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Dan2024 Study > Mid-split amps (Commscope Tier 2 Mid-split Amplifier setup and Maintenance) > Flashcards

Mid-split amps (Commscope Tier 2 Mid-split Amplifier setup and Maintenance) Flashcards

1
Q

RPLPF

A

Return Path Low Pass Filter

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2
Q

RCB

A

Response Correction Board

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3
Q

Return spectrum

A

5-85 MHz

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4
Q

What technology does 1.2 GHz amps use for the power supply

A

Gallium Nitrate (GaN)

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5
Q

How much return gain do the 1.2 GHz amps have

A

24db

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6
Q

Minimum input level of MB120

A

5db on lowest channel

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7
Q

How long is the recommended burn in time before activating the ADU

A

30 min

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8
Q

Torque specs for MB120 RF tray bolts

A

18-22 inch pounds

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9
Q

Minimum input level for BLE120

A

12 db on lowest channel

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10
Q

What Frequency does the ADU operate on for 1.2 GHz amps

A

711 MHz

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11
Q

Torque spec for BLE120 RF tray

A

1.5 - 1.8 Foot pounds

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12
Q

ADU will not operate below this level

A

34 dBmV

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13
Q

Nominal amplifier level for ADU in 1.2GHz amps

A

41.5 dBmV @ 711MHz

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14
Q

What is the return input pad value for 1.2GHz amps

A

8 db

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15
Q

Return Equalizer identifier

A

“N”, 85 or both

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16
Q

How many return input ports on MB120

A

2

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17
Q

How much higher is the gain in 1.2GHz amps versus legacy amps

A

3db

18
Q

What is the highest frequency passed in 1.2GHz amps

A

1218MHz

19
Q

How many stages of gain does an MB120 have

A

4

20
Q

What style EQ do 1.2GHz amps use

A

1.2” JXP Style EQ

21
Q

MB120 Reserve gain @550 MHz above 110 degrees

A

1db

22
Q

MB120 reserve gain @ 550MHz between 32 and 110 degrees

A

2db

23
Q

MB120 reserve gain @ 550MHz below 32 degrees

A

4db

24
Q

MB120 reserve gain @ 750MHz above 110 degrees

A

2.5db

25
Q

MB120 reserve gain @ 750MHz between 32 and 110 degrees

A

3.5db

26
Q

MB120 reserve gain @ 750MHz below 32 degrees

A

4.5db

27
Q

MB120 reserve gain @ 870-1002 MHZ above 110 degrees

A

3db

28
Q

MB120 reserve gain @ 870-1002MHz between 32 and 110 degrees

A

4db

29
Q

MB120 reserve gain @ 870-1002MHz below 32 degrees

A

5db

30
Q

MB120 reserve gain @ 1218MHz above 110 degrees

A

4db

31
Q

MB120 reserve gain @ 1218MHz between 32 and 110 degrees

A

5db

32
Q

MB120 reserve gain @ 1218 MHz below 32 degrees

A

6-8db

33
Q

BLE120 reserve gain @ 1000MHz above 110 degrees

A

3db

34
Q

BLE120 reserve gain @ 1000MHz between 32 and 110 degrees

A

4db

35
Q

BLE120 reserve gain @ 1000MHz below 32 degrees

A

5-8 db

36
Q

BLE120 reserve gain @ 1218MHz above 110 degrees

A

2db

37
Q

BLE120 reserve gain @ 1218MHz between 32 and 110 degrees

A

5db

38
Q

BLE120 reserve gain @ 1218MHz below 32 degrees

A

8db

39
Q

1.2GHz ADU padding 44dBmV and below

A

0db

40
Q

1.2GHz ADU padding @ 45dBmV

A

1db

41
Q

1.2GHz ADU padding @ 46dBmV

A

2db

42
Q

1.2GHz ADU padding @ 47dBmV

A

3db

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