Most receiver hiss is due to:

Question 1 / 27070RCpVSpYHIbTGvLZVoG5y

Question 1 of 27070RCpVSpYHIbTGvLZVoG5y

Back

Question 1 of 27070

Q

Most receiver hiss is due to:

🔍 Key Concepts

• Receiver noise sources in superheterodyne receivers • Role of the first RF / input stages compared to later audio-frequency (AF) stages • How amplification early in the chain affects total noise heard in the speaker

💭 Think About

• Which stage’s noise will be amplified the most by ALL the following stages, and therefore be heard as hiss? • Is hiss more closely associated with RF/IF stages or with audio-frequency amplification and detection? • Would a control related to oscillation/regeneration normally be the primary cause of typical background hiss in a correctly operating receiver?

✅ Before You Answer

• Identify which stage is earliest in the signal chain among the options • Think about which choice describes a normal internal noise source, not a fault condition • Ask whether the remaining options would usually cause distortion/instability rather than steady broadband hiss

Question 1 of 27070

Q

Most receiver hiss is due to:

A

Noise generated in the first detector

B

Noise generated in the first AF amplifier

C

Faulty regeneration control

D

None of the above

Question 1 / 27070RCpVSpYHIbTGvLZVoG5y

Question 1 of 27070RCpVSpYHIbTGvLZVoG5y

Most receiver hiss is due to:

Back

Question 1 of 27070

Q

Most receiver hiss is due to:

🔍 Key Concepts

• Receiver noise sources in superheterodyne receivers • Role of the first RF / input stages compared to later audio-frequency (AF) stages • How amplification early in the chain affects total noise heard in the speaker

💭 Think About

• Which stage’s noise will be amplified the most by ALL the following stages, and therefore be heard as hiss? • Is hiss more closely associated with RF/IF stages or with audio-frequency amplification and detection? • Would a control related to oscillation/regeneration normally be the primary cause of typical background hiss in a correctly operating receiver?

✅ Before You Answer

• Identify which stage is earliest in the signal chain among the options • Think about which choice describes a normal internal noise source, not a fault condition • Ask whether the remaining options would usually cause distortion/instability rather than steady broadband hiss