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24

# / A

1 Fiber number that has typical color of orangein multi-corefiber cables

2

2 Fiber number that has typical color of aquain multi-core fiber

cables12

3 In Cpe, how many units is credited for being panelist 3

4 Nominal channel spacing of Time Division Duplexing (TDD) 5 MHz

5 Voltage Tunable Magnetron (VTM) 10 W

6 Klysron amplifier oscillator is capable of large stable output

power ofMore than 10 MW

7 The installation tension that can be given to a more rugged

fiber cablewithout causing damage10 000 N

8 The installation tension that can be given to a lightweight

internal cablewithout causing damage100 N

9 Human hearing curve A-weighted curve

10 100 IRE, 0.714V Pure white

11 0 IRE, Blanking pulse

12 A3Ais formerly R3E

13 In the IS-95cellular device, the base station transmit frequencyis ____ above the mobile station transmit frequency

45 MHz

14 Refers to the amount of crosstalk above reference dBx

15 The difference signal, which is the difference between the right

and left channels (R-L) is transmitted on a _______ subcarrierusing FM modulation 38 Kbps

16 ____ is reflected, _____ is absorbed 1, 99

17 The maximum allowable obstruction as a rule of thumb 40%

18 Ionospheric effectcontributes _____ of error in GPSsignal. +/- 5 m

19 Firewire IEEE 1394

20 Single Pair High-Speed Digital Subcsriber Line (SHDSL) is a

form of DSL that enables faster transmission rate over copper

lines at _________2.3 Mbps

21 The full IEEE 1394Bspecification supports optical connection

up to 100 meters in length and data rates all the way to _____3.2 Gbps

22 IP was first standardized on _________ 198123 First cellular phone was introduced on _______ 1984

24 CDMAis a digital air standard, claiming _______ the capacity

of analog 8 to 15 times

25 GPRS downlinkdata rate is _________ 28 to 64 Kbps

26 Hamming Codeconsist of ____ data bitsand _____ parity

bits4 , 3

27 The median field strengthfor which protection against

interference of channel 21 to 32is _______65 dB

28 Start of Super-band channel is channel _______ 23

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29 TWT (Travelling Wave Tube) 1 W

30 For Class B-1 FM broadcast stations, the maximum ERPallowed is ______ KW with an antenna height limited to 200 ft

above average terrain5

31 Data compression that uses the Limpel-Ziv-Welch

compression algorithmV.42bis

32 ISDNhas how many classifications? 6

33 Authorized maximum powerof a repeater 200 W

34 Blue laser is ______ times faster than infrared 5

35 Fiber absorptionis minimal at ________ 1550 nm

36 Aural maximum channel deviation 25 KHz

37 Sophisticated Visual Effect D-1

38 The VTR standardfor digital composite (coded) NTSC or

PAL signals that uses data conforming to SMPTE 244M.

D-2

39 A signalling path provided by a cable television system todeliver to subscriber terminal signals that are intended for

reception by equipment other than a television broadcastreceiver only when used with auxiliary equipment is classified

as _________.

Class III

40 Numerical measurement of the aperture settingin a digital

camera lens.F-Stop

41 Number of AM broadcast channelsin the Philippines? 131

42 Keeps the satellite position Station Keeping

43 Sound carrier should be attenuated at least _______ to avoid

interference

13 to 17 dB

44 Human ear is most sensitive at _______ 1 to 5 KHz

45 The Sound pressure level in Rock Concertis ______ 120 dB

46 Iridium satelliteare found at the height of _______ 80 km

47 In acoustics, the optimum reverberationof a recording studiois in the range of ________

0.45 to 0.55 sec

48 Number of orbitsof ISS per day 15.72

49 The IFof up-down converter 612.75 MHz

50 _______ has a diameter of 200mor more Large Core Fiber

51 SUFper MHz P 500,000

52 1sviolationin KBP radio P 1,000

53 525 scanning lines 1 / 3054 Traffic Channelsalways carries data in _________ 20 ms

55 ps / nm / km 3.5

56 MF broadcast band 526.5 to 1705 KHz

57 Delay time for picture tube 5ms

58 Reverberation time for clear speech 2 sec

59 The composition of Y signal 0.3R + 0.59G + 0.11B

60 A TV broadcast standard mainly used in Western Europe PAL B/G

61 Successorof PALand SECAM DVB-T

62 In microwave communications, which of the following Fresnel Zone Concept

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concepts may be used to analyzed interference by obstacles

near the path of a radio beam

63 How many horizontal lines are blanked outin the frame of

TV receivers by V blanking? 42

64 Reduction of Jitter

65 60 to 80 dB

66 Most basic services supported by GSM Telephony

67 When placing cardioids patterned microphones, each

microphone should be at least four times as far as the next oneas it is from the sound source. This is known as ________

4 to 1 rule

68 Parabolic antenna Cassegrain Feed

69 LC circuit Trap

70 The error correction code by DVC (Digital Video Cassette) Reed-Solomon Code

71 How many mastergroup are in a jumbo group? 672 Already have 88.1 MHz 94.5 MHz

73 The first transatlantic telephonecable to use optical fiber that

went into operation in 1988.TAT-8

74 A tape format used in video recording that has a track scanning

rotation speed of 1800 rpmHi8

75 Baseband frequencyin HiFi 50 Hz to 15 KHz

76 A proprietary channel bonding equipment that can boostnetwork speeds up to 108 Mbpsin the Wi - Fi

Super G

77 When different signals meet up on a single point it results to

_____Fading

78 Short Wavelength GaAlAs79 240 Khz

80 What circuit separates signal pulse from compostive videowaveform in a system?

Clipper

81 Receiving antenna front- to-back rationot less than _____ 18 dB

82 sandwich Pillbox

83 A IP addressing class consist of 4 network bits and 28 host

bitsClass D

84 Best encoding scheme for clock recovery. BPRZ

85 GSM1800 downlink frequency 1805 to 1880 MHz

86 Reverberation time ranges from 0.8 to 1.2 sis in _________ Cinema

87 Compression of 200:1 MPEG-288 RFID ERP 2 W

89 60 sec

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7 13 55

21 32 65

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A A . 23 36 216 300

A A . 37 62 300 456

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