TNG – Yaks n Racks & TV Antennas?

Projects

** License Exam Questions – 224

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The Thursday Night Group will meet IN PERSON

Thursday, Feb 2, 2023

Speakers and any announcements will start about 7:30.

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Things this week: 

TNG – Yaks n Racks & TV Antennas?

For of those who have not been to TNG in a while or ever we welcome you to stop by and see what’s going on.  This week, as always there will be a lot of YAKING,  what?? At any given Thursday there will be at least 5 different conversations going on.  Each with different topics.  A lot of weeks even when we have a speaker/topic there are 3 or more side chat going on.  We call it geeks night out. So stop by and see what you can learn or contribute. Yak, yak, yak.

Tom N8ZM, will continue working on the equipment Racks and figuring out what equipment to put where.  Please lens a hand.

George and Tom will also be talk about TV Antennas and testing different designs in the near future.  Who knows we might even design and build one soon.

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 or FLU 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 – 224

Quiz topic this week is the feed line to the antenna. You can probably guess the topic for the next quiz.

T7C07 What happens to power lost in a feed line?

A. It increases the SWR

B. It is radiated as harmonics

C. It is converted into heat

D. It distorts the signal

G9A02 What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

A. 25 and 30 ohms

B. 50 and 75 ohms

C. 80 and 100 ohms

D. 500 and 750 ohms

E4B09 What is indicated if the current reading on an RF ammeter placed in series with the antenna feed line of a transmitter increases as the transmitter is tuned to resonance?

A. There is possibly a short to ground in the feed line

B. The transmitter is not properly neutralized

C. There is an impedance mismatch between the antenna and feed line

D. There is more power going into the antenna

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

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

Or

Go to (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:

Answers:

T7C07 = C.

G9A02 = B.

E4B09 = D.

Quiz 224