Gigawave reserves the right to alter the equipment and specification appertaining to the equipment described in this manual without notification.

Transcription

1 The information contained in this manual remains the property of Gigawave and may not be used, disclosed or reproduced in any other form whatsoever without the prior written permission of Gigawave. Gigawave reserves the right to alter the equipment and specification appertaining to the equipment described in this manual without notification. MTV-HD3 RECEIVER H264/MPEG-4 and MPEG-2 version OPERATOR S MANUAL Copyright 2011 Gigawave Limited MTV3- ASUM page 1 of 25

2 CONTENTS 1 GENERAL SAFETY INFORMATION Health & Safety Maximum RF Power Density Limits Issue Status GENERAL DESCRIPTION RECEIVER SPECIFICATIONS PIN CONNECTIONS Front panel SDI /ASI quantity 2 (BNC connectors) Genlock input CVBS, YUV, Y/C Audio Connectors Remote control/user Data Connector Rear panel Power Connector V DC RF Inputs (2 way diversity) USB / Ethernet CONFIGURING THE RECEIVER On / Off switch Operator Controls / Menus Video monitoring on the front panel LCD screen Current status and alarm screens Status overview screen Status and alarm screens Signal status Service information Decoder information Unit status and alarms Setup menus Ch / Frequency Menu MTV3- ASUM page 2 of 25

3 Channel Frequency Spectrum and bandwidth Genlock Inputs (decoder signal loss video output mode) Outputs Analogue outputs Video Analogue audio level adjustment Audio output impedance Digital outputs Services (MPEG decoder set up) Output ports User data USB port Ethernet port General settings Software versions Display Unit name Advanced mode USB upgrade Decryption Receiver menu Tree PREPARING FOR OPERATION The MTV-HD3 receiver Antennas Checks Transmitter / Receiver tests TABLE OF COFDM BIT RATES DVB-T bit rates ISDB-T bit rates MTV3- ASUM page 3 of 25

4 1 GENERAL SAFETY INFORMATION The information that follows, together with local site regulations, must be studied by personnel concerned with the operation or maintenance of the equipment, to ensure awareness of potential hazards. WARNING- RF Power Hazard : High levels of RF power are present in the unit. Exposure to RF or microwave power can cause burns and may be harmful to health. Switch off supplies before removing covers or disconnecting any RF cables, and before inspecting damaged cables or antennas. Avoid standing in front of high gain antennas (such as a dish) and never look into the open end of a waveguide or cable where RF power may be present. Users are strongly recommended to return any equipment that requires RF servicing to Gigawave. WARNING- GaAs / BeO Hazard : Certain components inside the equipment contain Gallium Arsenide and Beryllium Oxide that are toxic substances. Whilst safe to handle under normal circumstances, individual components must not be cut, broken apart, incinerated or chemically processed. In the case of Beryllium Oxide, a white ceramic material, the principal hazard is from the dust or fumes which are carcinogenic if ingested, inhaled or entering damaged skin. Please consult your local authority before disposing of these components. CAUTION- Tantalum Capacitors : When subjected to reverse or excess forward voltage, ripple current or temperature these components may rupture and could potentially cause personal injury. CAUTION : This system contains MOS devices. Electro-Static Discharge (ESD) precautions should be employed to prevent accidental damage. MTV3- ASUM page 4 of 25

5 1.1 Health & Safety Exposure to Non Ionising (RF) Radiation/Safe Working Distances The safe working distance from a transmitting antenna may be calculated from the relationship: D = PT. GR 4.w in which D = safe working distance (meters) PT = transmitter or combiner power output (watts) GR = antenna gain ratio = anti log (gain dbi 10) w = Maximum allowed power density (watts/square meter) The RF power density value is determined by reference to safety guidelines for exposure of the human body to non-ionising radiation. It is important to note that the guidelines adopted differ throughout the world and are from time-to-time re-issued with revised guidelines. For Gigawave use, a maximum power density limit (w) of 1w/m² is to be applied when calculating minimum safe working distances. Appendix A refers. Important Note: It must be remembered that any transmitting equipment radiating power at frequencies of 100 KHz and higher, has the potential to produce thermal and athermal effects upon the human body. To be safe: a) Operators should not stand or walk in front of any antenna, nor should they allow anyone else to do so. b) Operators should not operate any RF receiver or power amplifier with any of its covers removed, nor should they allow anyone else to do so. Worked examples Antenna Receiver Power Type Gain (dbi) Gain Ratio 2W 4W 10W 30W OMNI HELIX PARABOLIC DISH 35 3, MINIMUM SAFE DISTANCE (METRES) MTV3- ASUM page 5 of 25

6 1.2 Maximum RF Power Density Limits The RF Radiation Power Density limit figure recommended by Gigawave is based upon guideline levels published in: a. IEEE standard C IEEE Standard for Safety Levels with respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 KHz to 300 GHz. b. Guidelines for Limiting Exposure to Time-varying Electric, Magnetic & Electromagnetic Fields (up to 300 GHz) published in 1998 by the Secretariat of the International Commission on Non-Ionising Radiation Protection (ICNIRP). Both documents define guideline RF power density limits for "Controlled" and "Uncontrolled" environments. An uncontrolled environment is defined as one in which the person subjected to the RF radiation may be unaware of and has no control over the radiation energy received. The uncontrolled environment conditions can arise, even in the best regulated operations and for this reason the limits defined for the uncontrolled environment have been assumed for the Gigawave recommended limit. Documents a) and b) also show the RF power density guidelines to be frequency dependent. Different power density / frequency characteristics are presented in the two documents. To avoid complexity and to avoid areas of uncertainty, Gigawave recommends the use of a single power density limit across the frequency range 100 KHz to 300 GHz. The 1w/m² power density limit we recommend satisfies the most stringent of the guidelines published to date. Footnote: The IICNIRP document may be freely downloaded from the internet at (PDF file), the IEEE standard is available on loan from Essex County Library on payment of a search fee. 1.3 Issue Status Issue Date Changes 1 5 th March 2010 first issue 2 24 th March 2010 Revised connections paragraphs and th April 2010 Video monitoring on front panel LCD added 4 14 th April 2011 Ethernet port pin connections, detail expanded 5 18 th Dec 2011 MPEG-2, H264/MPEG-4 decoder introduced MTV3- ASUM page 6 of 25

7 2 GENERAL DESCRIPTION The Gigawave MTV-HD3 mini receiver is designed for all applications, both indoor and outdoor, where a very small light-weight unit is essential to the operation. The unit features two-way diversity reception using Maximum Ratio Combining technology The receiver is comprised of a single miniature unit that contains RF down-converter COFDM demodulator MPEG decoder and video/audio output circuitry. This version of the receiver features both MPEG-2 and H264/MPEG-4 decoding with automatic selection. In HD mode, in addition to the HD SDI output, the unit provides a down-converted to SD monitoring quality output at the CVBS port. Video picture monitoring is available on the full colour front panel LCD screen. The unit provides 4 audios ( 2 stereo) with analogue, SDI embedded and AES/EBU digital outputs. The receiver powers from 10 to 32VDC, and outputs HD SDI, SD SDI and analogue composite video (CVBS), component Y/U/V and Y/C, and ASI, Audio outputs are analogue, SDI embedded and AES/EBU digital audio. The receiver can be used with a variety of Gigawave antennas:- PA series Low profile antennas are used for uplinking ground to air, or on-board linking HX series antennas offer increased gain and directivity FBA fan-beam antennas offer increased gain and 90 degree sector coverage. Parabolic antennas offer the highest gain, and longest operational range Full details are given in the Gigawave Antennas data sheet. At the transmitting site a range of Gigawave digital transmitters may be used. For example the complementary MTV-HD2 and D-Cam Clip-On, and MVL-D2 transmitters in both H264 and MPEG- 2 versons. Please consult the separate manual for information detailing the operation of transmitters. MTV3- ASUM page 7 of 25

8 3 RECEIVER SPECIFICATIONS RF Input 2x RF, N Type Frequency Band GHz band Tuning Range 300MHz standard bandwidth (wider bandwidths available to special order) Frequency Selection Up to 16 pre-set channels or tuning in 1MHz steps via front panel control. Programmable with 1MHz resolution to customer requirements within available bandwidth (500kHz steps available to special order) Receiver Noise Factor 4dB (nom.) Receiver Threshold -92dBm to BER 10-5 (nom., QPSK) Receive Antenna Compatible with all Gigawave antennas Demodulation COFDM DVB-T 2k 2 way Maximum Ratio Combining Diversity reception Demodulation Modes DVB-T ISDB-T (factory option) QPSK, 16QAM, 64QAM FEC:1/2, 2/3, 3/4, 5/6, 7/8 Guard interval: 1/32, 1/16. 1/8, 1/4 Data Rate 4.98 to 31.7 Mbit/s (automatic selection) Bandwidth 6, 7, 8MHz Decoding H264/MPEG-4 and MPEG-2 (automatic selection). Latency Transmitter encoder dependant Video Output HD SDI SMPTE-292M (299M) SD SDI SMPTE-259M (272M) Analogue: composite (PAL/NTSC) Analogue: component (YUV, YC) HD down-converted to SD CVBS monitor Video formats 1080i 1920 x 1080, 25 and 29.5Hz 720p 1280 x 720, 50 and 59Hz 480i (NTSC) 720 x i (PAL) 720 x 576 ASI Output DVB ASI transport stream, 188 / 204 selectable Genlock Genlock input type, SD video composite black/burst HD video tri-level sync Genlock timing offset feature MTV3- ASUM page 8 of 25

9 Audio Outputs Digital 2 x AES3 plus SDI embedded Analogue 2 x stereo / 4 mono User auxiliary data Selectable 1200 to 230,400 baud Power Supply 10 to 32VDC, 26 Watts typical Monitoring Video picture monitoring on the full colour LCD front panel display Comprehensive control and monitoring menu via front panel control COFDM demodulator parameters RF Received signal level (dbm and bar graph) C/N, MER, BER (db and bar graph) Summary comprehensive internal lock alarms Remote control Remote control and monitoring via Ethernet port USB software upgrade Software upgrade via rear panel USB port Size 70mm high x 179 wide x 280 deep Weight 2.9kg (6.4lbs) Environmental Safe use: -20 to +50 C To spec: -10 to +45 C Altitude: 4500m Humidity: 95% long term Mechanical Interface Standard wedge plate compatible with all Gigawave interfaces. Specifications may alter at the discretion of Gigawave or to meet customer specific requirements. MTV3- ASUM page 9 of 25

10 4 PIN CONNECTIONS 4.1 Front panel SDI /ASI quantity 2 (BNC connectors) Two outputs for either SDI or ASI. Each may be Independently selected via front panel menu system. See BNC connector Genlock input Reference input for Genlock. Analogue CVBS or Tri level sync. 75 BNC connector CVBS, YUV, Y/C Analogue SD video, Composite PAL/NTSC (CVBS) or component YC / YUV Connector Type: 6 pin LEMO connector EGG.1B.306.CLN Pin Video CVBS YC YUV 1 Y(0v) Y(0v) 2 Y Y 3 0V U(0v) 4 CVBS U 5 C(0v) V(0v) 6 C V Note: The wiring of this connector is different from the corresponding connector used on the MTV-D2 TX and Clip-On Tx MTV3- ASUM page 10 of 25

11 4.1.4 Audio Connectors Line level output AUDIO CH 1 & 2 Connector Type: 8 pin LEMO connector EGG.1B.308.CLN 1 channel AES3/EBU Stream, plus 2 x analogue (mono) audio outputs AUDIO CH 3 & 4 Pin 1 Analogue Ground 2 A1 / Left +ve 3 A1 / Left -ve 4 A2 / Right +ve 5 A2 / Right -ve 6 Digital Ground 7 Digital +ve 8 Digital ve Connector Type: 8 pin LEMO connector EGG.1B.308.CLN 1 channel AES3/EBU Stream, plus 2 x analogue (mono) audio outputs Pin 1 Analogue Ground 2 A3 / Left +ve 3 A3 / Left -ve 4 A4 / Right +ve 5 A4 / Right -ve 6 Digital Ground 7 Digital +ve 8 Digital ve MTV3- ASUM page 11 of 25

12 4.1.5 Remote control/user Data Connector Connector Type: 7 pin LEMO connector EGG.1B.307.CLN Dual purpose connector User data output - RS232, see MTV-HD3 RECEIVER remote control using RS232 or RS485, factory option (alternative to remote control via Ethernet, see 4.2.4) Pin note 1 0v 2 User Data Tx (out) 3 User Data Rx (in) 4 Tx+ (out) For RS232 use 5 Tx- (out) only ve 6 Rx+ (in) connections 7 Rx- (in) 4.2 Rear panel Power Connector V DC Connector Type: Input range: 4 pin LEMO connector EGG.1B.304.CLN 10V to 35V DC. Pin Function 1 0V 2 0V 3 +12V 4 +12V MTV3- ASUM page 12 of 25

13 4.2.3 RF Inputs (2 way diversity) Connector Type: 50Ω N (F) - quantity USB / Ethernet Connector Type: 8 pin LEMO connector EGG.1B.308.CLN Dual purpose connector Ethernet port for remote control and monitoring (web browser interface), see USB port for unit software upgrade Lemo pin function RJ45 wiring USB wiring 1 TX+ Pin 1 Orange/white 2 TX- Ethernet Pin 2 Orange 3 RX+ Pin 3 Green/white 4 RX- Pin 6 Green 5 0v Gnd Pin 4 Black 6 USB_p USB Pin 3 Green 7 USB_n Pin 2 White 8 +5v out Pin 1 Red MTV3- ASUM page 13 of 25

14 5.1 On / Off switch 5 CONFIGURING THE RECEIVER To turn the unit on, press the non-locking on/off button on the front panel and hold down for 1 to 2 seconds until the LCD screen illuminates and the unit begins to power up. To turn the unit off, press the non-locking on/off button on the front panel and hold down for 2 to 5 seconds until the unit powers down. 5.2 Operator Controls / Menus The MTV-HD3 receiver is configured using an LCD display and six push buttons. arranged as four navigation buttons ( ), OK and ESC (escape). These are The OK button is used to store a modified parameter in non-volatile memory, this parameter will then be used to configure the MTV-HD3 receiver and will also become the default value when next powered on. The ESC button can be used to exit a menu without storing the parameter in memory. 5.3 Video monitoring on the front panel LCD screen Received video picture monitoring is available on the full colour front panel LCD screen. To access the function navigate to the Overview screen by repeatedly pressing the ESC button, the press the left key,. To navigate away from the video monitoring function press the key. 5.4 Current status and alarm screens These screens show the current status of the unit, and whether any alarms are present. To navigate between the status and alarm screens, press the ESC button several times to reach the Status screen and use the button Status overview screen This is the display screen during normal operation of the MTV-HD3 receiver and indicates the Channel number, and Rx frequency. Provided the receiver is receiving a signal from the transmitter, the display will show the modulation, the FEC code rate, the guard interval and the RF bandwidth. When the receiver is locked to the transmitter and there are no alarms the button at the top left will show green. MTV3- ASUM page 14 of 25

15 5.4.2 Status and alarm screens These screens are accessed from the Overview screen by repeatedly pressing the button Signal status The following functions are displayed:- Carrier to noise (C/N) for the two RF inputs MER (modulation error ratio Receiver input level (RSSI) Bit error rate (BER) Packet error count (PEC) Note: The PEC shows cumulative errors, the readout may be set to zero by pressing the key Service information The following functions are displayed:- Service name Service ID Encryption status Transport stream PIDs MTV3- ASUM page 15 of 25

16 Decoder information The following functions are displayed:- ASI status Network name Transport stream rate Compression type MPEG-2 or H264 Video format Genlock status Unit status and alarms Provides the alarm status of individual modules within the receiver 5.5 Setup menus To access the setup menus for the Status screens press the OK button. Use the keys to reach the required setup function and press the OK button. Note: The functions provided in the setup menu depends on whether Advanced mode is set to Enabled or Disabled in the General settings menu. The Advanced mode provides additional features and is password protected. see paragraph Ch / Frequency Menu Channel This menu is used to select one of the sixteen pre-channels (CH1 Ch16) or manual frequency. The manual frequency is set in MTV3- ASUM page 16 of 25

17 Frequency Displays the frequencies assigned for the 16 preset channels. The Man setting allows the transmit frequency to be set in 1MHz steps anywhere within the TX operating band. The OK button allows the buttons to select the required digit, the buttons then select the required value. The OK button then stores the value. Note: In Advanced Enabled mode the frequencies of the preset channels may be re-assigned. See Spectrum and bandwidth Allows the RF bandwidth of the COFDM signal to be set to 6, 7, or 8MHz. Allows the RF spectrum to be set to either Normal or Inverted Allows the Automatic Spectrum selection function to be enabled or disabled Note: This function is only available in Advanced/Enabled mode. See Genlock The Genlock function of the receiver may enabled or disabled. The Genlock reference may be set to analogue black and burst, or tri-level sync. The video format may be set - e.g. 1080i Additionally the timing reference of the Genlock function may be off-set from the reference input according to the V and H +/- delay functions Inputs (decoder signal loss video output mode) On loss of decoder lock, this function allows the video output to be set to:- Either - last image Or - Blue screen Outputs Analogue outputs Video. The video output from the 6 pin Lemo connector on the receiver front panel may be set to: Either - Composite video (CVBS) plus Component Y/C Or - Component Y, U, V Analogue audio level adjustment The receiver has 4 analogue audio outputs, arranged as two stereo pairs. Level adjustment is provided a +5/-18dB in 0.1dB steps, on the nominal 0dB independently for pair 1 and pair 2. MTV3- ASUM page 17 of 25

18 Audio output impedance The analogue audio output impedance may be set to either 600 Ohms or Low impedance Note: This function is only available in Advanced/Enabled. See Digital outputs The two BNC digital outputs on the receiver front panel may independently be set to: Either - SDI (SD or HD depending on the received signal video format) Or - ASI Services (MPEG decoder set up) The internal MPEG decoder in the receiver may be set to decode video services in the received transport stream. Three modes are provided:- a) PID Auto. the decoder will automatically detect the first video program in the received transport stream and decode it. The decoded video and audio will be presented at the output connectors of the receiver. (recommended configuration) b) Service based Where several video Services are contained in the received transport stream, the number of Services will be displayed, and the operator may select the required Service to be decoded, based on the Service name. c) PID Fixed where more than one video program is contained in the received transport stream, the operator may manually enter the PIDs of the required program to be decoded. Note, this method should be used by skilled operators only, the PIDs contained in the transport stream coming from the transmitter must be known by the operator prior to selecting this option Output ports User data In addition to video and audio the receiver may also carry User data coming from the transmitter. As an example; this function may be used for telemetry from sensors on On-boards, or reverse camera control data to a wireless camera OCP unit. The user data Baud rate may be set in the range 4.8k to 2M Baud The output interface may be set to either RS232 or RS485/422 The parity may be set to none/odd/even The PID for the User data may be assigned USB port The USB port on the rear panel may be used for software upgrade of the receiver, for pin connections see MTV3- ASUM page 18 of 25

19 Ethernet port The Ethernet port on the rear panel may be used for remote control and monitoring of the receiver via a web browser interface, for pin connections see To access the function, type the IP address, as mentioned below, into the browser address bar. The default password is Gigawave; if required the password may be modified by the user. Ethernet control may be enabled or disabled. If enabled the IP address may be allocated by DHCP server, or manually SSH (Secure Shell) network protocol may enabled/disabled. SSH uses SSH - Protocol 2 connection type with Blown Fish cipher in 256bit asymmetric key + XTC + Salt mode. This option should be left disabled if not used General settings Software versions This menu provides a readout of the issue versions of the software installed on the receiver. This information may occasionally be used in communication with the factory for customer service purposes Display Allows the back ground for the LCD colour display to set according to operator preference, Unit name Provides a readout of the Unit Name. The name is fixed the factory Advanced mode The Functions provided in the Setup Menus depend on whether Advanced mode is set to Enabled or Disabled in the General settings menu. When Advanced mode is enabled additional features appear as green text in some menus. The Advanced/enabled mode also allows the 16 preset channel frequency to be changed by the operator, in advanced/disabled mode this feature is greyed out The Advanced mode is password protected. The factory default is 0000, the password may be changed by user if required USB upgrade This feature allows the software in the MTV-HD3 receiver to be upgraded via the USB port on the rear panel of the unit. Instructions for the upgrade procedure are provided by the factory with the new software. MTV3- ASUM page 19 of 25

20 5.5.8 Decryption As a factory option, the receiver may be enabled to receive encrypted video signals according to the EU ETSI scrambling algorithm, BISS modes 1 and E. Set up of the BISS de-scrambling keys is through this menu. The MTV-HD3 receiver may either be configured to use a single key for all receiver channels, or allow different keys for each channel. A detailed explanation of the principles of BISS encryption, plus the selection and operation of encryption is given in the separate Gigawave manual, which is available from the factory on request. Note: This function is only available in Advanced/Enabled mode. See MTV3- ASUM page 20 of 25

21 5.5.9 Receiver menu Tree Note: Items shown in green are only available in Advanced mode. Channel frequency Genlock Inputs Outputs Services Channel Frequency Spectrum and Bandwidth Type Video type V Delay H Delay Decoder signal loss Analogue Digital Auto PID Service no Manual PID Bandwidth Automatic spectrum Spectrum Blue screen Last image Video type Audio level Pair 1 Audio level pair 2 Audio impedance Output 1 Output 2 Prog. Map PID PCR PID Video PID Audio 1 PID Audio 2 PID MTV3- ASUM page 21 of 25

22 Output ports General settings Decryption User data Remote Ethernet Software version Display Unit name Advanced mode USB upgrade Configure Unit setup or channel X setting PID Interface type Baud rate Parity Local Int type Enable/disable Allow SSH Theme Enable / disable Change PIN Enable/disable Per ch.. Setup BISS level BISS-E ID type BISS-1 key BISS-E ESW Injected ID Buried ID MTV3- ASUM page 22 of 25

23 6 PREPARING FOR OPERATION EQUIPMENT PREPARATION Before leaving the equipment base to undertake an operation it is recommended that the following equipment checks be made. 6.1 The MTV-HD3 receiver Antennas The MTV-HD3 receiver can be used with a variety of Gigawave antennas CO series Omni antennas are typically used for ground based mobile operations, or helicopter air to ground PA series Low profile antennas are used for uplinking ground to air, or on-board linking HX series antennas offer increased gain and directivity FBA fan-beam antennas offer increased gain and 90 degree sector coverage. Parabolic antennas offer the highest gain, and longest operation range Full details are given in the Gigawave Antennas data sheet Checks The receiver may be powered from an external DC PSU, or by batteries. Check that any batteries to be used are fully charged and that an emergency spare battery is available and fully charged. Confirm the correct frequency is selected Confirm that the correct digital outputs are selected, SDI or ASI Confirm the correct Video format for Genlock is selected Confirm the correct Analogue Audio level is selected Confirm that the correct MPEG decoder setting for video Services is selected Check that the Video, audio, DC and RF cables are in good condition. 6.2 Transmitter / Receiver tests Whenever practical, set up the system and trial it before leaving for site to ensure that all components of the system are working. Checking at base, where adjustments and corrective actions can be made, will pay off when setting up at site. MTV3- ASUM page 23 of 25

24 7 Table of COFDM bit rates 7.1 DVB-T bit rates DVB-T Bit Rates - 6 MHz CODE RATE Guard interval = 1/32 Guard interval = 1/8 Guard interval = 1/4 QPSK 16QAM 64QAM QPSK 16QAM 64QAM QPSK 16QAM 64QAM 1/ / / / / DVB-T Bit Rates - 7 MHz CODE RATE Guard interval = 1/32 Guard interval = 1/8 Guard interval = 1/4 QPSK 16QAM 64QAM QPSK 16QAM 64QAM QPSK 16QAM 64QAM 1/ / / / / DVB-T Bit Rates - 8 MHz CODE RATE Guard interval = 1/32 Guard interval = 1/8 Guard interval = 1/4 QPSK 16QAM 64QAM QPSK 16QAM 64QAM QPSK 16QAM 64QAM 1/ / / / / MTV3- ASUM page 24 of 25

25 7.2 ISDB-T bit rates ISDB-T Bit Rates - 6 MHz CODE RATE Guard interval = 1/32 Guard interval = 1/8 Guard interval = 1/4 QPSK 16QAM 64QAM QPSK 16QAM 64QAM QPSK 16QAM 64QAM 1/ / / / / ISDB-T Bit Rates - 7 MHz CODE RATE Guard interval = 1/32 Guard interval = 1/8 Guard interval = 1/4 QPSK 16QAM 64QAM QPSK 16QAM 64QAM QPSK 16QAM 64QAM 1/ / / / / MTV3- ASUM page 25 of 25