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Question 24 - Law E-book

  • Dan
  • Topic Author

Dan created the topic: Question 24 - Law E-book

Hello,

Can i please get some help with the following question in the E-law book -

Q24, page 142

What is the coverage of NORFOLK ISLAND NDB at A050 over SEA during the DAY?

A. 260NM
B. 300NM
C. 120NM
D. 60NM

I chose 'B', however the answer in the book comes back as 'A'... Im not sure how answer A is correct, please see the ERSA entry page attached.

Thank you for your help.
#1
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bobtait replied the topic: Question 24 - Law E-book

OK. I see it's 260nm over land and 300nm over water. Obviously the over water figure is the one to use, it would be a bit difficult to arrive at Norfolk Island over land! I'll amend the answer. (I wonder why they would publish an over land rated coverage for an island? Interesting.
#2

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  • umueller

umueller replied the topic: Question 24 - Law E-book

Isn't 260 the frequency (260kHz)?
I read OW300 (Over Water 300NM), OW HN120 (Over Water Night Hours 120NM)
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bobtait replied the topic: Question 24 - Law E-book

Opps! You are correct. The rated coverage over water should be 300nm.
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bobtait replied the topic: Question 24 - Law E-book

Opps! You are correct. The rated coverage over water should be 300nm. I note it has been amended in the current print of the book. The answer is (b).
#5
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