FALCON USER’S GUIDE Figure 4-15: Launch site emissions Table 4-15: Launch site emissions Frequency Range E Field Limit (MHz) (dBμV/m) 100 – 400 132 400 – 1200 140 1200 – 1400 148 1400 – 11000 146 11000 – 18000 90 4.3.6.6 EMI SAFETY MARGIN To account for unexpected variation in hardware and environments, 6dB of EMI safety margin is required. EMI safety margin is typically expected to be included on the “victim” side of the source-victim analysis. Each emissions section in this guide specifies whether safety margin has been included in the envelope provided. When safety margin has not been included, it is expected that the relevant spacecraft susceptibility limit will include 6dB of EMI safety margin. 4.3.6.7 LIGHTNING PROTECTION SpaceX launch pads at CCAFS/KSC contain full lightning protection systems. The integration facilities and hangars are equipped with lightning grounding systems to protect personnel and hardware from lightning. The SLC-40 and LC-39A launch pads are equipped with overhead wire lightning protection systems. These systems are designed to: 1. Be a preferential path for lightning in order to prevent direct attachments to personnel and hardware in the protection zone. 2. Avoid side flash between the overhead wires and flight hardware and ground systems. 3. Minimize electromagnetic coupling to flight hardware and ground systems in order to protect sensitive electronics. © Space Exploration Technologies Corp. All rights reserved. 33