Communications Engineering Coaching Materials: Section 4 Module 8

This is the Section 4 Module 8 of the compiled Communications Coaching Materials taken from different sources including but not limited to Communications books, past Board Exams Questions, Journals and the Internet.

Communications Coaching Materials: Section 4 Module 8

This is the Section 4 Module 8 of the compiled Communications Coaching Materials taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies (EST), Communications Books, Journals and other Communications References. This particular Coaching Notes in Communications Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Communications Engineering Coaching: Section 4 Module 8

true 3G

UMTS

blue laser

5 times faster than infrared

most accurate

BPRZ

less dispersion window 3

1550nm

western Europe

pal b/g

Europe digital

DBV-T

d2

SMPT 244

cassegrain

elliptical

trap

more than 1 freq... LC

pillbox

sandwich

do 88

3W fm

do 88

1W am

firewire

IEEE 1394

ATM

53 byte

decay time picture tube

5ms

100ire

pure white

0 IRE

blanking lvl

vertical lines

42

42bis "bis"

encore

laser

2nm

led

30nm

damage the living tissue

shorter wavelength

green LED

940nm

damage the cornea

longer wavelength

average loss in optical fiber

.15dB

humming code

4 info 3 correction

SUF per MHz

500k

bit error rate sat comm

1 in 10³

rule of thumb obstruction

40 %

rotating (robot)

revolute

shielded metal arc welding

SMAW

gas metal arc welding

GMAW

metal inert gas

MIG

commercial robot

pleo

weld interval

5

squeeze

1 sec

hold

1 sec

weld

1 ~ 10 sec

pentode with sharp pulses... free running..

phantastron

sony's robot

qrio

solid object

6 dof

scara

4 dof

cellular service

1984

ip was created

1981

aperture settings for camera lenz

f stop

single copper wire SHDSL

2.3Mbps

iridium sat

80km

no of mastergroup in jumbogroup

6

human hearing

a weighted

telephony

c weighted

commercial

18mins

news

30mins

2400bps modem class 4

2900bps

epitaxially green

4

more rugged cable

10k N

lightweight

100N

large core diameter

200micro

DVC error correction

reed solomon

high end

D1

high sensitivity

PMT

bit software

j. tukey

PCM

alec reeves

stacked collinear antenna.. half wave dipoles spaced 1/2 wavelengths

broadside array

internal processing speed of 2nd gen computers

millionths of a second

internal processing speed of 3rd gen computers

billionths of a second

pleasing to the eye print of all printers

daisy wheel

height of GPS

 

accuracy of GPS for civilian

100m

accuracy of GPS for military

16m

sonnet sts-1

51.84

10 lux

1 foot candle

core diameter of step index multi-mode..

0.2 angstrom

luminance Y combination

30% red, 59% green, 11% blue

"try" to send at baseband network cable

contention

"sending" at baseband network cable

collision

dvd laser diodes wavelength

650nm

short term frequency deviation in FM broadcasting

residual FM

GPS orbital period

12 hrs

location of a satellite

ephemeris

is-95

9.6kbps

cutoff wavelength of single mode fiber

1100 - 1280

efficiency of a class 4 modem

120.. %

HDTV aspect ratio

16;9

mpeg 4 uses what format

DivX

gain of an isotropic antenna

1.66

cordless phones beyond 300ft uses how much power

10w

citizen frequency band

26.965 - 27. 405 MHz

fastest optical receiver

apd

allows tel to talk to computers connected to internet

H 323

4 wire gigabit Ethernet

1000base T

determine the direction of a sound source

precedence effect

intended to be the 4th generation in cellular communications

ultra mobile broadband (UMB)

a model of diffuse reflection

lambertian reflection

method used to increase antenna gain and directivity

antenna stacking

4b/5b encoding

block coding

IF

AM

455khz

FM

10.7mhz

video

45.25mhz

sound

41.25mhz

radar

30mhz

Complete List of Communications Engineering Coaching Materials


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