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Hopper (Frequency Hopping)

Hop a signal across frequencies

#transmit#frequency-hopping#test
Legal & safety note

This app can transmit signals that impersonate or disrupt real systems. Doing so on real-world frequencies is illegal in almost every country and can be dangerous. It is described here only to explain how the technology works and how defenders detect it. Use exclusively in a shielded lab / RF-isolated test bench on hardware you own.

What it does

Simple

This makes a signal jump quickly from channel to channel, like a frog hopping between lily pads. Engineers use hopping to make signals hard to block. Because it covers a wide range, it's a lab-only tool.

How to use it, step by step

Simple
  1. Only in a sealed/authorised setup.
  2. Open 'Hopper' and set the range.
  3. Watch the signal jump around on a waterfall.

Examples

FHSS concept

Visualise how a hopping signal spreads across a band over time.

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