Logging in (or registering) will help the system to select questions that you need to focus on.

E4C15

What is usually the primary source of noise that is heard from an HF receiver with an antenna connected?

Select	Answer
A	Atmospheric noise
B	Induction motor noise
C	Detector noise
D	Receiver front-end noise

---

Hamboozler: Copyright 2007 Four Batons Technology. All rights reserved.
By continuing to use this site, you are agreeing to the Privacy Policy and Terms of Service.
Contact Us