[DARARepeater] Thursday Night Group

[George]

Thursday Night Group 7pm NOT 6pm

Clean-up!!

Upcoming Activities

** License Exam Questions of the week

Projects

The Thursday Night Group will meet

Thursday, Oct 11 at 7:00 PM at the DARA Clubhouse.

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Things this week:  

1.        Thursday Night Group 7pm NOT 6pm

It was published in this month's RFCarrier that TNG meets at 6pm every
Thursday.  

This is INCORRECT. We meet at 7 PM.

 

2.        Clean-up!!

We need to clean house for Friday night Fall Harvest Chili Cook-off.

PLEASE cone and assist in cleaning the classroom and Training rooms

 

3.        Upcoming Activities 

Fall Harvest Chili Cook-off   Oct 12, 6pm at clubhouse

Microwave Update conference at the Holiday Inn in Fairborn October 11th - 14
http://www.microwaveupdate.org/ 

Northwest Ohio ARC Hamfest Oct 13.  Lima Ohio
https://www.nwoarc.com/hamfest-2018/ 

4.        ** License Exam Questions of the week

One question is drawn from each of the three question pools. Steve, AE8AT,
is providing these questions.  Thanks Steve

 

Answers are at the end of this email.

 

We received a question regarding the strange mix of letters and numbers that
begin each question.  Every exam question has a unique combination of
letter-number-letter-number.  The first letter is a T, G, or E to identify
the question pool: Technician, General, or Extra.  Next is a single number
representing the category, for example, category zero is safety in all three
exam pools.  The first letter-number pair is called the "sub-element".   The
second letter is a "group" containing related questions.  Example,
subelement G8 is Signals and Emissions, with group C of that sub-element
being Digital Emission Modes.  The questions are numbered sequentially:
G8C01, G8C02, and so forth always with a 2-digit number at the end.  The
question identity is included in case of a typo or some "help" from
autocorrect obscures either the question or the answer.  

 

This week's questions are all about Amplifiers!

 

T7C05 Why do most solid-state amateur radio transmitters reduce output power
as SWR increases?

A. To protect the output amplifier transistors

B. To comply with FCC rules on spectral purity

C. Because power supplies cannot supply enough current at high SWR

D. To improve the impedance match to the feed line

 

G7B11 For which of the following modes is a Class C power stage appropriate
for amplifying a modulated signal?

A. SSB

B. CW

C. AM

D. All of these choices are correct

 

E7B05 What can be done to prevent unwanted oscillations in an RF power
amplifier?

A. Tune the stage for maximum SWR

B. Tune both the input and output for maximum power

C. Install parasitic suppressors and/or neutralize the stage

D. Use a phase inverter in the output filter

5.        Projects

Bring something to work on.   What you building?

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 evening's.

Everyone is invited!!! 

 

 

Answers:

T7C05 = A.

G7B11 = B.

E7B05 = C.

 

 

 

 



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