When engaging in voice communications via an...

When engaging in voice communications via an...

Question 1 of 27070WXlq78IMlB61lf1TFqoV

When engaging in voice communications via an INMARSAT-B terminal, what techniques are used?

Question 1 of 27070

Q

When engaging in voice communications via an INMARSAT-B terminal, what techniques are used?

🔍 Key Concepts

• INMARSAT-B digital voice operation and channel characteristics • Role of CODECs (coder/decoders) in digital voice systems • Difference between compressing vs expanding a voice signal in a communications link

💭 Think About

• Think about whether INMARSAT-B carries voice as pure analog audio or as a digital signal over a limited satellite channel. • Consider what has to happen to a voice signal before it can be efficiently transmitted over a fixed, relatively narrow satellite bandwidth. • At the receiving end, what processing step logically pairs with whatever was done to the voice signal at the transmitting end?

✅ Before You Answer

• Verify which of the options describe digital signal processing steps commonly used in satellite voice systems. • Check if any option describes an action that would normally be a manual operator function vs an automatic system function in INMARSAT-B. • Ask yourself which options describe processes that would logically occur at both ends of a digital voice link (transmit and receive).