TNG - Thursday, November 9

DARA Clubhouse, 6619 Bellefontaine Rd. Dayton, OH 45424.  The meeting begins around 7pm. Presentations (if any) begin at 7:30pm.

Jeremy Hong will give a presentation on the Raspberry Pi 5.

I have received a request to Zoom Jeremy’s presentation. Is there anyone who can help with this?

DARA / DMA Single Board Computer SIG

The SBC SIG will meet this Saturday, 11/11 2:00pm at the clubhouse.

Everyone is invited!!!

LICENSE QUIZ #254

de Steve, AE8AT

This week, we have feedline related questions including the beloved Smith chart.

T9B05 What happens as the frequency of a signal in coaxial cable is increased?

A. The characteristic impedance decreases

B. The loss decreases

C. The characteristic impedance increases

D. The loss increases

G9A05 How does the attenuation of coaxial cable change with increasing frequency?

A. Attenuation is independent of frequency

B. Attenuation increases

C. Attenuation decreases

D. Attenuation follows Marconi’s Law of Attenuation

E9G11 How are the wavelength scales on a Smith chart calibrated?

A. In fractions of transmission line electrical frequency

B. In fractions of transmission line electrical wavelength

C. In fractions of antenna electrical wavelength

D. In fractions of antenna electrical frequency

73,

de Mark, N8ME

Quiz Answers

T9B05 = D.
G9A05 = B.
E9G11 = B.