Deep Dive: E2E08
The correct answer is B: PACTOR. Which of the following HF digital modes can be used to transfer binary files is PACTOR. PACTOR is designed for file transfer with error correction. For amateur radio operators, this is important for HF data communication. Understanding this helps when transferring files over HF.
Why Other Answers Are Wrong
Option A (PSK31): Incorrect. PSK31 is for text communication, not binary file transfer - PACTOR is for file transfer. PSK31 isn't for files. Option C (RTTY): Incorrect. RTTY is for text communication, not binary file transfer - PACTOR is for file transfer. RTTY isn't for files. Option D (AMTOR): Incorrect. AMTOR is for text communication, not binary file transfer - PACTOR is for file transfer. AMTOR isn't for files.
Exam Tip
HF digital mode for binary file transfer = PACTOR. Think 'P'ACTOR = 'P'acket 'A'nd 'C'orrect 'T'ransfer 'O'f 'R'aw data. PACTOR is designed for file transfer with error correction. Not PSK31, not RTTY, not AMTOR - just PACTOR.
Memory Aid
HF digital mode for binary file transfer = PACTOR. Think 'P'ACTOR = 'F'ile 'T'ransfer. PACTOR is designed for file transfer with error correction. Important for HF data communication.
Real-World Example
Transferring binary files over HF: PACTOR is the digital mode designed for this purpose. PACTOR includes error correction and can handle binary data, making it suitable for file transfer. PSK31, RTTY, and AMTOR are text-only modes. This is the mode - PACTOR can transfer binary files.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E2E
Reference: 2024-2028 Question Pool · E2 - Operating Procedures
Key Concepts
Verified Content
Question from the official FCC Extra Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the E2E topic.