[DARARepeater] Thursday Night Group

[George]

TNG – Affordable security cameras and software for monitoring/recording.

Projects 

** License Exam Questions – 221

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The Thursday Night Group will meet IN PERSON

Thursday, Jan 13, 2023 

Speakers and any announcements will start about 7:30.

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Things this week:  

TNG – Affordable security cameras and software for monitoring/recording.

Brian, N8IDQ, will be discussing affordable alternatives to IP security cameras and FOSS, Free and Open-Source Software, for monitoring/recording.

 

The rest of us can just swap stories and have fun.

 

Even though masks are not required feel free to wear a mask if you feel more comfortable.  There will be some wearing mask so you will not be the only one.

 

PLEASE if you are having any of the COVID symptoms DO NOT come to the clubhouse.


Projects 

Keep working on your projects at home OR bring them with you to TNG and do them there.   

** License Exam Questions – 221

The quiz topic this week is simply question 7C04 from each question pool.

 

T7C04 What reading on an SWR meter indicates a perfect impedance match between the antenna and the feed line?

A. 50:50

B. Zero

C. 1:1

D. Full Scale

 

G7C04 What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in some single sideband receivers?

A. RF oscillator

B. IF filter

C. Balanced modulator

D. Product detector

 

E7C04 How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

A. It introduces negative resistance to cancel the resistive part of impedance

B. It introduces transconductance to cancel the reactive part of impedance

C. It cancels the reactive part of the impedance and changes the resistive part to a desired value

D. Reactive currents are dissipated in matched resistances

 

For more information about B-Road Thursday Evening Group Projects…

Go to W8BI homepage ( <http://www.w8bi.org> http://www.w8bi.org) under Education, Thursday Group.

Or

Go to ( <https://sites.google.com/site/darathursdaynite/> https://sites.google.com/site/darathursdaynite)

There is a lot of information on this web site with additional content.

Hope to see you on Thursday evenings.

Everyone is invited!!! 

 

 

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Answers:

T7C04 = C

G7C04 = D

E7C04 = C

Quiz 221

 

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