MCR Engineer

Question 0

Standard tv
DVD
HDTV
Blu-Ray

Answer 0

3.5 Mbs
9.8 Mbs
8-15 Mbs
40 Mbs

Question 1

VITC line?

Answer 1

Line 19 and 21

Question 2

SDI

HDSDI

DUAL LINK HDSI

3G SDI

Answer 2

270 Mbs

1. 45 Gbs
2. 970 Gbs
3. 970 Gbs

Question 3

Teletext Lines. EPG. Program delivery control.

VITC LINE

ACTIVE PICTURE LINE

Answer 3

13 - 18 first field. 318-355 second field

19 + 21 first field. 334 + 332 2nd field

Line 23

Question 4

A field takes how long onscreen?

Minimum lag acceptable?

Answer 4

40 m/s

20 m/s

Question 5

WSS Wide Screen Sampling line

AFD Active Format Description line

Mpeg signalling how often?

Answer 5

Line 23

Line 11

Every 12 frames every new GOP

Question 6

What’s is SNMP used for in MCR?

Answer 6

Frame syncopation cards
Subtitle line inserters
AXON Kit
Cue dot

Question 7

SNMP Terms

Answer 7

MIB Management Information Base
OID Object Identifiers. Entries in MIB
PDU Protocol Data Unit: getrequest, getnextrequest, setrequest, getresponse and Trap.
V2 Getbulkrequest, Inform

Question 8

Ports for SNMP?

Answer 8

All Pdu’s except Trap sent via UDP Port 161

Traps are sent on UDP Port 162

Question 9

SNMP good for?

Answer 9

Reduced overhead on network
Reduced processing
Usable on almost every IP Network with single central NMS

Admin need not manually monitor individual components.

Question 10

Teletext line?

Answer 10

Line 13-18 field one

On second field so recoverable.

Question 11

Dolby is called?

Answer 11

Dolby bearer

Question 12

What is audio outlet called?

Answer 12

AES. Audio Engineering Society

Question 13

What can affect Satellite transmission?

Answer 13

RAIN FADE

SOLAR FLARES

SUN OUTAGE - satellite passes in front of Sun

Question 14

Onmeon uses what file format?

Grass Valley K2 uses what format?

Answer 14

Mov files

.mxf. Media exchange format

Question 15

What information is in metadata XML files?

Answer 15

Duration
Title
SOM
Timecode
Aspect ratio

Question 16

In Group Of Pictures

What are the frames called?

Answer 16

I Frames. Intra Coded frames
B frames. Bi-directional frames
P predictive frames - motion compensated
D frames - direct coded picture

Question 17

Redundancies in MPEG, that reduce the outgoing stream?

Answer 17

Spatial redundancy - pixels are same colour
Temporal redundancy - differences between frames
Visual redundancy - discards data
Statistical redundancy - mathematically reduces data

Question 18

Codes in MPEG 2?

Answer 18

PID Packet ID’s
PSI Programme Specific Information
PCR Programme clock reference - align video and audio
CBR - Constant bit rate - include null packets

Question 19

Mpeg Encoder name?

Answer 19

DCT Discrete Cosine Transform

Question 20

PID?

Answer 20

Packet Identifier
13 bit
Multiplexer extracts elementary streams if they have the same PID.
Time division multiplexing.

Question 21

Mpeg Transport Stream

Answer 21

Program and System Information Protocol. PSIP

Packet. Basic data unit
PID Program Identifier
PMT  Program Map Table, unique PID's
PAT. Program Association Table all progs in transport stream
PMT Program Map Tables inf about progs

PCR Program Clock Reference. Every 100ms

Question 22

Communication cards

Answer 22

RS422 Engineering
RS232 Pc connector
2330 card Pro-bel use