No special presentation this week.

If anyone wants to or knows someone who might want to give a presentation at a future TNG or if you have a topic that you would like to see, please let me know.

Everyone is invited!!!

73,
de Mark, N8ME

License Exam Quiz #289
de Steve, AE8AT

Microwave Update just completed in British Columbia, Canada and inspired the quiz to turn toward the daylight side of our frequency allocations. (More on Microwave Update at https://microwaveupdate.org/)

T3A02 What is the effect of vegetation on UHF and microwave signals?

A. Knife-edge diffraction

B. Absorption

C. Amplification

D. Polarization rotation

G8C09 Which is true of mesh network microwave nodes?

A. Having more nodes increases signal strengths

B. If one node fails, a packet may still reach its target station via an alternate node

C. Links between two nodes in a network may have different frequencies and bandwidths

D. More nodes reduce overall microwave out of band interference

E9F05 What is microstrip?

A. Special shielding material designed for microwave frequencies

B. Miniature coax used for low power applications

C. Short lengths of coax mounted on printed circuit boards to minimize time delay between microwave circuits

D. Precision printed circuit conductors above a ground plane that provide constant impedance interconnects at microwave frequencies

Answers:

T3A02 = B

G8C09 = B

E9F05 = D