Shared Flashcard Set

Details

CCT4 Mod 5.1 T/Shooting to 1st active
CCT4 Mod 5.1 T/Shooting to 1st active
119
Communication
Professional
03/28/2011

Additional Communication Flashcards

 


 

Cards

Term

What does CLI stand for.

 

a. Cumulative level Index

b. Cumulative Leakage Index

c. Common level Index

d. Communications Link Index

Definition
b. Cumulative Leakage Index
Term

CLI figure of Merit per the FCC

is

 

a. 62 or more

b. 64 or more

c. 64 or less

d. 6 or less

Definition

64 or less

Term

The FCC requires  CLI Logs to be held for how long.

 

 

a. 2 months

b. 36 months

c. 5 years

d. 2 years

Definition
d. 2 years
Term
CPD stands for what
Definition

Common Path Distortion

is a return path impairment that can have a severe effect on return path signal quality.

Term

Anything greater than ___ will show up as a Beat in analog picture.

 

A. 30dB

B. -30dB

C. 30dBmV

D. -30dBmV

Definition

B. -30dB

Term

FCC regulations regarding signal leakage are outlined in the Code of Federal Regulations.

 

a. Regulation tech. Manual 88.1, Part 76 Cable

b. Title 47, telecommunication, Part 77

c. FCC Manual 70, title 88

d. Title 47, Telecommunication, Part 76 cable TV Service

Definition
d. Title 47, Telecommunication, Part 76 cable TV Service
Term

True/False

CLI Which is non-mathematical value derived for the number and severity of leaks in the cable system.

Definition

false

CLI Which is mathematical value derived for the number and severity of leaks in the cable system

Term

CLI leakage test are conducted how often?

 

a. once every 12 months

b. once every 2 years

c. when aircraft can't navigate

d. four times a every year

Definition

a. once every 12 months (annually)

Term

What is the Freq. differents between the video and the audio in a 6Mhz channel.

 

a. 4.2Mhz

b. 4.5Mhz

c. 4.5hz

d. 4.2hz

Definition

b. 4.5Mhz

Term

Unwanted signals entering the network can create a number of ___ patterns on the TV screen. Can be cause by Ham radio and other broadcast AM carriers.

 

a. Glosting

b. Cross Modulations

c. Beats

d. all the above

 

 

Definition

c. Beats

Term

With 100' of RG-6 Drop Cable what would the max. loss be (for test answer)?

 

A. 3db

B. 4db

C. 5db

D. 6db

Definition

D. 6db

Term

Carrier-to-beat ratios greater than ____ are far enough below desired carrier level to be of little concern to the average viewer.

 

a. -57dB

b. 57dB

c. 30dB

d. -30dB

Definition

b. 57dB

Term

What Modulation typically form a pattern of diagonal lines on analog video picture.

 

a. FM carriers

b. ghosting carriers

c. AM Carries

d. both a and b

 

Definition
c. AM Carries
Term

What Modulation can cause audio problems.

 

a. AM Carrier

b. leading ghosting

c. FM Carrier

d. following ghost

Definition

c. FM Carrier

Term

If you are checking a cust. drop for ingress with you meter. What would be a passing.

 

a. -55dBmV

b. -45dBmV

c. -35dBmV

d. -25dBmV

 

Definition

d. -25dBmV

The correct answer is -30dBmV but because -25dBmV is passing that the answer.

Term

Appears when ingress allows a locally broadcast TV channel's signal to enter the TV along with the channel's signal supplied by the network.

 

a. leading ghost

b. following ghost

c. beats

d. Co-Channel interference

 

Definition

a. leading ghost

Term

Is usually caused by a reflection the cable system caused by poor return loss at the relecting device and poor directivity at the tap or device feeding the set.

 

a. beats

b. co-channel interference

c. leading ghost

d. following ghost

 

Definition
d. following ghost
Term

While watching TV you see a leading Ghost. The Ghosting appears on what side. Enter into cable plant can be caused by damaged coax in the system.

 

a. top side

b. left side

c. right

d. you can't see the ghost

 

Definition

b. left side

Term

While watching TV you see a following Ghost. The Ghosting appears on what side. Can be caused by a reflected signal.

 

a. left side

b. middle side

c. right side

d. top side

 

 

Definition

c. right side

Term

You will not see a ghost whose level is more than _____ below  the desired  carrier.

 

a. 10 dB

b. 25 dB

c. 27.5 dB

d. 30 dB

Definition

d. 30 dB

Term

A method of reception using an RF current of the proper magnitude and phase relation so the received voltage is of the same nature as the original wave.

 

a. co-channels interference

b. Zero Voltage

c. voltage equalizer

d. Zero Beat

Definition

d. Zero Beat

Term

If there were no offset,, the two stations would be very close, but not exactly the same in frequency, causing what is called a _______?

 

a. Zero Beat

b. Offset bandwidth

c. Freq. off beat

d. Off Channel Zone

Definition

a. Zero Beat

Term

What can cause return path interference?

 

a. Amateur Radio

b. electrical motor

c. ghosting

d. both a and b

Definition

d. both a and b

Term

What is the return specturm?

 

a. 52Mhz to 133Mhz

b. channel 2, 3, and 4

c. 5hz to 42Mhz

d. 5Mhz to 42Mhz

Definition
d. 5Mhz to 42Mhz
Term

Thermal Noise can be cause by one of the following.

 

a. Electrical engine

b. low signal

c. bad tap plate

d. CB radio

 

Definition
a. Electrical engine
Term

True / false

Voltage will not increases or decreases, producing more or less noise in a CATV system?

 

Definition

false

Voltage also increase or decreases, producing more or less noise.

Term

In C/N, We know that at he input to this amplifier we have noise at a level of ____.

 

a. 59.2 dBmV

b. -59.2 dBmV

c. 30 dBmV

d. -30 dBmV

Definition

b. -59.2 dBmV

Term

The 10 dB of  noise, which was added by the amplifier, is defined as the amplifier's _______.

 

a. thermal noise

b. noise figure "NF"

c. Carrier-To-Noise

d. NTSC

Definition

b. noise figure "NF"

Term

Carries Comcast traffic from CRAN to CRAN. Comcast's Private Backbone.

 

A.VPN

B.Cbone

C.Internet Backbone

D.PAT

Definition

B.Cbone

Term

Used to provide regions with access to national HSD peers & to global Internet access via one or more transit providers.

 

A.VPN

B.Internet

C.Internet Backbone

D.WAN

Definition

C.Internet Backbone

Term

3 parts of Fiber Optic Cable:

 

A.Core, Fiber, Sheathing
B.Fiber, Core, Coating
C.Cladding, Center Conductor, Coating
D. Coating, Cladding, Core

Definition

D. Coating, Cladding, Core

Term

What kind of cable would CATVR be?

 

a. residential cable

b. return cable

c. riser cable

d. high resistance cable

 

Definition

c. riser cable

Term

What kind of cable is CATVP?

 

a. VIP cable

b. plenum

c. plum cable

d. residential

Definition

b. plenum

Term

What kind of cable is CATV?

 

a. riser cable

b. residential cable

c. plenum cable

d. general purpose cable

 

 

Definition

d. general purpose cable

Term

What kind of cable is CATVX?

 

a. general purpose

b. VIP cable

c. low lose cable

d. residential cable

Definition

d. residential cable

Term

If you as installer, need to install a building with five floor in it. You need to come from the top floor and run the cable down a few floor down in the office you're installing to day. What kind of Cable do you need to use?

 

a. CATVX

b. CATVR

c. CATVP

d. any of the above will do

Definition

b. CATVR

Term

If the input level (in dBmV) numerically equals an amplifier's NF, the output of C/N will always be?

 

a. -30 dB

b. 59.2 dBmV

c. 57 dBmV

d. 59.2 dB

Definition

d. 59.2 dB

Term

If we raised the input level 2 dB above the noise figure and the input and output C/N improveed by?

 

a. 2.7

b. 4

c. 2

d. 5.4

Definition

c. 2

Term

true / false

C/N at the output of a single amplifier is always better than that at the input by an amount equal to the amplifier's NF.

Definition

false

C/N at the output of a single amplifier is always worse than that at the input by an amount equal to the amplifier's NF.

Term

Hey, if a piece of cable can create noise, imagine what an active device can do! The 10dB of noise, which was added by the amplifier, is defined as the amplifier's?

 

a. electrical noise

b. Amplifier noise

c. Cable noise

d. noise figure

Definition

d. noise figure

Term

We know that at the input to this amplifier we have noise at a level of _____?

 

a. 59.2 dBmV

b. -59.2 dBmV

c. 25.1 db

d. -59.2 dB

Definition

b. -59.2 dBmV

Term

The standards for (FCC)Carrier to Noise is?

 

a. 43 dB

b. 48 dB

c. 48 dBmV

d. 43 dBmV

Definition

a. 43 dB

Term

The standards for Comcast Carrier to Noise is?

 

a. 43 dB

b. 46 dB

c. 43 dBmV

d. 44 dB

Definition
b. 46 dB
Term

Cross Modulation XMOD is literally the?

 

a. ghosting of the same channel into each other

b. crossing of modulation from one channel to another

c. hum of electrical motor into one channel

d. both a and c

Definition
b. crossing of modulation from one channel to another
Term

Cross Modulation typically manifests itself as a

 

a. horizontal bar and ghosting images that sweep throught the back of the affected channel

b. vertical and horizontal bar and ghosting images that sweep throught the back of the affected channel

c. vertical hum bars that sweeps throught the affected channel

d. vertical bar and ghosting images that sweep throught the back of the affected channel

Definition
d. vertical bar and ghosting images that sweep throught the back of the affected channel
Term

What the five tyupes of system maps.

 

a. base, strand, design, plant maps, As built

b. stand, design, plant maps,  amplified schematics or tree, as built maps

c. base, strand, design, amplified schematics or tree, as build maps

d. plant, strand, design, amplified schematics or tree, as build maps

Definition
c. base, strand, design, amplified schematics or tree, as build maps
Term

The cumulative effect of return path distortions added to the signal at various locations in the coaxial portion of the network.

 

a. tunnelling affect

b. whirl-wind affect

c. funneling affect

d. cumulative distortion affect

Definition

c. funneling affect

Term

What does QAM stand for?

 

a. Quadrature Amplitube Modulation

b. Query Amplitude Media

c. Query Amplitude Modulation

d. Quadrature Amplitude Media

Definition

a. Quadrature Amplitube Modulation

Term

5-42 MHz is used for?

 

a. forward

b. discovery channel

c. return

d. air traffic control

Definition

c. return

Term

Individual (discrete) 3rd order beats in todays systems contraining over ____ channels are seldom the cause of interference.

 

a. 57

b. 61

c. 40

d. 77

Definition

c. 40

Term

______ measures the ration of the error power to the average power in an ideal QAM sgnal.

 

a. BER

b. MER

c. forward error correction

d. noise power ration

Definition

b. MER

Term

When ingress allow a locally broadcast channel's signal to enter the tv along with the channels signal supplied by the network is called?

 

a. following ghost

b. co-channel interference

c. leading ghost

d. return path interfenence

Definition

c. leading ghost

Term

What is the FCC standard for leakage limits for the frequencies 54-216MHz.

 

a. 20mV per meter @ 3 meters 10 ft

15mV meter @ 30 meters 100ft

b. 24mV per meter @ 3 meters 10ft

10mV meter @ 30 meter 100ft

c. 30mV per meter @ 3 meters 10ft

19mV per meter @ 33 meters 200ft

 

 

Definition

a. 20mV per meter @ 3 meters 10 ft

    15mV meter @ 30 meters 100ft

Term
The TV carriers on a cable system are spaced at 6 MHz increments, causing a majority of the composite third order (CTB)produced to fall within 30KHz of a TV carrier.On which two channels is this not the case?
a. 2-3b. 6-7c. 4-5d. 5-6
Definition

d. 5-6

Term

QAM

 

A. A Digital Modulation that cause a 6MHz to use by more then one channel but by two only.

B. Digital modulation scheme that changes phase and the amplitude.

c. Modulation that help cut out noise on the Return path for modem

d. A carrier modulation that cause better over all signal

 

Definition

B. Digital modulation scheme that changes phase and the amplitude.

Term

Appear as two horizotal bar moving from the bottom to the top of the picture.

 

a. 60 cycle

b. 120 cycle

c. 240 cycle

d. both a an b

 

Definition
b. 120 cycle
Term

What is considered acceptable carrier-to-hum ratio?

 

a. 40dB or less (<3% hum)

b. 30dB or better (<3% hum)

c. 40dB or better (<5% hum)

d. 30dB or less (<5% hum)

Definition

b. 30dB or better (<3% hum)

 

for hum modulation

Term

Appear as one horizotal bar moving from the bottom to the top of the picture.

 

a. 60 cycle

b. 120 cycle

c. 240 cycle

d. both a an b

Definition
a. 60 cycle
Term

The primary source of hum mudulation today is the?

 

a. high power A/C voltage

b. low voltaged DC power supply

c. power passing chokes

d. damaged power lines

Definition

c. power passing chokes used in passive devices

Term

Delta is a

 

a. signal level

b. ratio

c. power level

d. return spectrum

Definition
b. ratio
Term

The forward spectrum begins at?

 

a. 54 MHz

b. 42 MHz

c. 43 MHZ

d. 50 MHz

Definition

d. 50 MHz

Term

true/false

dBmV is a unit of measurement.

Definition
true
Term

What does QPSK stand for?

 

a. Quadrature Phased Shift Keying

b. Quality Placement Signal Keeping

c. Quality Phased signal Keying

d. Quadrature Phased Signal Keying

Definition

a. Quadrature Phased Shift Keying

Term

QPSK phased shift keying with four states. The "Quad" refers to four phases in which a carrier is sent in QPSK:

 

a. 180, 90, 0, and 270 degrees

b. 25, 145, 225, and 270 degrees

c. 45, 135, 225, and 315 degrees

d. none of the above

Definition
c. 45, 135, 225, and 315 degrees
Term

QPSK constellation diagram shows the four symbols with each symbol equaling?

 

a. 1 bit

b. 2 bits

c. 4 bits

d. 8 bits

Definition

b. 2 bits

Term

QAM is

a. a digital modulation plan that allows 2 channels of information to be transmitted at the same time on a particular frequency by changeing the phase and amplitube.

 

b. a digital modulation scheme that allows 2 channels of information to be transmitted at the same time on a particular frequency by changeing the phase and amplitube.

Definition
b. a digital modulation scheme that allows 2 channels of information to be transmitted at the same time on a particular frequency by changeing the phase and amplitube.
Term

8bits is =

 

a. 1 nibble

b. 2 Bytes

c. 1 Byte

d. 3 nibbles

Definition

c. 1 Byte

Term

4 bits =

 

a. 2 nibbles

b. 1 nibble

c. 1 Byte

d. 4 Byte

Definition
b. 1 nibble
Term

The Signal-to-Noise, S/N in decibels, is given by the formula;

 

a. S/N = 10 log10(Vs/Vn)

b. S/N = 20 log10(Vs/Vn)

c. S/N = 10 log20(Vn/Vn)

d. S/N = 20 log20(Vs/Vn)

 

Definition

b. S/N = 20 log10(Vs/Vn)

Term

S/N or SNR is?

a. Signal-to-noise ratio is a measure of signal quality relative to background noise in analog and digital communications.

b. Signal-to-noise ratio is a measure of signal strength relative to background noise in analog and digital communications.

c. Signal-to-noise rate is a measure of signal quality relative to background noise in analog and digital communications.

 

Definition

false

 

b. Signal-to-noise ratio is a measure of signal strength relative to background noise in analog and digital communications.

Term

Signal-to-noise is usually measured in.

 

a. nibbles

b. decibels dB

c. Byte

d. time

Definition

b. decibels dB

Term

Modulation Error Ratio (MER) are?

 

a. the rate of the error power to the average power in an ideal QAM signal.

b. the timing of the error power to the average power in an ideal QAM signal.

c. the ratio of the error power to the average power in an ideal QAM signal.

c. the ratio of the error power to the average power in an ideal QPSK signal

Definition
c. . the ratio of the error power to the average power in an ideal QAM signal
Term

Forward Error Correction (FEC) is

a. is method where additional data bits are added to the digital video bit stream to help identify and correct any errors that may be caused by the transmission system.

b. measure of signal quality relative to background noise in analog and digital communications.

 

c.the ratio of the error power to the average power in an ideal QAM signal

Definition
a. is method where additional data bits are added to the digital video bit stream to help identify and correct any errors that may be caused by the transmission system.
Term

Bit Error Rate (BER)

a. is method where additional data bits are added to the digital video bit stream to help identify and correct any errors that may be caused by the transmission system.

b. Measures how often an error occurs in a given amount of data

c. the ratio of the error power to the average power in an ideal QAM signal

d. the rate of the error power to the average power in an ideal QAM signal.

Definition
b. Measures how often an error occurs in a given amount of data
Term

It's a tests help to ensure that cable system's forward signals meet FCC standards. "POP"

 

a. Performance-of-Proof

b. Peer-to-Peer

c. Proof-of-Performance

d. Peak-to-Peak

Definition

c. Proof-of-Performance

Term

FCC standards are as outlined in

 

a. form 320

b. CFR 47, Part 76.605(a) (1-12)

c. CFR 88, Part 76.605(a) (1-12)

d. CFR 50, Part 88.605(a) (1-12)

Definition

b. CFR 47, Part 76.605(a) (1-12)

Term

Signal level at the customer's terminals.

 

a. +8/-8

b. 0/+10

c. -4/+10

d. 0/+15

Definition

d. 0/+15

Term

A Tap ?

 

a. contains a splitter with loss plus the loss of the splitter(s) determines the tap value.

b. contains a directional coupler tap loss with loss plus the loss of the splitter(s) determines the tap value

c. Directional coupler that feeds single splitter (2 outputs), (4 outputs), or seven splitters (8 outputs).

d. both b and c.

Definition

 

d. both b and c.

 

c. Directional coupler that feeds single splitter (2 outputs), (4 outputs), or seven splitters (8 outputs).

 

 

b. contains a deirectional coupler tap loss with loss plus the loss of the splitter(s) determines the tap value

Term

TAP is also know as a.

 

a. Teleco Access point

b. Transmission Access Point

c. Total Account Period

d. Transmission Access Period

Definition

b. Transmission Access Point

Term

true/false

"Intermodulation Distortion" is Two signals mixed together inside the cable plant

Definition
true
Term

Base Maps:


A.Shows streets with pole & pedestal locations.
B.Provide the layout of the system in a condensed form.
C.Resembles a street map, complete with featurs like lakes & rivers, streets, & boundaries.
D.Shows the locations of the electronic equipment, including the headend & any hubs, also amplifiers, power supplies, & taps.

Definition

C.Resembles a street map, complete with featurs like lakes & rivers, streets, & boundaries.

Term

Strand Maps:


A.Shows streets with pole & pedestal locations.
B.Provide the layout of the system in a condensed form.
C.Resembles a street map, complete with featurs like lakes & rivers, streets, & boundaries.
D.Shows the locations of the electronic equipment, including the headend & any hubs, also amplifiers, power supplies, & taps.

Definition
A.Shows streets with pole & pedestal locations.
Term

Design Map:


A.Shows streets with pole & pedestal locations.
B.Provide the layout of the system in a condensed form.
C.Resembles a street map, complete with featurs like lakes & rivers, streets, & boundaries.
D.Shows the locations of the electronic equipment, including the headend & any hubs, also amplifiers, power supplies, & taps.

Definition

D.Shows the locations of the electronic equipment, including the headend & any hubs, also amplifiers, power supplies, & taps.

Term

Amplifier Schematics or "Tree" Map:


A.Shows streets with pole & pedestal locations.
B.Provide the layout of the system in a condensed form.
C.Resembles a street map, complete with featurs like lakes & rivers, streets, & boundaries.
D.Shows the locations of the electronic equipment, including the headend & any hubs, also amplifiers, power supplies, & taps.

Definition
B.Provide the layout of the system in a condensed form.
Term

Another Name Of A Corrected Map:

 

A.Strand Map

B.As-Built

C.Design Map

D.Base Map

Definition
B.As-Built
Term

The Second Logical Backbone:

 

A.Comcast Backbone

B.CBone

C.IBone

D.Backbone

Definition

B.CBone

Term

What is the pathway used for the actual light transmission?

 

A.Center Conductor

B.Fiber

C.Cladding

D.Core

Definition
D.Core
Term

3 parts of Fiber Optic Cable:

 

A.Core, Fiber, Sheathing
B.Fiber, Core, Coating
C.Cladding, Center Conductor, Coating
D. Coating, Cladding, Core

Definition
D. Coating, Cladding, Core
Term

A Power Inserter is

 

a. is to pervent any power into plant cable

b. inserte power in to power passing TAP only

c. introduce AC power into network for use by the active devices

d. introduce DC power into network for use by the active devices

Definition
c. introduce AC power into network for use by the active devices
Term

Optical Receiver does what?

 

a. Convert the incoming light to RF signals for the coaxial cable outputs.

b. Convert the incoming RF to Light signal for the coaxial cable outputs.

c. Amplifier for Light from the Hub to the Nodes.

d. A pair of glass made withstand damage to one eyes.

Definition
a. Convert the incoming light to RF signals for the coaxial cable outputs.
Term

Scientists working in the glass industry discovered that if they cladded a glass fiber with glass having a different index of refraction and by using the principle of total____ _____they were able to transmit the light greater distances.

 

a. return reflection

b. bounce reflection

c. external reflection

d. internal reflection

Definition

d. internal reflection

Term

This replace the Tree and Branch architecture as networks were  rebuilt or upgraded.

 

a. Hydrid Feeder Coax (HFC)

b. Hydrid Fiber Coax (HFC)

c. Network Architectures (NA)

d. The CRAN Regional Core (CRAN-RC)

Definition

b. Hydrid Fiber Coax (HFC)

Term

The Purpose of the CRAN is?

 

a. provides a many common infrastructure in which all services are delivered via RF signal over a consistent transport and routing architecture.

b. provides a single common infrastructure in which all services are delivered via IP over a consistent transport and routing architecture.

c. enterconnect infrastructure servicers

d. replace the Tree and Branch infrastructure

Definition
b. provides a single common infrastructure in which all services are delivered via IP over a consistent transport and routing architecture.
Term

The Ibone is?

 

a. Interconnected Back bone to all of the Comcast infrastructure

b. is a nationwide video/voice distribution network that carries Comcast traffic from CRAN to CRAN.

c. Is part of the System Maps

d. or Internet Backbone is use dto provide regions with access to national HSD peers and to global Internet access.

Definition
d. or Internet Backbone is use dto provide regions with access to national HSD peers and to global Internet access.
Term

Separates or combines AC current's two parts: the AC power and the RF broadband signals.

 

a. Power Diplex

b. Diplex filter

c. Power passing chork

d. Power passing TAP

Definition

a. Power Diplex

Term

Being able to carry and individually select different channels on a single cable by their unique frequency is called what

 

 

a. QPSK

b. FDM

c. QAM

d. PSK

 

Definition

b. FDM

 

Term

Minimum distance between center of pole and span clamp.

 

a. 6"

b. 30"

c. 20"

d. 12"

Definition
b. 30"
Term

Minimum distance between span clamp and the tap

 

a. 12"

b. 1"

c. 6"

d. 10"


Definition
c. 6"
Term

Minimum aerial clearance for drops above public streets, alleys, roads, and commercial and residential driveways

 

a. 16'

b. 18'

c. 12'

d. 19'


Definition
16'
Term

Minimum distance between CATV drop and a power drop at the home.

 

a. 12'

b. 2'

c. 12"

d. 1'

Definition
c. 12"
Term

Grounding wire should not exceed ____feet or the length of the shortest cable outlet

 

a. 1'

b. 12'

c. 20'

d. 50'

Definition
c. 20'
Term

What is the log used for the FCC CLI.

 

a. Form 320

b. Form 550

c. CLI 3110

d. CLI act. 46. ver 26

Definition
a. Form 320
Term

what is the base color of the blue/blue white pair of CAT5e wire

 

a. white/blue

b. white

c. blue

d. blue/white

Definition
c. blue
Term

Used to compensate for fluctuations of the input signal, and the insertion loss required to give the a +/- 3dB window for adjustments.

 

a. pad

b. AGC

c. Equalizer

d. UPS

Definition

b. AGC

Term

A Response Equalizer is also called a ___ ____.

 

a. clean up

b. equalizer timer

c. mop up

d. Attenuater pad

Definition

c. mop up

 

this device is used to try and correct for any undesired peaks or valleys within the passband of the amplifier.

Term

Another name for a Pad

 

a. Equalizer

b. Attenuater

c. loading EQ

d. drop down

Definition

b. Attenuater

Term

0dBmV = _____ mV

 

a. 2

b. 3

c. 1

d. 0

Definition
c. 1
Term

Number of phase states in a QAM carrier

 

a. 4

b. 16

c. 0

d. 8

Definition
b. 16
Term

TELNET Port

 

a. Port 5120

b. Port 2323

c. Port 500

d. 1000

Definition

b. Port 2323

Term

TFTP

 

a. Trivial File Transfer Protocol

b. Timing Filing Transfer Porting

c. Trivial For Transfer

d. Tiling Forward Timing PQam

Definition

a. Trivial File Transfer Protocol

Term

Individual (Discrete) 3rd order beats in todays system containing over ____ channels are seldom the cause of the interference.

 

a. 57

b. 40

c. 61

d. 77

Definition
b. 40
Term

For a stable system, one where the levels move no more than 1.5 dB, a minimum C/CTB ration with CW carriers would be ___ with ___ as the goal.

 

a. 51 dB with 53 db as the goal

b. 55 dB with 57 db as the goal

c. 57 dB with 63 db as the goal

d. 50 dB with 53 db as the goal

Definition
a. 51 dB with 53 db as the goal
Term

54 mhz is what channels?

 

a. 13

b. 5

c. 4

d. 2

Definition
d. 2
Term

 A reading on you meter 0dBmV is the = to

 

a. 0 volts

b. .001 volts

c. 1 volt

d. none of the above

Definition
c. 1 volt
Term

Delta is _____?

 

a. timing

b. rate

c. measurement of dBmV

d. ratio

Definition
d. ratio
Term

If you are checking a cust. drop and/or house for ingress with you meter what freq. will you set you meter to check?

 

a. 5 to 50Mhz

b. 10 to 50Mhz

c. 5 to 42Mhz

d. 5 to 44Mhz

Definition
c. 5 to 42Mhz
Term

One of the this this device does is Separates (and recombines) the forward and reverse signals from the coaxial cable so they can be routed to (and from) the appropriate components within the amplifier station.

 

a. Power Diplex

b. Diplex Filter

c. power passing tap

d. power passing choke

Definition

b. Diplex Filter

Term

One the devices in a Amplifier is a Return amplifer what does it do?

 

a. Used to boost the return signal

b. typically ranges is 5 to 42 MHz

c. Usually has a gain of 20 dB

d. all the above

Definition

d. all the above

 

 

 

a. Used to boost the return signal

b. typically ranges is 5 to 42 MHz

c. Usually has a gain of 20 dB

Supporting users have an ad free experience!