Deep Dive: G2E07
The correct answer is B: Computer time accurate to within approximately 1 second. When using FT8, you need computer time accurate to within approximately 1 second. FT8 uses synchronized time slots, so accurate time is essential. For amateur radio operators, this requires synchronizing your computer clock. Understanding this helps when setting up FT8 operation.
Why Other Answers Are Wrong
Option A: Incorrect. FT8 doesn't require special hardware modems - it uses software modems. A special hardware modem isn't needed. Option C: Incorrect. Receiver attenuator settings aren't a requirement - that's an operating preference, not a requirement for FT8. Option D: Incorrect. Vertically polarized antennas aren't required - FT8 works with any antenna polarization. Antenna polarization is a choice, not a requirement.
Exam Tip
FT8 requirement = computer time accurate to within ~1 second. Think 'F'T8 = 'F'ine 'T'ime '8'seconds accuracy. FT8 uses synchronized time slots, so accurate time is essential. Not about hardware modems, attenuators, or antenna polarization - just time accuracy.
Memory Aid
FT8 requirement = computer time accurate to within ~1 second. Think 'F'T8 = 'F'ine 'T'ime. FT8 uses synchronized time slots, so accurate time is essential. Must synchronize computer clock for proper operation.
Real-World Example
You set up FT8 operation. You synchronize your computer clock to ensure it's accurate to within 1 second. FT8 uses time slots that must be synchronized, so accurate time is critical. Without accurate time, your transmissions won't align with the time slots, and contacts will fail.
Source & Coverage
Question Pool: 2023-2027 Question Pool
Subelement: G2E
Reference: 2023-2027 Question Pool · G2 - Operating Procedures
Key Concepts
Verified Content
Question from the official FCC General Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the G2E topic.