Usage cautions

The LNA of HackRF is sensitive and can get damaged

Prevention

SMA port

• DO NOT swap the antenna while power is on.
• If you use an antenna that expose a metal part, DO NOT touch the antenna with you hands/body (static electricity can damage the LNA)

Monitoring range

• You shouldn't receive near high power transmitters, even if it's not in the range that you are monitoring

Diagnostic

• Try listen local radio. Try with AMP on and off both.
• Try capture and replay a non-rolling-code _{(to prevent break the rolling sync)} fob (radio remote _{not IR remote which is more common}). Try with AMP on and off both.

Repair