Which statement regarding channel spacing...

Which statement regarding channel spacing and bandwidth is true?

No comments yet

Be the first to share your thoughts!

🔍 Key Concepts

• Bandwidth vs channel spacing – how the occupied frequency range of a signal affects how far apart channels must be to avoid interference • Typical maritime voice (radiotelephone) SSB bandwidth compared to NBDP/TELEX (narrow‑band direct printing) bandwidth • General rule: narrower signal → can channels be spaced closer together or farther apart?

💭 Think About

• Ask yourself: which type of transmission usually takes up more of the radio spectrum – spoken voice audio or a narrow, keyed text signal like TELEX? • If one mode uses a wider bandwidth, what does that imply about how far apart (in kHz) its channels should be placed to avoid overlap? • Look at each option: do the relationships between "greater/less bandwidth" and "greater/less channel spacing" line up with what you know about interference and adjacent‑channel protection?

✅ Before You Answer

• Be clear on which mode is narrow‑band (occupies fewer Hz/kHz) and which is wide‑band (occupies more). • Confirm that your choice makes physical sense: a mode using more bandwidth should not reasonably be able to use tighter (smaller) channel spacing without causing interference. • Before picking, mentally assign rough bandwidth sizes (e.g., a few hundred Hz vs a few kHz) to voice and TELEX and see which statement stays consistent.

🔍 Key Concepts

💭 Think About

✅ Before You Answer