Pisces Decoder listens for the sound of a telemetry tag via the microphone. If a valid tag is heard, it will display the code along with the time, coordinates of the device, signal strength, and be recorded to a file which can then be exported. The app can be used with any audio receiver or scanner without decoding capability that can be tuned to VHF frequencies of telemetry tags creating a relatively inexpensive means for manual tracking.