Hardware – what do you really need:
- Raspberry Pi 3 (~40€)
- Mini-SD-Card 32 GB (~10€)
- RTL-SDR Dongle (~25€)
- Power Bank 20000 mAh (~35€)
- Yagi Antenna (~100€)
- Antenna Connection Cable (~15€)
Hardware – useful extras:
- Low Noise Amplifier LNA4ALL (~25€)
- Waterproof Case (~30€)
More Details will follow.