PLEASE if you are having any COVID, RSV or FLU symptoms DO NOT come to the clubhouse.

TNG – Thursday, June 13, 2024

DARA Clubhouse, 6619 Bellefontaine Rd. Dayton, OH 45424.  The meeting begins around 7pm.

This week, Ralph Beach will give a presentation on the AirSpy DSP receiver and GNURadio. The presentation begins around 7:00pm

If anyone wants to or knows someone who might want to give a presentation at a future TNG, please let me know.

 Everyone is invited!!!

73,
de Mark, N8ME

License Exam Quiz #272
de Steve, AE8AT

We continue to focus on the retiring Extra questions this week.

E5B11 What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 50 ohms?

A. 14 degrees with the voltage lagging the current
B. 14 degrees with the voltage leading the current
C. 76 degrees with the voltage lagging the current
D. 76 degrees with the voltage leading the current

E6B03 What type of bias is required for an LED to emit light?

A. Reverse bias
B. Forward bias
C. Zero bias
D. Inductive bias

E7B03 Which of the following components form the output of a class D amplifier circuit?

A. A low-pass filter to remove switching signal components
B. A high-pass filter to compensate for low gain at low frequencies
C. A matched load resistor to prevent damage by switching transients
D. A temperature compensating load resistor to improve linearity

Answers:

E5B11 = B
E6B03 = B
E7B03 = A