy and I was trained by the Military how to perform Electronic Countermeasures, Electronic Support Measures, our job are the ears and eyes of the ship! Well we were the ship I was aboard only defense systems. With Sparrow missle system, 1 forward 30mm gun and one aft. Let's just say we were the only thing saving the ship from a Vampire! Your first app gave me the information to use other apps to interrogate a suspicious signal!

    Bob Moore

    by Bob Moore

    Jun 23, 2017  |  "Poor"

    Too many permissions requested. Worked fine for 5 min. Now crashes immediately. Too bad, it would be useful.