About this app

The Network Survey app enables logging cellular, Wi-Fi, Bluetooth, and/or GNSS information to a log file (GeoPackage or CSV format). For cellular records it supports logging GSM, CDMA, UMTS, LTE, and NR records.

This app has the ability to access your device's location in the background. The background location permission is needed to start Network Survey at boot. More information can be found in the App's privacy policy located at https://github.com/christianrowlands/android-network-survey/blob/master/privacy_policy.md

The cellular logging feature logs several details about the current serving cell, and then some basic information about the neighbor cells. This app won't log all 5 cellular protocols at once. Instead, it will only log information about the protocols that are current connected. If logging for one specific protocol is desired, then the phone must be locked to that protocol (try using *#*#4636#*#* from the dial pad).

The cellular survey records can be streamed to either a gRPC server or a MQTT broker. This is not on by default and a gRPC server or MQTT Broker needs to be setup for this feature to work.

See https://github.com/christianrowlands/network-survey-messaging for more details on setting up a network survey gRPC server.

See https://mosquitto.org for information on setting up a MQTT Broker.

A bonus feature of this app is its ability to create a Call Detail Record (CDR) file. If enabled, CDR events are logged to a CSV file.

The app also has a calculator that converts an LTE Cell ID to the corresponding eNodeB ID and Sector ID, and a calculator that converts an LTE PCI to the corresponding Primary Sync Sequence (PSS) and Secondary Sync Sequence (SSS).

I hope you enjoy this app as much as I have enjoyed writing it. If you have any feature requests please feel free to reach out by creating a GitHub issue at the link below.

The source code for this app lives here: https://github.com/christianrowlands/android-network-survey

Icon made by Smashicons from www.flaticon.com is licensed by CC BY 3.0

New features

* The Reference Signal SNR is now logged in LTE messages as well as displayed in the UI.
* Adds a fallback for getting the cellular providers name if it is not available from the system.
* Switched the donut cellular signal strength indicators to a horizontal signal bar.
* "Anchor" the view at the bottom of the cellular details screen when scrolled to the bottom to ensure that newly added neighbors are immediately visible.

App Permissions

Required to be able to access the camera device.
Allows an app to access approximate location.
Allows an app to access precise location.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows read access to the device's phone number(s].
Allows applications to open network sockets.
Allows applications to access information about networks.
Allows applications to access information about Wi-Fi networks.
Allows applications to change Wi-Fi connectivity state.
Allows applications to connect to paired bluetooth devices.
Allows applications to discover and pair bluetooth devices.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.