Amateur ExtraE1F04
Which of the following geographic descriptions approximately describes "Line A"?
A
Answer
Extra class rules and station restrictions
Type
A
A line roughly parallel to and south of the border between the US and Canada
B
A line roughly parallel to and west of the US Atlantic coastline
C
A line roughly parallel to and north of the border between the US and Mexico
D
A line roughly parallel to and east of the US Pacific coastline
Answer Notes
"Line A" is a specific regulatory boundary defined by the FCC and the Canadian government to manage radio frequency interference across the border. It runs roughly parallel to, and south of, the US-Canada border.
Amateur stations located north of Line A (closer to Canada) are subject to certain frequency restrictions, primarily in the 420-430 MHz segment of the 70 cm band, to protect Canadian commercial and public safety operations. Options suggesting borders with Mexico or coastal lines are completely unrelated to this specific US-Canada frequency coordination agreement.
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Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?
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Amateur stations may not transmit in which of the following frequency segments if they are located in the contiguous 48 states and north of Line A?