What makes a CTCSS squelch work?

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Q

What makes a CTCSS squelch work?

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🔍 Key Concepts

• CTCSS (Continuous Tone-Coded Squelch System) purpose in radios • Difference between noise squelch and tone/code squelch • How receivers decide when to unmute (open) the speaker

💭 Think About

• Ask yourself: does CTCSS depend on random background noise, or on something intentionally added to the transmitted signal? • Think about what is actually sent along with the voice audio so that only selected radios open their squelch. • Which option describes a continuous, low-frequency element that riding under the voice, rather than a one-time digital handshaking process?

✅ Before You Answer

• Verify that CTCSS is an analog system used with FM radios, not a digital signaling scheme. • Confirm that CTCSS works by sending a continuous signal component below the normal voice frequency range. • Eliminate any choices that describe general background noise instead of a specific, added control signal.

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Question 1 of 20

Q

What makes a CTCSS squelch work?

A

Noise.

B

Tones .

C

Absence of noise.

D

Digital codes.

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Question 1 / 20doCBr7gmI4RYDUiWN8Hr

Question 1 of 20doCBr7gmI4RYDUiWN8Hr

What makes a CTCSS squelch work?

Back

Question 1 of 20

doCBr7gmI4RYDUiWN8Hr

Q

What makes a CTCSS squelch work?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• CTCSS (Continuous Tone-Coded Squelch System) purpose in radios • Difference between noise squelch and tone/code squelch • How receivers decide when to unmute (open) the speaker

💭 Think About

• Ask yourself: does CTCSS depend on random background noise, or on something intentionally added to the transmitted signal? • Think about what is actually sent along with the voice audio so that only selected radios open their squelch. • Which option describes a continuous, low-frequency element that riding under the voice, rather than a one-time digital handshaking process?

✅ Before You Answer

• Verify that CTCSS is an analog system used with FM radios, not a digital signaling scheme. • Confirm that CTCSS works by sending a continuous signal component below the normal voice frequency range. • Eliminate any choices that describe general background noise instead of a specific, added control signal.

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

Quick actions

— No credit card needed