Implementation of a Low-Cost Flight Tracking System for High-Altitude Ballooning

TL;DR

This paper presents a low-cost, portable, open-source tracking system for high-altitude balloons that operates independently of internet and simplifies the tracking process compared to traditional VHF-based methods.

Contribution

It introduces a novel, affordable handheld tracking system using open-source software, reducing complexity and cost for HAB tracking without internet dependence.

Findings

System successfully tracks HABs in preliminary tests

Cost reduction compared to traditional VHF tracking systems

Operates independently of internet connection

Abstract

High altitude balloons (HABs) are typically tracked via GPS data sent via real-time radio-based communication systems such as the Automated Packet Reporting System (APRS). Prefabricated APRS-compatible tracker modules have made it trivial to transmit GPS coordinates and payload parameters in compliance with the requisite AX.25 protocol. However, in order to receive and track APRS signals, conventional methodologies call for the use of a Very High Frequency (VHF) receiver to demodulate signals transmitted on the 440/144 MHz APRS frequencies, along with a compatible antenna and custom methodology for visualizing the HAB's location on a map. The entire assembly is typically costly, cumbersome, and may require an internet connection in order to obtain real-time visualization of the HAB's location. This paper describes a low-cost, handheld system based on open-source software that operates independently of an internet connection. The miniaturized system is suited to tracking done either from a vehicle or on foot, and is cost-effective enough to be within the means of nearly any HAB user. The paper also discusses preliminary test results and further applications.