Deep Dive: E2B04
The correct answer is A: Color lines are sent sequentially. How color information is sent in analog SSTV is that color lines are sent sequentially. SSTV sends color information line by line, one color at a time. For amateur radio operators, this is important for SSTV operation. Understanding this helps when operating SSTV.
Why Other Answers Are Wrong
Option B: Incorrect. Color information on 2.8 kHz subcarrier isn't how SSTV works - SSTV sends color lines sequentially, not on a subcarrier. Subcarrier isn't used. Option C: Incorrect. Color burst at end of each line isn't how SSTV works - SSTV sends color lines sequentially, not color bursts. Color burst isn't used. Option D: Incorrect. Color amplitude modulated on FM intensity signal isn't how SSTV works - SSTV sends color lines sequentially. AM on FM isn't used.
Exam Tip
SSTV color information = color lines sent sequentially. Think 'S'STV 'C'olor = 'S'equential 'C'olor lines. SSTV sends color information line by line, one color at a time. Not subcarrier, not color burst, not AM on FM - just sequential color lines.
Memory Aid
SSTV color information = color lines sent sequentially. Think 'S'STV 'C'olor = 'S'equential. SSTV sends color information line by line, one color at a time. Important for SSTV operation.
Real-World Example
Color information in analog SSTV: Color lines are sent sequentially. For example, red lines are sent, then green lines, then blue lines. This is different from fast-scan TV which uses simultaneous color. SSTV takes longer because colors are sent one at a time. This is how color information is sent - sequentially.
Source & Coverage
Question Pool: 2024-2028 Question Pool
Subelement: E2B
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 E2B topic.