Deep Dive: E2D04
The correct answer is C: APRS. What technology is used for real-time tracking of balloons carrying amateur radio transmitters is APRS. APRS (Automatic Packet Reporting System) is used for real-time tracking. For amateur radio operators, this is important for balloon tracking. Understanding this helps when tracking balloons.
Why Other Answers Are Wrong
Option A (FT8): Incorrect. FT8 isn't used for balloon tracking - APRS is used for real-time tracking. FT8 isn't for tracking. Option B: Incorrect. Bandwidth compressed LORAN isn't used - APRS is used for balloon tracking. LORAN isn't used. Option D (PACTOR III): Incorrect. PACTOR III isn't used for balloon tracking - APRS is used for real-time tracking. PACTOR III isn't for tracking.
Exam Tip
Balloon tracking technology = APRS. Think 'B'alloon 'T'racking = 'A'PRS. APRS (Automatic Packet Reporting System) is used for real-time tracking of balloons. Not FT8, not LORAN, not PACTOR III - just APRS.
Memory Aid
Balloon tracking technology = APRS. Think 'B'alloon 'T'racking = 'A'PRS. APRS (Automatic Packet Reporting System) is used for real-time tracking of balloons. Important for balloon tracking.
Real-World Example
Real-time tracking of balloons carrying amateur radio transmitters: APRS (Automatic Packet Reporting System) is used. The balloon transmits APRS packets with GPS position, and these are received and displayed on maps in real-time. This is the technology - APRS is used for balloon tracking.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E2D
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 E2D topic.