Deep Dive: E2E12
The correct answer is A: ALE constantly scans a list of frequencies, activating the radio when the designated call sign is received. How do ALE stations establish contact is that ALE constantly scans a list of frequencies, activating the radio when the designated call sign is received. ALE (Automatic Link Establishment) scans frequencies and activates when called. For amateur radio operators, this is important for ALE operation. Understanding this helps when using ALE.
Why Other Answers Are Wrong
Option B: Incorrect. ALE radios don't monitor an internet site - they scan frequencies and activate when called. Internet monitoring isn't how ALE works. Option C: Incorrect. ALE radios don't send constant tone codes - they scan frequencies and activate when called. Constant tone codes isn't how ALE works. Option D: Incorrect. ALE radios don't activate on backscatter echo - they scan frequencies and activate when called. Backscatter echo isn't how ALE works.
Exam Tip
ALE contact establishment = constantly scans frequencies, activates when designated call sign received. Think 'A'LE = 'A'utomatically 'L'inks by 'E'xchanging calls. ALE scans frequencies and activates when called. Not internet monitoring, not constant tones, not backscatter - just scanning and activating when called.
Memory Aid
ALE contact establishment = constantly scans frequencies, activates when designated call sign received. Think 'A'LE = 'S'can and 'A'ctivate. ALE scans frequencies and activates when called. Important for ALE operation.
Real-World Example
ALE (Automatic Link Establishment) stations: They constantly scan a list of frequencies, and when the designated call sign is received, the radio activates and establishes contact. This allows automatic link establishment without manual frequency selection. This is how ALE works - scanning frequencies and activating when called.
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.