Search RFCafe.com                           
      More Than 17,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns


 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
 Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
RF Symbols Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits

Axiom Test Equipment - RF Cafe

Anritsu Test Equipment - RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Windfreak Technologies SynthHD PRO - RF Cafe

Wireless Communications Fundamentals
RF Cafe Quiz #6

RF Engineering Quizzes - RF CafeAll RF Cafe Quizzes make great fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job. Bonne chance, Viel Glück, がんばろう, buena suerte, удачи, in bocca al lupo, 행운을 빕니다, ádh mór, בהצלחה, lykke til, 祝你好運. Well, you know what I mean: Good luck!

Click here for the complete list of RF Cafe Quizzes.

Note: Some material based on books have quoted passages.

 

1. Which of the following WLAN standards is on a different frequency band than the others?

a) 802.11a

b) 802.11b

c) 802.11g

d) 802.11n

 

 

2. What does the term "ruggedness" refer to in wireless power amplifiers?

a) Ability to withstand thermal stress

b) Ability to withstand mechanical stress

c) Ability to withstand load mismatch

d) All the above

 

 

3. Which FCC regulation governs the unlicensed ISM band?

a) Part 15

b) Chapter 11

c) 815.00

d) Subsection 11

 

 

4. In which semiconductor technology are the majority of cellphone PAs manufactured?

a) Si/SiCMOS

b) GaN

c) GaAs/InGaP

d) SiGe

 

 

5. What is a major advantage of Low Temperature Co-fired Ceramic (LTCC) substrates?

a) Densely integrated passive components

b) Better thermal dissipation

c) Lower bill of materials

d) All the above

 

 

6. Which phone standard supports the highest data rate?

a) iDEN

b) GPRS

c) EDGE

d) GSM

 

 

7. Which component is typically not part of a front-end module (FEM)?

a) Power amplifier

b) Filter

c) Switch

d) Controller

 

 

8. Which two systems are most likely to experience concurrent operation problems?

a) WLAN + GSM

b) Bluetooth + WLAN

c) GSM + W-CDMA

d) Bluetooth + AMPS

 

 

9. An isolator is typically required at the output of the PA for which transmitter system

a) EDGE

b) Bluetooth

c) GSM

d) CDMA/W-CDMA

 

 

10. What is the commonly claimed nominal operational range for Bluetooth?

a) 10 m

b) 32.8 ft

c) 1.057x10-15 lt-yr

d) All the above

 

 

Need some help? Click here for the answers and explanations.

 

 

Posted April 9, 2021

Windfreak Technologies SynthHD PRO - RF Cafe
LadyBug RF Power Sensors

KR Electronics (RF Filters) - RF Cafe

Anatech Electronics RF Microwave Filters - RF Cafe