Motorola BLE100 operation manual Starline Forward Equalizers SFE-100, Slope SFE-100

Page 25

3-4

Amplifier Setup

The slope of the required equalizer is 15 dB. Table 3-1 and Figure 3-1 show that 15 dB of slope is caused by approximately 20 dB of cable at 1003 MHz. Therefore the correct equalizer is model SFE-100-20.

When selecting an equalizer, choose the next lower value if the exact value is not available or in cases where the calculated value makes two choices possible.

Table 3-1 helps you choose the correct equalizers and also lists insertion loss at various frequencies:

Table 3-1

Starline Forward Equalizers – SFE-100-*

 

 

 

 

Frequency (MHz) versus Insertion Loss (dB)

 

 

Equalizer

Equalizer

50

200

300

450

550

650

750

870

1003

Value

Slope

 

 

 

 

 

 

 

 

 

SFE-100-*

 

 

 

 

 

 

 

 

 

 

22

16.7

17.7

12.4

10.0

7.1

5.4

3.9

2.5

1.0

1.3

20

15.2

16.2

11.4

9.2

6.5

5.0

3.6

2.3

1.0

1.3

18

13.7

14.7

10.3

8.4

6.0

4.6

3.4

2.2

1.0

1.3

16

12.1

13.1

9.3

7.6

5.4

4.2

3.1

2.1

1.0

1.3

14

10.6

11.6

8.2

6.7

4.9

3.8

2.8

1.9

1.0

1.3

12

9.1

10.1

7.2

5.9

4.3

3.4

2.6

1.8

1.0

1.3

10

7.6

8.6

6.2

5.1

3.8

3.0

2.3

1.7

1.0

1.3

8

6.1

7.1

5.1

4.3

3.2

2.6

2.0

1.5

1.0

1.3

6

4.6

5.6

4.1

3.5

2.7

2.2

1.8

1.4

1.0

1.3

4

3.0

4.0

3.1

2.6

2.1

1.8

1.5

1.3

1.0

1.3

2

1.5

2.5

2.0

1.8

1.6

1.4

1.3

1.1

1.0

1.3

BLE100 Installation and Operation Manual

Page 24 Page 26
Image 25
Page 24 Page 26
Contents
Installation BLE100 Special Symbols That Might Appear on the Equipment Page Contents Installation Bench TestingSpecifications Operating TipsTables Torque Specifications Abbreviations and AcronymsAppendix B BLE100 closed IntroductionBLE BLE100 openRelated Documentation Using This ManualDocument Conventions Motorola Online http//businessonline.motorola.com If You Need HelpCalling for Repairs BLE100 base with electronics module OverviewBLE100 ordering matrix Ordering MatrixBLE-HSG/15 housing and dimensions HousingGaskets Housing gasketsPort Locations Housing portsBLE100 power supply Power SupplyForward Path BLE100 block diagramReturn Path Options and Accessories Ingress Control SwitchBLE100 options and accessories Model Description FunctionSRE SFE-100SCS RCB JXP Proper Handling Procedures Amplifier SetupBench Setup Field PracticeBefore You Begin Forward Path AlignmentExample Starline Cable EqualizersSlope SFE-100 Starline Forward Equalizers SFE-100Equalizer slope versus cable Frequency Cable slope in dB Starline Cable SimulatorsStarline Cable Simulators Flatness Control Input and Midstage PadsFrequency versus cable slope Bode Equalization Directional Coupler Test PointsLDR/9/1G component layout top-left, bottom-right Gain reserve versus ambient temperature Temperature Gain ReserveAmplifier Level Control Manual Gain ControlAmplifier Setup Automatic Drive Unit/QAM Automatic Drive Unit ADU/QADU Pads and Levels Return Path AlignmentAlignment Procedure Powering and Surge Protection Before You Begin Bench TestingMeasuring Forward Gain Test Equipment and ConnectionsTest equipment connections for bench sweeping Example Completing the Test Procedures Testing Return Gain and ResponseAerial Installation InstallationCenter-conductor pin length Torque sequence J1 position DescriptionPedestal Installation Using Amplifiers in Lower Gain Systems Using Amplifiers in Lower Frequency SystemsOperating Tips Specification SpecificationsModel BLE100S Forward AmplifierReturn Amplifier AC CurrentADU Automatic Drive Unit Torque Fastener Screw Wrench In-lbs Torque SpecificationsSize Abbreviations and Acronyms Visit our website at 527548-001 04/06