5/16/2023 0 Comments Wav to morse decoderTune to that frequency throughout the day as you may have a shift as your equipment warms up. Procedure : We will be providing a known and calibrated signal source at a specific frequency. Identify the valleys and write a script that will “scan” the valleys looking for strong spurious signals.Ĭheating : Look into a program called freqwatch, available at Lesson 2 – Establish Your Offset Pre-game : From Step 1, create a script that will conduct multiple sweeps and average them. rtl_power -f 30M:1.7G:1M -i 5m -1 wctf.csvĬreate a graph that overlays the lines of each csv so that you can identify transmissions and voids. rtl_power -f 30M:1.7G:1M -i 5m -1 base_survey2.csvįrom the competition space, repeat the same survey. rtl_power -f 30M:1.7G:1M -i 5m -1 base_survey1.csvįrom the conference floor, repeat the same survey. Procedure : From your hotel room, conduct a broad frequency sweep from approximately 30MHz to 1.7GHz. Otherwise, you’ll need a BladeRF or HackRF to complete the more specific challenges I don’t have any intention of making a how-to for those challenges as of yet. Get your ticket, get legal and be safe.ĭownload our most favorite of Linux distributions, Pentoo from įor testing at home, you can use a RaspberryPi with PiFM installed for most of these challenges. If you plan on experimenting at home, please ensure you are properly licensed from the FCC and are operating safely and legally! This is important if you choose the wrong frequency to experiment within you can have an adverse effect on the safety of yourself and other individuals around you. The notes here should be able to give you the broad strokes needed to be able to identify flags, meta data and other components used within the challenges. The purpose of this section is to help you train at home to be able to compete in the Wireless Village’s SDR CTF Challenges.
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