You look up a frequency table and all the...

Question 1 / 20Wo7IzBjaxvte4Fg7yi8i

Question 1 of 20Wo7IzBjaxvte4Fg7yi8i

You look up a frequency table and all the listings end in either .0 or .5 kHz. What kind of emission is used with these frequencies?

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Question 1 of 20

Wo7IzBjaxvte4Fg7yi8i

You look up a frequency table and all the listings end in either .0 or .5 kHz. What kind of emission is used with these frequencies?

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🔍 Key Concepts

• Emission designators (F1B, J2B, J3E, F3E, G3E) and what types of signals they represent • How frequency spacing (e.g., channels ending in .0 or .5 kHz) relates to narrow‑band vs wide‑band signals • Typical bandwidth requirements for data/telex (NBDP/SITOR) vs voice (SSB or FM) transmissions

💭 Think About

• Look at how closely spaced frequencies that end in .0 or .5 kHz would affect the type of signal you can transmit without overlapping adjacent channels. Which emission needs very narrow spacing? • Compare the normal bandwidth of SSB voice and FM voice with the bandwidth of telex/data signals. Which one fits better into a channel plan where every step is only 0.5 kHz? • Think about where you usually see SITOR/NBDP services versus where you see voice services. Which one is more likely to be assigned very tightly spaced channels?

✅ Before You Answer

• Verify the approximate bandwidth (in kHz) of SSB voice, FM voice, and NBDP/SITOR data signals. • Check which emissions (from the choices) are associated with narrow‑band direct‑printing (NBDP) or SITOR telex, and which are clearly labeled as voice. • Confirm whether FM voice emissions typically require far more than 0.5 kHz channel spacing.

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Question 1 of 20

You look up a frequency table and all the listings end in either .0 or .5 kHz. What kind of emission is used with these frequencies?

F1B / J2B SITOR ( NBDP )

J3E SSB Voice

F3E FM Voice

G3E FM Voice

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Question 1 / 20Wo7IzBjaxvte4Fg7yi8i

Question 1 of 20Wo7IzBjaxvte4Fg7yi8i

You look up a frequency table and all the listings end in either .0 or .5 kHz. What kind of emission is used with these frequencies?

Back

Question 1 of 20

Wo7IzBjaxvte4Fg7yi8i

You look up a frequency table and all the listings end in either .0 or .5 kHz. What kind of emission is used with these frequencies?

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