How often must a radiotelegraph station...

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Question 1 of 20VR47wbKLgaJQOq2MXEdY

How often must a radiotelegraph station transmit its call sign when a transmission is maintained for more than 20 minutes in the band 405-525 kHz?

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Question 1 of 20

VR47wbKLgaJQOq2MXEdY

How often must a radiotelegraph station transmit its call sign when a transmission is maintained for more than 20 minutes in the band 405-525 kHz?

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🔍 Key Concepts

• Radiotelegraph station identification rules in the MF band (405–525 kHz) • Difference between a fixed time interval requirement and a conditional exception (such as during public correspondence) • How requirements may change when a transmission exceeds a certain duration (more than 20 minutes)

💭 Think About

• Look for which option mentions a special condition that might apply when public correspondence (traffic with the public) is in progress. • Decide whether the rule is likely to require more frequent identification (shorter intervals) or allows longer gaps between identifications for long transmissions. • Ask yourself: does the regulation specify a fixed interval only, or does it allow an exception when you’re handling continuous traffic?

✅ Before You Answer

• Verify which choice references an exception for public correspondence and compare it to those that do not mention any exception. • Confirm that the rule is specifically about transmissions lasting more than 20 minutes in the 405–525 kHz band, not general VHF or other bands. • Check that the interval in the correct option is short enough to ensure regular station identification during a long continuous transmission.

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Question 1 of 20VR47wbKLgaJQOq2MXEdY

How often must a radiotelegraph station transmit its call sign when a transmission is maintained for more than 20 minutes in the band 405-525 kHz?

Back

Question 1 of 20

VR47wbKLgaJQOq2MXEdY

How often must a radiotelegraph station transmit its call sign when a transmission is maintained for more than 20 minutes in the band 405-525 kHz?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed