You are able to hear signals in the SITOR...

Question 1 / 20axFh2OG4LhBI6oGWWMHp

Question 1 of 20axFh2OG4LhBI6oGWWMHp

You are able to hear signals in the SITOR (NBDP) mode but not in the voice/SSB mode. What is the most likely cause?

Back

Question 1 of 20

axFh2OG4LhBI6oGWWMHp

You are able to hear signals in the SITOR (NBDP) mode but not in the voice/SSB mode. What is the most likely cause?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Difference between RF (radio frequency) stages and audio stages in a receiver • How SITOR/NBDP demodulation uses narrow filters and a terminal, versus voice/SSB, which requires the audio chain and BFO for intelligible sound • What a failure in the RF amplifier would affect compared to failures in audio-related components

💭 Think About

• If you can copy SITOR/NBDP data but cannot hear voice, which parts of the receiver chain must still be working? • Which component failure would affect both data and voice, and which would only affect what you hear as audio? • How does a defective audio amplifier or audio‑related filter show up in terms of what you can or cannot monitor with your ears?

✅ Before You Answer

• Identify which stages are common to both SITOR and voice reception (antenna, RF amp, mixer, IF stages, etc.) • Identify which stages are used differently or bypassed when decoding SITOR/NBDP versus listening to voice/SSB (audio amplifier, speaker, certain filters) • Check which single failed component listed would still allow SITOR/NBDP decoding but prevent you from copying voice by ear

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

Quick actions

— No credit card needed

Question 1 of 20

You are able to hear signals in the SITOR (NBDP) mode but not in the voice/SSB mode. What is the most likely cause?

The B.F.O. circuit has failed.

The audio amplifier is defective.

The 2.8 kHz filter has become defective.

The R.F. amplifier has failed.

Loading interactive features...

Question 1 / 20axFh2OG4LhBI6oGWWMHp

Question 1 of 20axFh2OG4LhBI6oGWWMHp

You are able to hear signals in the SITOR (NBDP) mode but not in the voice/SSB mode. What is the most likely cause?

Back

Question 1 of 20

axFh2OG4LhBI6oGWWMHp

You are able to hear signals in the SITOR (NBDP) mode but not in the voice/SSB mode. What is the most likely cause?

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