Emcee HSD Series Manuale di istruzioni

HSD SeriesTM

Transmitters

HSD-2500

OPERATION AND

MAINTENANCE

GUIDE

Release 1.0

COMMUNICATIONS

Mountain Top, PA, USA

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

TABLE OF CONTENTS

1 THE HSD SERIES TRANSMITTER 0VERVIEW .......................................................5

1.1 Introduction: .................................................................................................5

1.2 Safety Warnings and Precautions:.................................................................6

1.2.1 Safety Considerations: ............................................................................6

1.2.2 Safety with Electricity: ............................................................................6

1.2.3 Preventing Electrostatic Discharge Damage: ..........................................7

1.2.4 Emission Notice: .....................................................................................7

1.3 HSD-2500 Design Specifications: ..................................................................9

1.4 Installation: .................................................................................................11

1.5 Operation:...................................................................................................12

1.6 Controls and Indicators:..............................................................................13

1.6.1 Front Panel Controls-Pictorial View: ......................................................14

1.7 List of Interconnecting Diagrams:................................................................14

1.8 List of Schematic Diagrams:........................................................................14

1.9 Warranty and Parts Ordering: .....................................................................14

2 MECHANIAL LEVEL OVERVIEW ........................................................................17

2.1 TRANSMITTER DIS-ASSEMBLY & MODULE LOCATION: ..............................17

2.1.1 INTERNAL VIEW-Up-Converter Drawer: ................................................19

2.1.2 REAR VIEW-Main Chassis:.....................................................................20

2.1.3 INTERNAL VIEW-Main Chassis: .............................................................21

3 CIRCUIT DESCRIPTIONS...................................................................................22

3.1 UP-CONVERTER DRAWER: .........................................................................22

3.1.1 Up-Converter Block Diagram: ...............................................................23

3.2 1st IF Module:...............................................................................................23

3.3 1st Converter Module: ..................................................................................26

3.4 Output Converter Module: ...........................................................................27

3.5 10 MHz Reference Oscillator Module: ..........................................................29

3.6 Control Board: ............................................................................................31

3.7 Display Board: ............................................................................................34

3.8 Driver Amplifier Module:..............................................................................36

3.9 Remote Control/Status Board:.....................................................................37

3.10 Up-Converter Power Supply: .....................................................................37

3.11 Main Chassis:............................................................................................38

3.11.1 Main Chassis Block Diagram ...............................................................38

3.12 +12 Volt Power Supply System ..................................................................39

3.13 Power Divider Module ...............................................................................39

3.14 12.5 WATT AMPLIFIER: .............................................................................40

3.15 Amplifier Combiner Module: ......................................................................41

3.16 Metering Coupler: .....................................................................................42

3.17 Metering Detector: ....................................................................................42

4 REMOTE STATUS/CONTROL SOFTWARE..........................................................44

5 MAINTENANCE .................................................................................................45

5.1 Periodic Maintenance Schedule: .................................................................45

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

5.2 Recommended Test Equipment:..................................................................45

5.3 Troubleshooting:.........................................................................................46

5.4 Front Panel Indicators:................................................................................46

5.5 HSD-2500 TROUBLESHOOTING CHART......................................................47

5.6 Output Power Calibration: ...........................................................................49

5.6.1 Forward Power Calibration: ..................................................................50

5.6.2 Reflected Power Calibration:.................................................................51

5.7 Pre-Corrector Adjustment:..........................................................................52

5.8 FREQUENCY PROGRAMMING: ....................................................................53

5.8.1 ITFS/MMDS Channel Programming: .......................................................54

5.8.2 EBS/BRS Channel Programming: ..........................................................55

5.9 Interpreting Amplifier Fault Indications: ......................................................56

5.10 Calibrating Voltage Indications:.................................................................57

6 PARTS LISTS ....................................................................................................58

7 SCHEMATIC DIAGRAMS....................................................................................73

8 OPERATING MANUAL RELEASE NOTES ...........................................................95

TABLE OF FIGURES

Figure 1: Up-Converter Interconnection Diagram ................................................74

Figure 2: Transmitter Interconnect Diagram........................................................75

Figure 3: 1st IF, Schematic Diagram ....................................................................76

Figure 4: 1st IF, Component Layout .....................................................................77

Figure 5: Output Converter, Schematic Diagram .................................................78

Figure 6: Output Converter, Component Layout...................................................79

Figure 7: Driver Amplifier, Schematic Diagram ....................................................80

Figure 8: Driver Amplifier, Component Layout .....................................................81

Figure 9: 10 MHz Reference, Schematic Diagram ................................................82

Figure 10: 10 MHz Reference, Component Layout................................................83

Figure 11: First Converter, Schematic Diagram ...................................................84

Figure 12: First Converter, Component Layout ....................................................85

Figure 13: Display Board, Schematic Diagram.....................................................86

Figure 14: Display Board, Component Layout ......................................................87

Figure 15: Control Board, Schematic Diagram.....................................................88

Figure 16: Control Board, Component Layout ......................................................89

Figure 17: 12.5 Watt Amplifier, Schematic Diagram .............................................90

Figure 18: 12.5 Watt Amplifier, Component Layout ..............................................91

Figure 19: Metering Detector, Schematic Diagram ..............................................92

Figure 20: Metering Detector, Component Layout................................................93

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

TABLE OF TABLES

Table 1: 1st IF Board Parts List............................................................................59

Table 2: Output Converter Parts List ...................................................................61

Table 3: Driver Amplifier Parts List ......................................................................63

Table 4: 10 MHz Reference Module Parts List ......................................................64

Table 5: 1st Converter Module Parts List .............................................................66

Table 6: Display Board Parts List.........................................................................68

Table 7: Control Board Parts List.........................................................................69

Table 8: 12.5 Watt Amplifier Parts List .................................................................70

Table 9: Metering Detector Parts List ..................................................................72

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

1THE HSD SERIES TRANSMITTER 0VERVIEW

1.1 Introduction:

The EMCEE HSD SeriesTM transmitter is a modular, frequency agile, format agile, self-

contained S-Band broadcast transmitter that is designed to provide up to 400 Watts peak

power or 100 Watts average power on any FCC or CCIR specified channel from 2500MHz

to 2700MHz. The transmitter will accept either a digital input or a composite analog input.

The transmitter is also available configured for multi-channel operation. To provide

maximum performance and reliability, the HSD SeriesTM Transmitter is completely solid-

state. The transmitter design includes IF linearity pre-correction, which minimizes the in-

channel intermodulation products; oscillator and converter circuits optimized for very low

phase and FM noise, which allows for depth of modulation up to 256QAM; automatic

internal or external synthesizer lock, for use with phase-locked systems; and infinite tuning,

by 1 MHz steps, across the entire band. The transmitter is designed to provide

configurable and upgradeable output power, requiring only a 6RU rack footprint. It features

minimum weight and low power consumption; and employs comprehensive indication,

control, and protection circuitry. To provide additional reliability, the HSD SeriesTM

transmitter system is designed to utilize a redundant N+1 power supply and power

distribution system (HSDPLUS). The transmitter will facilitate either digital or analog

transmission, and is compatible with all world analog transmission formats.

Each transmitter is composed of a Power Supply assembly, Up-Converter Assembly, one

or more 12.5 watt Final Amplifiers, and an optional Control/Status interface. The

Control/Status interface allows the unit to be remotely controlled via computer and

graphically shows the status of the transmitter; aiding the operator during turn-on, operation

and maintenance.

Optional output filters are available for additional suppression of out of channel products.

The HSD Transmitters are available in the following output power configurations:

¾HSD-250110 Watt Peak/2.5 Watt Average Power

¾HSD-1250/HSD-1250PLUS 50 Watt Peak/1-12.5 Watt Average Power

¾HSD-2500/HSD-2500PLUS 100 Watt Peak/2-25 Watt Average Power

¾HSD-3750/HSD-3750 PLUS 150 Watt Peak/3-37.5 Watt Average Power

¾HSD-5000/HSD-5000PLUS 200 Watt Peak/5-50 Watt Average Power

¾HSD-10000/HSD-10000 PLUS 400 Watt Peak/10-100 Watt Average Power

The HSD-XXX PLUS configurations feature N+1 redundant power supplies.

1The HSD-250 is used as the Up-Converter/Driver assembly for all other models.

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

1.2 Safety Warnings and Precautions:

This section provides information related to the safe installation and use of the

EMCEE HSD-2500. It contains the following sections:

oSafety Considerations

oSafety with electricity

oPreventing Electrostatic Discharge Damage

oEmission Notice

1.2.1 Safety Considerations:

Follow these guidelines to ensure general safety:

•Keep the chassis area clear and dust free during and after installation.

•Keep tools away from walkways where you and others could trip over them.

•Do not wear loose clothing that could get caught in the chassis. Fasten your tie or

scarf and sleeves.

•Wear safety glasses when working under conditions that might be hazardous to your

eyes.

•Do not perform any action that creates a hazard to people or that makes equipment

unsafe.

1.2.2 Safety with Electricity:

Warning! This warning symbol means danger. You are in a situation that could

cause bodily injury. Before you work on any equipment, be aware of the hazards

involved with electrical circuitry and be familiar with standard practices for preventing

accidents.

Warning! Before working on equipment that is connected to power lines, remove

ewelry (including rings, necklaces, and watches). Metal objects will heat up when

connected to power and ground and can cause serious burns or weld the objects to

the terminals.

Warning! Unplug the power cord before you work on any system that does not have

an on/off switch.

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

Follow these guidelines when working with equipment powered by electricity:

•Locate the emergency power-off switch for the room in which you are working.

•Before working on the equipment, unplug the power cord.

•Disconnect all power before doing the following:

oInstalling or removing the chassis

oPerforming a hardware repair

•Do not work alone when potentially hazardous conditions exist.

•Never assume that power has been disconnected from a circuit. Always check.

•Look carefully for possible hazards in your work area, such as moist floors,

ungrounded power extension cables, and missing safety ground wires.

•If an electrical accident occurs, proceed as follows:

oUse caution.

oUnplug the power cord.

oIf possible send another person to get medical aid. Otherwise, assess the

victim's condition and then call for help.

oDetermine if the victim needs rescue breathing or external cardiac

compressions, and then take appropriate action.

1.2.3 Preventing Electrostatic Discharge Damage:

Electrostatic discharge can damage or impair electrical circuitry. It occurs when

electronic components are handled improperly. Always follow electrostatic discharge

prevention procedures when removing or replacing components. Ensure that the

chassis is electrically connected to earth ground using an electrostatic discharge

mat or a ground wire. Wear an electrostatic discharge-preventive wrist strap,

ensuring that it makes good skin contact and is connected to an unpainted surface

on the chassis frame. If no wrist strap is available, ground yourself by touching the

metal part of the chassis while handling a component.

1.2.4 Emission Notice:

This equipment generates, uses, and will radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

harmful interference to radio or television reception, which can be determined by

turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

•Reorient or relocate the receiving antenna of the affected equipment, or relocate

the transmitter or transmit antenna.

•Increase the separation between the equipment and receiver.

•Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

•Consult the factory or an experienced radio/TV engineer for help.

RELEASED: 10/2/2006

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COMMUNICATI0NS HSD SERIES OPERATION AND MAINTENANCE

This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

1.3 HSD-2500 Design Specifications:

Output Power

Analog 5-100W peak visual

.25~5W ± 1 W average aural

Digital 2~25W average power

Emissions

Analog 5M75C3F visual

250KF3E aural

Digital 4~256 QAM (DVB-C) or 8/16 VSB (ATSC),

6M00D7W

Monochrome Standards B/G, D/K, M/ N, I

Color Transmission NTSC, PAL, or SECAM

Frequency Response ±1dB from 500kHz to 4.0MHz M/N, 5.0 MHz

B/G, 6.0 MHz D/K

Output Frequency Range 2500-2700 MHz

Channel Bandwidths 6 MHz, 7 MHz, or 8 MHz

Spectral Regrowth -40dB @channel edge ±.25 MHz

-60dB ±3 MHz from channel edge

Frequency Stability Visual Carrier ±1kHz

Aural Carrier ±1kHz

Visual Output Power Stability ±0.5dB

Error Vector Magnitude ≤1.5%

Output Variation 2%

Output Regulation 3%

Spurious Products -60dB (below peak sync in analog mode)

Harmonics -60dB (below peak sync in analog mode)

In-Band Intermodulation Products -52dB (below peak sync in analog mode)

Out-of-band Intermod Products -40dB (below peak sync in analog mode)

Differential Gain 10%

Differential Phase ±10°

Phase Noise -100dBc @ 10 KHz (Synth. Std.)

-110 dBc @10 KHz (Osc/Mult. Opt.)

Low Frequency Linearity 5%

RELEASED: 10/2/2006

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This is an unpublished work protected by the United States copyright laws and is proprietary to EMCEE Communications.

Disclosure, copying, reproduction, merger, translation, modification, enhancement or use by anyone other than authorized

employees or licensees of EMCEE Communications without the prior written consent of EMCEE Communications is strictly

prohibited.

This copyright notice should not be construed as evidence of publication.

2T Pulse K-Factor 3% minimum

12.5T Baseline Disturbance 5% maximum

Envelope Delay ±5ns

Output Impedance 50 ohms/Female N-Type

IF Input Impedance 75 ohms unbalanced/Female BNC

Video Signal to Noise -55dB

Digital Signal to Noise 34dB

Hum and Noise -50dB

IF Input Level -5 to -25 dBm nominal

Harmonic Distortion <1%

Frequency Response ±.1dB, 50Hz to 15 kHz

Aural FM Noise -60dB

Aural AM Noise -60dB

Operating Temperature 0°C to +50°C

RF Output Connector Type ‘N’ Female, 50Ω

Power Requirements 85~264 VAC ± 15% @47-63Hz

Power Consumption HSD-2500 750 Watts

Safety Certifications UL (US and Canada), CE, TUV, ITE

Mechanical Dimensions (w/o brackets) 10.5"H (6RU) x 17.0"W x 24.125"D

Weight HSD-2500 56 lbs.

Note: FCC type acceptance for the HSD Series transmitters is in process.

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