SVP DR-100 Series User manual

DR-100 Series COFDM

DIGITAL RECEIVER

Versions:

DR-102 Diversity 2

DR-106 Diversity 6

USER’S MANUAL

Version 1.1

SVP

Broadcast

Microwave

2

Contents

Chapter 1: Introduction

The objective of this first part is to provide a general description of the DR-

100 receiver.

Chapter 2: Connections

This second part offers a detailed description of each of the connections on

the DR-100 receiver.

Chapter 3: Technical features

The objective of this chapter is to provide detailed technical features of the

DR-100 receiver: inputs, outputs, power supply, remote control, and

physical and environmental characteristics.

Chapter 4: Front panel controls on the demodulator unit.

This chapter offers a detailed description of every the control on the front

panel of the rack-mount demodulator unit.

Chapter 5: Local control of the equipment

This chapter provides a detailed description of the local control procedures

for the DR-100 receiver, using the display and the keypad on the rack-

mount demodulator unit. Each of the menus and sub-menus are described

in detail. Required steps to configure and monitor the unit’s parameters are

defined.

Chapter 6: NetC Software to control remotely a network of

SVP equipment

This chapter provides a detailed description of NetC software. This program

allows the control of several SVP systems at the same time, provided they

all are in the same local area network.

Chapter 7: Remote control via RS-232 connection

This chapter provides a detailed description of how to remotely control the

DR-100 series receivers via a RS-232 connection.

3

4

DEAR CUSTOMER:

We would like to thank you for selecting this equipment and welcome you to

the SVP’s growing family of products.

We are sure that the addition of this equipment to your existing installation

will cause you nothing but satisfaction.

Please read these instructions carefully, and keep them at hand in case you

have to refer to them.

5

IMPORTANT NOTES:

1. The DR-100 series digital COFDM receiver is completely compatible with

the DVB-T standard included in European Standard ETSI EN300744.

2. There are two different models available: the DR-102 diversity 2 receiver

and the DR-106 diversity 6 receiver. Two down-converters can be

connected to the DR-102 receiver and up to 6 down-converters can be

connected to diversity 6 receiver. Each down-converter is connected to

an independent receiver antenna in order to provide diversity.

3. The complete receiver system consist of two parts: first, the down-

converters installed outdoors next to the receiver antennas and second

the rack control unit DR-102 or DR-106 installed indoors which

demodulates and decodes received incoming signal from the down-

converters.

4. DR-100 series receivers usually work with SVP DC-COFDM down-

converters, which are available in bands of 500MHz in the frequency

range from 1.3 to 10.5GHz

5. In the receiver’s site is important to determine if the channel in which

the transmission will be carried out is interfered. In addition, special care

must be taken in 2400 to 2500MHz band, due to the possible presence

of WiFi signals.

6. While installing the equipment, the power supply to the down-converters

should be disabled in the Setup configuration menu of the rack-mount

demodulator unit, to avoid the risk of short-circuits.

7. The receiver system must be well chilled. Some space must be left next

to the sides of the equipment for ventilation purposes. This is especially

important when it is installed in a rack case.

8. If you wish to install the rack-mount demodulator unit horizontally,

guides should be used, due to the weight of the equipment.

9. It is not advisable to use a power lead with a cross section smaller than

that of the lead supplied, sing this would cause a drop in the supply

voltage and deficient operation of the equipment.

10.The front panel of the DR-100 series receivers is automatically locked

when the user stops manipulating the equipment for 30 minutes.

11.Only authorized personnel should open the product and any repair or

warranty will be invalidated is the seals are open.

Contents

1Description ......................................................................... 1

List of figures

Figure 1.1 Connection diagram of the DR-100 series equipments .............. 1

Figure 1.2 A flight case for the rack-mount demodulator .......................... 2

Chapter 1

Introduction

Chapter 1: Introduction

1

1 Description

The DR-100 series COFDM digital receivers receive the signal from the

down-converters which are installed outdoors next to the receiver antenna.

It demodulates and decodes incoming signal. Afterward the signal sent by

the transmitter is obtained at its outputs in video, SDI and ASI formats.

Figure 1.1 Connection diagram of the DR-100 series equipments

There are two different models available: the DR-102 diversity 2 receiver

and the DR-106 diversity 6 receiver. Two down-converters can be

connected to the DR-102 receiver and up to 6 down-converters can be

connected to diversity 6 receiver. Each down-converter is connected to an

independent receiver antenna in order to provide diversity. This allows

several different antennas to be installed, in order to take advantage of

their combined characteristics, or several antennas, of similar types or

different types can be installed oriented in different directions to offer wider

coverage. Using a diversity system makes the link more robust and offers

better performance than a non-diversity system.

The complete receiver system consist of two parts: first, the down-

converters installed outdoors next to the receiver antennas and second the

rack control unit DR-102 or DR-106 installed indoors which demodulates

and decodes received incoming signal from the down-converters.

DR-100 series receivers usually work with SVP DC-COFDM down-converters,

which are available in bands of 500MHz in the frequency range from 1.3 to

10.5GHz

The diversity technique used in the DR-100series digital COFDM receivers is

known as "Maximum Ratio Combining” (MRC), in which the signal to be

demodulated is the result of combining the best sub-carriers in each signal

delivered by the down-converters; in other words, the unit does not simply

select the input signal from one of the down-converters, it combines these

signals in such a way that the signal used by the demodulator is always the

best signal available.

Chapter 1: Introduction

2

The IF signals delivered by the down-converters are fed into the rack-mount

demodulator, which demodulates them using the MRC diversity technique

and then decodes them to obtain two composite video signals, two SDI

digital signals, four analogue audio signals and four digital audio signals

embedded in the SDI signal. All models of the DR-100 series also have a

DVB-ASI transport stream output that can be extremely useful if several

decoders are to be chained or to implement an intermediate ASI feed

without having to decode it. They also have a Genlock reference input in

order to lock the SDI output signals.

This equipment is capable to receive GPS data or other data types

introduced, at different speeds, in the data channel in SVP transmitters.

The display and the keypad on the front panel of the demodulator

equipment can be used to monitor many parameters of interest, such as the

modulation, the Viterbi coding or the FEC, and the guard interval used

(obtained when the TPS, [Transmission Parameter Signalling] carriers are

demodulated), signal levels, link quality parameters such as the SNR, the

MER and the BER and the presence of alarms and/or warnings.

When steering the antennas, the main screen showing the signal levels and

the SNR of the IF inputs is very helpful. These measurements are displayed

as a bar graph and as numerical values. The numerical values do not

express signal levels or SNR in dB, they are merely indicative. The scale for

the signal levels is from 1 to 100, and the SNR values range from 1 to 10.

These measurements are really useful while orienting the antennas.

There is also a UDP/IP Ethernet link that allows these and many other

parameters to be controlled and monitored from a remote station.

The equipment can be AC mains powered or run off DC batteries. The

switchover from the mains to batteries is automatic. The down-converters

are powered from the demodulator unit via the IF coaxial cable that

connects them together.

The Down-Converters are waterproof and are installed next to the reception

antennas.

An optional flight case is available for the rack-mount demodulator. Its size

is 2 units rack; consequently, two equipments can be transported in it.

Figure 1.2 A flight case for the rack-mount demodulator

3

Contents

1Introduction ........................................................................ 4

2Power supply ...................................................................... 5

3Video ................................................................................. 5

4Audio ................................................................................. 6

5DVB-ASI ............................................................................. 6

6Genlock .............................................................................. 6

7Data Out ............................................................................ 6

8Remote control .................................................................... 7

9Down-converter .................................................................. 7

10Antenna ............................................................................. 7

List of figures



Figure 1.1 Back view of the rack-mount demodulator .............................. 4

Figure 1.2 The down-converter ............................................................. 4

Figure 9.1 Connection of the receiver antenna ........................................ 7

Chapter 2

Connections

Chapter 2: Connections

4

1 Introduction

All connectors of the rack-mount demodulator unit are on the rear panel, as

shown in the figure below:

Figure 1.1 Back view of the rack-mount demodulator

On the other hand, the connectors on the down-converter are on both the

top panel and the bottom panel, as shown below:

Figure 1.2 The DC down-converter

Chapter 3 offers detailed technical features of all of the connectors.

Chapter 2: Connections

5

2 Power supply

The equipment can be powered by an AC source between 90 and 240V, or a

DC source of 11 to 36 V. The down-converters are powered from the rack-

mount demodulator unit via the IF coaxial cable that connects them

together.

When the equipment is powered by an AC source, this is connected to a

switching power supply that gives a 12V output.

The power-supply board receives either the 12V supply from this power

supply or a DC voltage between 11 and 36V from the DC power input, and

converts the input to the supply voltages required by the equipment:

+3.3V, +5V, +12V and –12V.

The mains frequency should be between 50 and 60 Hz.

The AC mains input uses a Neutrik MLC connector. A cable with the required

connectors is supplied with the equipment.

The AC power connector used in this equipment is designed to prevent

accidental disconnection. To extract the connector, pull back the locking clip

and rotate the connector, as indicated on the connector itself.

It is not advisable to use a power lead with a cross-section less than that of

the lead supplied, since this would cause a drop in the supply voltage and

deficient operation of the equipment.

The DC power supply is connected via a Neutrik 4-pin male XLR connector

with a safety clip to prevent accidental disconnection.

The IF inputs of the demodulator supply +12V to power the down-

converters.

3 Video

The DR-100 series receivers include two analogue composite video outputs

and two SDI digital video outputs.

Each of these signals is available on 75Ω insulated BNC connectors located

on the rear panel of the rack-mount demodulator unit.

The SDI digital video outputs are compatible with the SMPTE-259M

standard.

We recommend the use of RG-59 video cable. If this type is not used, we

recommend that the cable used that does not attenuate the high-frequency

components of the video signal. When the cable has been selected, it is

important to determine the length required. For cables longer than 50m, it

is advisable to check the cable and the losses that occur on them.

Chapter 2: Connections

6

It is important that 75Ω connectors be used. This is because the female

output connector of the demodulator unit may be damaged, and because an

impedance mismatch will occur.

4 Audio

The DR-100 series receivers deliver analogue audio signals and digital audio

signals embedded in the SDI signal.

The equipments have four analogue audio outputs, available on 3-pin male

XLR connectors on the rear panel of the rack-mount demodulator unit.

The pinout of the XLR-3 connectors is the following one:

 PIN-1: Ground

 PIN-2: Hot (+)

 PIN-3: Cold (-)

For the output connections of the digital audio signals embedded in the SDI

signal they can be used the same 75Ω insulated BNC connectors that are

used to transport the digital video signals.

The SDI digital video outputs with the four digital audio signals embedded

in each of them are compatible with the SMPTE-272M standard.

5 DVB-ASI

The DR-100 series receivers have a DVB-ASI Transport Stream output,

compatible with the EN50083-9 standard, available on an insulated 75Ω

BNC connector on the rear panel of the rack-mount demodulator unit.

This output may be extremely useful if an intermediate ASI feed is required

without needing to decode the audio and video signals and then recode

them into MPEG-2 in the transmitter equipment.

6 Genlock

The DR-100 receivers have a Genlock external reference input in order to

lock the video and SDI digital outputs to it. The connection is available on a

75Ω insulated BNC connector located on the rear panel of the rack-mount

demodulator unit.

7 Data Out

The DR-100 receiver can get data introduced to the data channel of the SVP

transmitters. The information is available in a DB9 connector in the rear

panel of the rack equipment.

Chapter 2: Connections

7

The receiver can also be controlled remotely via an RS-232 connection.

From the set up menu the user will establish whether the DB9 port will be

used as a data out port or as a remote control port.

8 Remote control

The DR-100 series receivers can be controlled and monitored remotely over

an Ethernet link.

The link is connected via an 8-pin RJ-45 connector with a 10/100 Base-T

network interface. This connector is located on the rear panel of the rack-

mount demodulator.

9 Down-converter

The connection between the rack-mount demodulator unit and the down-

converter uses coaxial cable, whose maximum length depends on the type

of coaxial cable used. If the Celflex ½” coaxial cable is used, the maximum

length is 150m but if the RG-214 coaxial cable is used, the maximum length

is reduced to 75m.

10 Antenna

The antenna is connected to the female N-type connector on the top panel

of the down-converter.

The down-converter can be mounted next to the receiver antenna on a

mast with a maximum diameter of 60mm. This provides a simple, easy

mounting method, as can be seen in the photograph below:

Figure 10.1 Connection of the receiver antenna

Chapter 2: Connections

8

The fittings to clamp the down-converter to the mast are supplied with the

down-converter.

Chapter 3: Technical features

9

Contents

1Inputs .......................................................................... 10-10

1.1RF Section ....................................................................... 10-10

1.2IF Section ........................................................................ 10-10

1.3Genlock .......................................................................... 10-11

2Outputs ......................................................................... 2-11

2.1SDI (Serial Digital Interface) ................................................ 2-11

2.2Composite video ................................................................. 2-12

2.3Analogue audio outputs ....................................................... 2-12

2.4ASI OUT ............................................................................ 2-13

2.5Data Out ........................................................................... 2-13

3Power supplies ............................................................... 3-13

3.1AC Power .......................................................................... 3-13

3.2DC Power .......................................................................... 3-13

4Remote control ............................................................... 4-14

5Physical characteristics .................................................... 5-14

6Environmental conditions ................................................. 6-14

List of tables

Table 1.1 RF input features ........................................................... 10-10

Table 1.2 IF (Intermediate Frequency) input features ....................... 10-10

Table 1.3 Genlock external reference input features ......................... 10-11

Table 2.1 SDI output features ......................................................... 2-11

Table 2.2 Composite video output features ........................................ 2-12

Table 2.3 Audio output features ....................................................... 2-12

Table 2.4 DVB-ASI Transport Stream output features ......................... 2-13

Table 2.5 Data Out output features .................................................. 2-13

Table 3.1 AC power supply features ................................................. 3-13

Table 3.2 DC power supply features ................................................. 3-13

Table 4.1 Remote control ................................................................ 4-14

Table 5.1 Physical characteristics of the rack-mount demodulator unit .. 5-14

Table 5.2 Physical characteristics of the down-converter ..................... 5-14

Table 6.1 Environmental features .................................................... 6-14

Chapter 3

Technical features

Chapter 3: Technical features

10

1 Inputs

1.1 RF Section

Table 1.1 RF input features

Item Feature

Connector designation RF INPUT

Type of connector Female “N” type

Impedance 50Ω

Input frequency ranges 1.3 to 10.5GHz

(in 500MHz bands)

Noise figure <2 dB

Minimum input signal level QPSK: 1/2: -95 dBm

2/3: -94 dBm

3/4: -93 dBm

5/6: -92 dBm

7/8: -91 dBm

16QAM: 1/2: -87 dBm

2/3: -86 dBm

3/4: -85 dBm

5/6: -84 dBm

7/8: -83 dBm

64QAM: 1/2: -80 dBm

2/3: -79 dBm

3/4: -78 dBm

5/6: -77 dBm

7/8: -76 dBm

IP3 of the internal LNA +33 dBm

Phase noise <-98 dBc/Hz@10KHz

Conversion gain >25dB

Number of poles of the input filter 5 (Interdigital)

Static protection Yes

1.2 IF Section

The DR-100 series receivers have one, two or six IF inputs, depending on the

model (DR-102 or DR-106). The features are shown in the table below:

Table 1.2 IF (Intermediate Frequency) input features

Item Feature

Connector designation Demodulator: IF1...IF6

Down-converter: I.F.

OUTPUT&DC

Type of connector Demodulator: N female

Down-converter: N female

Frequency ranges 48 to 860 MHz

Impedance 50Ω

Maximum length of IF cable RG-214: 75m

Celflex1/2”: 150m

Chapter 3: Technical features

11

Diversity Up to 6 using the MRC

technique (Maximum Ratio

Combining)

Bandwidth 5 MHz, 6 MHz, 7 MHz or 8 MHz

Constellation QPSK, 16-QAM or 64-QAM

Guard interval 1/4, 1/8, 1/16, 1/32

FEC 1/2, 2/3, 3/4, 5/6, 7/8

Mode 2K

1.3 Genlock

The DR-100 series receivers have a Genlock reference input to lock the SDI

digital video outputs to an external source.

Table 1.3 Genlock external reference input features

Item Feature

Connector designation Genlock

Type of connector Insulated BNC female

Impedance 75Ω

Signal level From 0.5 to 4 Vpp

2 Outputs

2.1 SDI (Serial Digital Interface)

The DR-100 series receivers have two SDI digital video outputs, whose features

are shown in the following table:

Table 2.1 SDI output features

Item Feature

Connector designation SDI

Type of connector Insulated BNC female

Impedance 75Ω

Output level 800mVpp nominal ±10%

Return losses > 15 dB, 5-270 MHz

Bitrate 270 Mbit/s

Standard SMPTE-259M

Video decoding standard MPEG-2 (ISO/IEC 13818-2):

- 422P@ML

- MP@ML

-Super low delay

Video format - 525i

-625i

Aspect ratio - 4/3

-16/9

Chapter 3: Technical features

12

2.2 Composite video

The DR-100 series receivers include two composite video outputs. Their features

are shown in the table below:

Table 2.2 Composite video output features

Item Feature

Connector designation VIDEO

Video connector Insulated BNC female

Impedance 75Ω

System PAL

Video decoding standard MPEG-2 (ISO/IEC 13818-2):

- 422P@ML

- MP@ML

-Super low delay

Video format - PAL

-NTSC

Aspect ratio - 4/3.

-16/9.

2.3 Analogue audio outputs

The DR-100 series receiver includes four audio outputs. Their features are

shown in the table below:

Table 2.3 Audio output features

Item Feature

Number of audio channels 4

Connector designations AUDIO 1 LEFT

AUDIO 1 RIGHT

AUDIO 2 LEFT

AUDIO 2 RIGHT

Audio connectors XLR-3 male

Audio output level Line, +15dBm maximum

Impedance 30Ω

Sampling frequency 48 KHz

Audio decoding standard MPEG-1 L2

The pinout of the audio connectors is

 Pin 1=> ground

 Pins 2 and 3 => signals

Chapter 3: Technical features

13

2.4 ASI OUT

Table 2.4 DVB-ASI Transport Stream output features

Item Feature

Connector designation ASI OUT

Type of connector Insulated BNC female

Impedance 75Ω

Standard EN50083-9

Packet length 188/204 bytes

Maximum bitrate 31 Mbit/s

2.5 Data Out/RS-232 remote control

Table 2.5 Data Out output features

Item Feature

Connector designation Data out

Type of connector DB9

Standard RS-232

Output bitrate 2400 to 115.200bps

3 Power supplies

3.1 AC Power

Table 3.1 AC power supply features

Item Feature

Connector designation POWER A.C.

Connector Neutrik MLC

Supply voltage 90-240 V. (50/60Hz)

3.2 DC Power

Table 3.2 DC power supply features

Item Feature

Connector designation POWER D.C.

Connector XLR-4 male

Supply voltage 11-36 V.

Consumption Down-converter:450mA@12V

The pinout is:

 Pins1 and 2 => ground

 Pins 3 and 4 => +11V to +36V

Chapter 3: Technical features

14

4 Remote control

Table 4.1 Remote control

Item Feature

Connector designation ETHERNET

Connector RJ-45 8 pins 10/100 Base-T

The pinout is:

 Pin 1 => TxD+ (out)

 Pin 2 => TxD- (out)

 Pin 3 => RxD+ (in)

 Pin 6 => RxD- (in)

5 Physical characteristics

Table 5.1 Physical characteristics of the rack-mount demodulator unit

Item Feature

Dimensions 1U 19” rack

Depth 330mm

Table 5.2 Physical characteristics of the down-converter

Item Feature

Width 100mm

Height 200mm

Depth 60mm

Weight 1.8Kg

Maximum mast diameter 60mm

6 Environmental conditions

Table 6.1 Environmental features

Item Feature

Operating temperature range -10ºC to +55ºC

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