SDR-BASED APRS TRACKER SDR-BASED APRS TRACKER INTRODUCTION What - - PowerPoint PPT Presentation

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Oct 19, 2023 582 likes •650 views

EOSS PRESENTATION SDR-BASED APRS TRACKER SDR-BASED APRS TRACKER INTRODUCTION What APRS application to aid trackers in payload recovery Primary Features Software based (no traditional radios) Simultaneous reception of multiple

SLIDE 1

SDR-BASED APRS TRACKER

EOSS PRESENTATION

SLIDE 2

What

APRS application to aid trackers in payload recovery

Primary Features

Software based (no traditional radios)
Simultaneous reception of multiple frequencies
Offline maps
Landing predictions
Receive only, nothing is transmitted over the air

INTRODUCTION

SDR-BASED APRS TRACKER

SLIDE 3

Presentation Data Storage Data Acquisition

CORE CONCEPT

SDR-BASED APRS TRACKER

Database

APRS Packets

144.390MHz 144.340MHz 144.905MHz ...

APRS Packets

145.645MHz 145.710MHz 145.535MHz

PROCESSING PROCESSING

Graphical Interface

SLIDE 4

BLOCK DIAGRAM

SDR-BASED APRS TRACKER

RTL-SDR GnuRadio Dire Wolf Aprsc

USB stick Antenna

Web Server

APRS database OpenStreetMap database and tile server

Web Clients

Uses Javascript and Leaflet library for mapping

APRS Packet Data

TrackPoint
APRSISCE
YAAC
Xastir
Internet (if igating)

SLIDE 5

THE 411

SDR-BASED APRS TRACKER

2m Rx Antenna RTL SDR USB Stick Small Industrial Computer GPS Puck usb usb coax wifi

COMPUTER CREATES ITS OWN WIFI HOTSPOT (NO INTERNET)

wifi Devices connect wirelessly to the computer all without any Internet

connection. Use a web browser on the

device of your choice to access the tracker application - no wires!

SDR AND TRACKER FUNCTIONALITY RUN ON THE COMPUTER