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

TNG – Thursday, June 6  2024

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

This week we are back to anarchy - no formal presentation. Next week, Ralph Beach will give a presentation on the AirSpy DSP receiver.

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!!!

It's Back!!!

Licensing Quiz 271

de Steve, KE8AT

The Extra question pool will refresh at the end of June, so this quiz is a look at some of the questions being retired! I wish I could retire…

E2C02 Which of the following best describes the term “self-spotting” in connection with HF contest operating?

A. The often-prohibited practice of posting one’s own call sign and frequency on a spotting network

B. The acceptable practice of manually posting the call signs of stations on a spotting network

C. A manual technique for rapidly zero beating or tuning to a station’s frequency before calling that station

D. An automatic method for rapidly zero beating or tuning to a station’s frequency before calling that station

E3C14 Why does the radio-path horizon distance exceed the geometric horizon?

A. E-region skip

B. D-region skip

C. Due to the Doppler effect

D. Downward bending due to density variations in the atmosphere

E4C06 A CW receiver with the AGC off has an equivalent input noise power density of -174 dBm/Hz. What would be the level of an unmodulated carrier input to this receiver that would yield an audio output SNR of 0 dB in a 400 Hz noise bandwidth?

A. -174 dBm

B. -164 dBm

C. -155 dBm

D. -148 dBm

Answers:

E2C02 = A

E3C14 = D

E4C06 = D

73,

Mark, N8ME