(True or False) Failure to remove the comparator travel cover before radiating will destroy the comparator window on the radar.

• A. False
• B. True
• C. Not enough information
• D. Depends on model

Answer: (B)

The key idea is that protective covers on RF interfaces must be removed before transmitting because they are not designed to handle microwave power. The comparator window is the delicate RF boundary that must be exposed for the radar signal to pass correctly. The comparator travel cover sits in front of that window and is not RF transparent, so when you radiate with it in place, the energy is absorbed and heat builds up quickly. That heat can damage or warp the cover and, more importantly, transfer to the window itself, risking cracks or other failure of the window and degraded performance. Proper operation requires removing the cover so the RF path remains clear and adequately cooled. That’s why the statement is true.