SVP VR-70 User Manual

10ghz receiver

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SVP

Broadcast

Microwave

VR-70 & DCM-1070

10GHz Receiver

User's Manual

V 1.1

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Page 1 Broadcast Microwave VR-70 & DCM-1070 10GHz Receiver User’s Manual V 1.1...
Page 2: Vr-70 And Dcm User's Manual
Preliminary pages Contents Chapter 1: VR-70 Demodulator and Repeater The objective of this first part is to provide a detailed description of the DR- 100 series receivers. First of all, there is a theoretical explanation of how the equipment works. Secondly, a description of its main characteristics and options is given.
Page 3 Preliminary pages VR-70 and DCM User’s Manual Page 3...
Page 4 Preliminary pages VR-70 and DCM User’s Manual Page 4...
Page 5 DEAR CUSTOMER We would like to thank you for selecting this equipment, and welcome you to the SVP’s growing family products. We are sure that the addition of this equipment to your existing installation will cause you nothing but satisfaction.
Page 6 2. Audio subcarriers of frequencies lower than 7,02MHz are not compatible with 6MHz PAL-D system. 3. The VR-70 repeater and demodulator is able to transmit 6MHz PAL-D signal. 4. There is an incompatibility in the Audio1 subcarrier frequency between PAL-BG and PAL-D standards equipment.
Page 7 Chapter 1 VR-70 Demodulator & Repeater...
Page 8 6. Local control of the equipment ............26 6.1 Introduction ................26 6.2 Using equipment’s menu ............27 6.3 “Monitor Status” Menu .............. 28 6.4 “Setup configuration” menu ............30 6.5 Alarms and/or warnings menu ........... 35 VR-70 and DCM User’s Manual Page 8...
Page 9 Figure 4.4 ALARM button ..............21 Figure 4.5 MENU button ..............21 Figure 4.6 Menu navigation controls ............ 22 Figure 5.1 Back view of the rack-mount VR-70 demodulator ....25 Figure 6.1 Equipment local control configuration ........26 List of tables Table 3.1 I.F Input/Output features ............
Page 10: Theoretical Operation
VR-70 demodulator and repeater. Once fed the IF signal into the VR-70, the signal is filtered by a band-pass active filter and then, amplified by a logarithmic amplifier. The output signal obtained after this process has a 0dBm constant level.
Page 11 It also has a video signal detector. The VR-70 demodulator and repeater can be fed can be fed either by and AC source between 100 and 240V and 50 to 60Hz frequency or by a 12V DC source (battery).
Page 12: Figure 1.1 Vr-70 Receiver's Block Diagram
Chapter 1: VT-70 Modulator Figure 1.1 VR-70 Receiver’s block diagram VR-70 and DCM User’s Manual Page 12...
Page 13: Connections
Figure 2.1 VR-70 demodulator and DCM Down-converter connections 2.1 Power Supply The VR-70 modulator can be feed by and AC source between 100 and 240V or by a DC source of 12 to 14V. The -48V power supply is optional; range from -36 to -72V.
Page 14: Video
Maximum output level is 1Vpp over 75Ω, Standard level. SVP Broadcast Microwave recommends the use of RG-59 video cable. If this type is not used, we recommend that the cable used does not attenuate the high frequencies of the video signal.
Page 15: Audio
Chapter 1: VT-70 Modulator It is important that 75Ω connectors are used. This is because the female output connector of the VR-70 demodulator unit may be damaged and because an impedance mismatch will occur. If the received RF signal does not carry a video signal, the display in the demodulator unit will display VIDEO: OFF and the led next to the ALARM button flashes red.
Page 16 Chapter 1: VT-70 Modulator The cable delivers a 70MHz signal and the DC supply voltage to feed the down-converters. VR-70 and DCM User’s Manual Page 16...
Page 17: Technical Features
System PAL (NTSC optional) Video polarity Internally selectable Signal to Noise ratio >65dB (-40dBm de RF) Differential gain <1% Differential phase <1º Luminance-chrominance delay <10ns Luminance linearity <1% Video response 25Hz to 6MHz VR-70 and DCM User’s Manual Page 17...
Page 18: Audio
Depends on the up-converters used. DC consumption Depends on the up-converters used. 3.6 Physical characteristics Table 3.6 Physical characteristics Item Feature Dimensions 1U rack 19” depth: 360 mm F.I. cable maximum length RG-214 = 100m VR-70 and DCM User’s Manual Page 18...
Page 19: Environmental Conditions
Chapter 1: VT-70 Modulator 3.7 Environmental Conditions Table 3.7 Environmental Conditions Item Feature Operating temperature range -10ºC to +55ºC VR-70 and DCM User’s Manual Page 19...
Page 20: Front Panel Control
Figure 4.1 VR-70 Demodulators ON/OFF button The LED next to this button indicates when the equipment is turned on. The LED lights up in green when the equipment is turned on.
Page 21: Remote Control (Remote)
ALARM button again. Figure 4.4 ALARM button 4.4 Menu This button is used to enter and exit the equipment control menu and submenus. Figure 4.5 MENU button VR-70 and DCM User’s Manual Page 21...
Page 22: Up, Down, Left, Right, Enter
The arrow buttons and the ENT (Enter) button are used to navigate through the menus. Figure 4.6 Menu navigation controls For more details regarding local control of the equipment, see section 6.1 of this manual. VR-70 and DCM User’s Manual Page 22...
Page 23: Rear Panel Connectors And Fuses
5.5 Audio 1 output connector (AUDIO 1) Balanced audio output connector is an XLR-3 male. The pinout of the audio connector is: Pin 1: ground Pins 2 and 3: signals VR-70 and DCM User’s Manual Page 23...
Page 24: Audio 2 Output Connector (Audio 2)
The output video connector is 75Ω BNC type. The output signal standard level is 1Vpp. 5.11 Up-Converter output (UP-CONVERTER) N type connector is used to connect an up-converter so that the VR-70 works as a repeater, no demodulating the signal. VR-70 and DCM User’s Manual...
Page 25: Down-Converter Input (Down-Converter)
5.12 Down-Converter input (DOWN-CONVERTER) N type connectors are used to connect the down-converter. In the figure below the rear panel of the VR-70 demodulator is shown. Figure 5.1 Back view of the rack-mount VR-70 demodulator VR-70 and DCM User’s Manual...
Page 26: Local Control Of The Equipment
The power supply to the down-converter is disabled in the demodulator. The power supply to the down-converter is not enough to feed it. The same happens when the VR-70 equipment does no detect the up- converter. The display in the VR-70 will show: Up-converter: <<Not present>>.
Page 27: Using Equipment's Menu
The power supply to the up-converter is disabled in the VR-70. The power supply of the VR-70 to feed the up-converter is not enough. When the user stops manipulating the equipment (when several seconds have passed since the last order), the display’s luminosity is reduced to save energy.
Page 28: Monitor Status" Menu
It can not be used to configure these parameters. This section contains a detailed description of all the parameters that can be monitored or displayed with the MONITOR STATUS menu of the VR-70 demodulator. To enter this menu, press the MENU button, use the UP and DOWN buttons to select the MONITOR STATUS menu, and then press the ENT button.
Page 29 Mute is triggered. This value can be defined in the “Setup Configuration” menu. Transmission frequency in MHz. When the frequency is manually configured by the channel selector in the UCM up converter, the VR-70 displays the channel number and the transmission frequency preceded by blinking MN characters. frequency...
Page 30: Setup Configuration" Menu
“No alarms” and “No warnings”. To exit any submenu, press the MENU button. If the user does no press any button during several minutes, the VR-70 demodulator will automatically exit the menu or submenu it was left in and displays the main screen (in one hand reception power and frequency and on the other hand, transmission power and frequency).
Page 31: Table 6.2 "Setup Configuration" Menu
Chapter 1: VT-70 Modulator This section contains a detailed description of each of the parameters that can be configured in the VR-70 demodulator and repeater. To enter the SETUP CONFIGURATION menu, press the MENU button, use UP and DOWN buttons to select the SETUP CONFIGURATION menu, then press ENT button again.
Page 32 Reception frequency To configure reception frequency in the DCM down-converter via VR-70 demodulator, the channel selector in the DCM down-converter has to be in 0 position. Next, move to line 1 in the SETUP CONFIGURATION menu using UP and DOWN buttons, then press the ENT button.
Page 33 IF coaxial cable. Transmission frequency To configure transmission frequency in the UCM up-converter via VR-70 demodulator, channel selector in the UCM up-converter has to be in 0 position. Next, move to line 7 in the SETUP CONFIGURATION menu using UP and DOWN buttons, then press the ENT button.
Page 34 In this submenu the following locations can be configured: • Location of the VR-70 demodulator: pressing the ENT button, the cursor will be placed over the first letter. The UP and DOWN arrows will change the character in alphabetical order. To change to other characters, press the LEFT and RIGHT buttons until the cursor is over the character to be changed.
Page 35: Alarms And/Or Warnings Menu
If this LED lights in orange, the equipment indicates that there are one of more warnings. If this LED lights in red, the equipment has one or more alarms, although there may also be some warnings. VR-70 and DCM User’s Manual Page 35...
Page 36 When the VR-70 modulator detects a communication failure with DCM down-converter, the LED next to ALARM button lights red. If the down-converter is disabled the VR-70 does not show any alarm. Down-converter temperature: if the temperature inside the down- converter reaches or exceeds 75ºC, an alarm is triggered and the red...
Page 37 LED next to alarm button lights. Parameters that can cause warnings VR-70 modulator using battery power (Rack Battery Working): if the equipment is only receiving battery power, it displays a warning, and the LED next to the Alarm button lights in orange Received signal level.
Page 38 Chapter 2 Multi-frequency Down-Converter DCM-1070 series...
Page 39 Table 2.1 DCM 1070 RF features ............44 Table 2.2 Power supply features ............44 Table 2.3 Consumption ..............44 Table 2.4 Physical characteristics ............44 Table 2.5 Environmental conditions ............. 45 Table 2.1 Technical features ............... 66 VR-70 & DCM User’s Manual Page 39...
Page 40 Chapter 2: Multi-frequency Down-Converter DCM-0270, DCM-0770 & DCM-1070 series IMPORTANT: Input signals higher than -20dBm can damage the equipment. VR-70 & DCM User’s Manual Page 40...
Page 41 VR-70 demodulator and repeater (sending data to configure the DCM down-converter through the data channel, IF coaxial cable). To configure the reception frequency from the VR-70 demodulator’s SETUP CONFIGURATION menu, the channel selector of the down-converter has to be in 0 position.
Page 42 If the LED is out, it can happen that either there is short-circuit or a cut in the coaxial cable or that the power supply is disabled in the VR-70 demodulator.
Page 43 The result of this second mix is a 70MHz signal that is then filtered and put in the 70MHz output I.F. connector. The power supply voltage from the VR-70 demodulator is removed from the I.F. output using a choke power coil.
Page 44: Power Supply
N female (I.F. output) 2.3 Consumption Table 2.3 Consumption Item Specifications Consumption 400mA 2.4 Physical characteristics Table 2.4 Physical characteristics Item Specifications Dimensions: 200 x 200 x 70 Width x Height x depth (mm) VR-70 & DCM User’s Manual Page 44...
Page 45 Chapter 2: Multi-frequency Down-Converter DCM-0270, DCM-0770 & DCM-1070 series 2.5 Environmental conditions Table 2.5 Environmental conditions Item Specifications Operating temperature range -10ºC to 60ºC VR-70 & DCM User’s Manual Page 45...
Page 46 Chapter 3: Parabolic antenna installation Chapter 3 Parabolic antenna Installation...
Page 47 Chapter 3: Parabolic antenna installation Contents 1. General installation instructions ............48 2. Parabolic antenna assembly for a point to point link ......50 List of figures Figure 1.1 Parabolic antenna and up-converter installation in a mast ..48 Figure 1.2 Parabolic antenna and up-converter installation for a point to point link ..................
Page 48: General Installation Instructions
Chapter 3: Parabolic antenna installation 1. General installation instructions Figure 1.1 Parabolic antenna and up-converter installation in a mast Page 48 VT-70 and UCM up-converter user’s manual...
Page 49 Chapter 3: Parabolic antenna installation Figure 1.2 Parabolic antenna and up-converter installation for a point to point link Page 49 VT-70 and UCM up-converter user’s manual...
Page 50 Chapter 3: Parabolic antenna installation 2. Parabolic antenna assembly for a point to point link Page 50 VT-70 and UCM up-converter user’s manual...
Page 51 Chapter 3: Parabolic antenna installation Page 51 VT-70 and UCM up-converter user’s manual...
Page 52 Chapter 3: Parabolic antenna installation Page 52 VT-70 and UCM up-converter user’s manual...
Page 53 Chapter 3: Parabolic antenna installation Page 53 VT-70 and UCM up-converter user’s manual...
Page 54 Chapter 3: Parabolic antenna installation Page 54 VT-70 and UCM up-converter user’s manual...
Page 55 Chapter 3: Parabolic antenna installation Page 55 VT-70 and UCM up-converter user’s manual...
Page 56 Chapter 3: Parabolic antenna installation Page 56 VT-70 and UCM up-converter user’s manual...
Page 57 Chapter 3: Parabolic antenna installation Page 57 VT-70 and UCM up-converter user’s manual...
Page 58 Chapter 3: Parabolic antenna installation Page 58 VT-70 and UCM up-converter user’s manual...
Page 59 Chapter 3: Parabolic antenna installation Page 59 VT-70 and UCM up-converter user’s manual...
Page 60 Chapter 3: Parabolic antenna installation Page 60 VT-70 and UCM up-converter user’s manual...
Page 61 Chapter 3: Parabolic antenna installation Page 61 VT-70 and UCM up-converter user’s manual...
Page 62 Chapter 3: Parabolic antenna installation Page 62 VT-70 and UCM up-converter user’s manual...
Page 63 Chapter 4 MD-70 External Signal Meter...
Page 64 Chapter 4:MD-70 External Signal Meter Contents 1. MD 70 description ................. 65 2. Technical features ................. 66 List of tables Table 2.1 Technical features ............... 66 VR-70 & DCM User’s Manual Page 64...
Page 65 It is weatherproof and very robust. This is an instrument that will help in the installation of the links and will allow an excellent control of the maintenance parameters. VR-70 & DCM User’s Manual Page 65...
Page 66 Chapter 4:MD-70 External Signal Meter 2. Technical features Table 2.1 Technical features Item Specifications Power supply +8 to 25 V. DC Connector 4 pin 0B Lemo series Cable length 1m (other cable lengths upon request VR-70 & DCM User’s Manual Page 66...
Page 67 NOTES: VR-70 & DCM User’s Manual Page 67...
Page 68 Final note SVP Broadcast Microwave S.L. is constantly striving to improve all of its products. Therefore, we ask you to understand that modifications may occur in designs, equipment and technology. Consequently, no responsibility can be derived from the information, illustrations or descriptions contained in this manual.
Page 69 SVP Broadcast Microwave reserves the right to make changes to this manual and to the equipment without prior notice. Broadcast Microwave C/Uralde, 2 48215 Iurreta Vizcaya – España Tel: (+34) 94620 3722 svpbm@svpbm.com www.svpbm.com...

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