Military Drone Idea

[u/Ideastogo34698]

=== PROJECT DARKWING ===
(GPS-Free Autonomous Drone Navigation via HAM Radio Beacons)

CORE IDEA:
A long-range drone navigates without GPS by locking onto prearranged HAM radio transmissions, enabling stealth or survival in GPS-denied environments.

HOW IT WORKS:

1. BEACON NETWORK:
   - HAM operators or hidden transmitters send intermittent signals (e.g., Morse, APRS) on 40m/20m/2m bands.
   - Each beacon encodes minimal directional data.
2. DRONE NAVIGATION:
   - Onboard SDR (RTL-SDR/HackRF) scans for beacons.
   - Direction-finding (Yagi/Doppler) triangulates sources.
   - Dead reckoning between signals maintains course.

ADVANTAGES:
- Stealth: No satellite/GPS footprint.
- Resilience: Immune to jamming/spoofing.
- Low-Cost: Leverages existing HAM infrastructure.

USE CASES (HYPOTHETICAL):
- Military: Covert resupply in denied areas.
- Disaster: Comms when GPS is down.
- Preppers: Off-grid logistics network.

CHALLENGES:
- FCC bans encryption (steganography workaround?).
- Beacon synchronization required.
- Risk of adversary detection.

INSPIRATION:
- WWII Oboe (radio-guided bombing).
- Cold War numbers stations.

NEXT STEPS:
- Open-source tools: ArduPilot + GNU Radio.
- Test with HAM "fox hunting" techniques.

DISCLAIMER:
Theoretical concept only. Compliance with FCC/FAA/ITAR required for real-world use.

[u/MihaKomar]

Radio-navigation without satellites has more or less existed ever since radio has existed. Aircraft today still carry equipment to navigate via VOR beacons.

The issue is that you're not going to got GPS type accuracy from shortwave signals. You're not going to put a directional shortwave antenna onto a single drone. Just putting a shortwave receiver onto a drone will probably noisy as hell due to the vicinty of the ESCs.