• Not able to receive any signal/Noisy waterfall
• Antennas
• Gain settings
• Description of the gain settings
• RX/TX amp
• Filters
• Type of filters:
• Band-Pass Filters:
• Low-Pass Filters:
• High-Pass Filters:
• Notch Filters:
• Cables / grounding
• Nearby Transmitters
• Local Noise Sources
• Power Banks
• H2 Internal Battery Charger
• Broken RF Chain
• Intermittent Signal Loss/Noise
• Loose Cable Connections
• Nearby Transmitters
• H2 Internal Battery Charger
• Local Noise Sources