[DARARepeater] Thursday Night Group

[George]

Snow and Ice

HF - UHF Antenna Analyzer UPDATE  

Projects

** License Exam Questions of the week

The Thursday Night Group will meet

Thursday, JAN 17 at 7:00 pm at the DARA Clubhouse.

------------------------------------------------------

Things this week:  

 

1.        Snow and Ice

Bad weather is forecast for the next few days.  If you are driving be safe
and prepared.

2.        HF - UHF Antenna Analyzer UPDATE  

Phil, and maybe Rubin, will give an update on this project.

3.        ** 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,
sub-element 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.  

 

The theme this week is satellites.  The General question pool did not have a
specific question, so instead the quiz contains a question on an antenna
often used to contact satellites (and less lofty stations).

 

T8B07 With regard to satellite communications, what is Doppler shift?

A. A change in the satellite orbit

B. A mode where the satellite receives signals on one band and transmits on
another

C. An observed change in signal frequency caused by relative motion between
the satellite and the earth station

D. A special digital communications mode for some satellites

 

 

G9C01 Which of the following would increase the bandwidth of a Yagi antenna?

A. Larger diameter elements

B. Closer element spacing

C. Loading coils in series with the element

D. Tapered-diameter elements

 

 

E2A06 On what band would a satellite receive signals if it were operating in
mode U/V?

A. 435 MHz - 438 MHz

B. 144 MHz - 146 MHz

C. 50.0 MHz - 50.2 MHz

D. 29.5 MHz - 29.7 MHz

 

4.        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, JAN 3 at 7:00 PM.

Everyone is invited!!! 

 

 

Answers:

T8B07 = C.

G9C01 = A.

E2A06 = A.

 

Quiz 23



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