Novra A75 ATSC Receiver
User Manual
Subject to change without notification
Version: 1.02 Confidential and Proprietary 1 of 32
CAUTION: Any changes or modifications not expressly approved by the manufacturer could
void the user's authority to operate this equipment.
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Novra A75
ATSC Receiver
User Manual
Subject to change without notification
Document version: 1.02
________________________________
Important- Please read this entire manual before installing or operating this product.
________________________________
Disclaimer
While reasonable effort has been made in the preparation of this document to ensure its accuracy, Novra
Technologies Inc. assumes no responsibility for errors or omissions that may appear in this manual. Novra
reserves the right to change the contents of this manual at any time without notice.
Copyright
© 2007 Novra Technologies Inc. All rights reserved.
Information in this manual is subject to change without notice. No part of this manual may be reproduced or
transmitted in any form without the express written permission of Novra Technologies Inc.
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INDEX Page
1 Conventions ...........................................................................................................5
1.1 Text Conventions .............................................................................................5
1.2 Applicable Models ............................................................................................5
2 Introduction.............................................................................................................6
2.1 Principles of Operation......................................................................................6
3 Getting Started........................................................................................................7
3.1 What your configuration may look like................................................................7
3.2 What Information do I Need – Basic Configuration? ............................................8
3.3 SOFTWARE Installation on Windows 2000, or XP..............................................9
3.4 A75 Startup and Main Screen............................................................................9
4 Configuring the A75 ..............................................................................................12
4.1 Configure.......................................................................................................12
4.1.1 Network Button........................................................................................12
4.1.2 Channel Button........................................................................................15
4.1.3 Content Button........................................................................................16
4.1.3.1 Adding Video PIDs ...............................................................................17
4.1.4 Reset Button...........................................................................................19
4.2 Load/Save Button...........................................................................................20
4.2.1 Save last Configuration to a File...............................................................20
4.2.2 Create a Configuration File from the Current Device ..................................21
4.2.3 Load a Configuration File and Apply All.....................................................22
4.2.4 Load a Configuration File .........................................................................23
4.3 Status Button.................................................................................................24
5 Troubleshooting ....................................................................................................25
6 Specifications .......................................................................................................28
6.1 Receiver Characteristics.................................................................................28
6.2 Minimum System Requirements......................................................................29
6.3 Supplied Equipment .......................................................................................29
APPENDIX 22
Terms, Definitions, and Tidbits of Information
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should not be ignored.
1 Conventions
1.1 Text Conventions
• Text appearing in Courier font indicates characters to be typed in; e.g. type Shell indicates that
the word “Shell” must be entered exactly as it appears, with the first letter capitalized.
• Text appearing in Bookman Old Style font indicates a directory path or filename; e.g. c:\Program
Files.
• Text appearing in SMALL CAPS and CopperPlate32BC font in an instruction indicates a button that
must be clicked, or a key that must be pressed, or a field that must be entered or a particular screen;
e.g. BUTTON indicates a button that must be clicked.
NOTE: Information in this box
will be Informative.
CAUTION: This information
will be quite important and
1.2 Applicable Models
This manual is applicable to the following A75 Models:
• Novra A75
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2 Introduction
2.1 Principles of Operation
Somewhere in the world is a location that transmits your signal, along with many others, up to a
terrestrial broadcast transmission tower that sends those signals to your location, and many others.
Your ATSC antenna receives these signals and sends the to the A75 ATSC receiver. The A75 sifts
through all the signals sent by the broadcast tower looking for your signal (an ATSC stream) and
forwards to your computer the portion containing the data you want. The Ethernet card on your
computer can further filter that data and pass it to other programs on your PC.
The A75 Management Console is used to configure addresses, specify channel parameters, select
ATSC information streams by Program IDentification number (PID) and map audio/video PIDs to
multicast address(es). Once configured, the A75 will retain its settings and continue to forward data
transmitted to you by your service provider even after restarting the A75 or your PC.
The A75 Receiver does not require a computer to continue operation. Once the options have been
set you will have no need to change them.
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3 Getting Started
3.1 What your configuration may look like
Power
Supply
PC Management
Station
Received Signals
Installation
Disk
Ethernet
Packets to/from
Mgmt Station
Figure 1: Typical Configuration
A75 Receiver
6 Vdc
(Center +ve)
(Cat 5
Crossover
Cable)
The A75
Receiver
Package
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service.
NOTE: - This information is needed in order for the receiver to function. It is
recommended that all the information be collected before attempting to install the
3.2 What Information do I Need – Basic Configuration?
1. The IP Address to be assigned to your Novra A75 Receiver
a. Example: 192.168.170.125
2. The IP Address Subnet Mask
3. The IP address of the Default Gateway for the receiver.
4. Is the receiver supposed to filter multicast traffic using IGMP?
5. The ATSC Channel number
NOTE: IGMP is an Internet standard that is used to control multicast traffic on the LAN
based on the client’s interest in the stream. For proper operation, all components of
your network should support IGMP
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-
3.3 SOFTWARE Installation on Windows 2000, or XP
The A75 Console software is supplied as a single executable. Therefore, it is easy to install on
different systems. All you need to do is copy the executable to your working directory.
NOTE:
NOTE: - Your screen resolution MUST be at least 800 x 600 and at least
"16 bit color" to function properly.
You MUST be logged onto the system as Administrator.
3.4 A75 Startup and Main Screen
1- Start the A75 Console software. Once running you will be presented with the A75 Console main
screen as shown in Figure 2 below.
NOTE: - You MUST be logged onto the system as Administrator, for the
network settings function to work properly.
2- Before starting to configure your A75, you must ensure the network settings of the device make it
accessible from the Windows management PC. The IP address of the device and the IP address of
the management station must reside on the same subnet, or there must be a route that connects both
of them through a router. For the simple case where the A75 and the management PC are
connected via an Ethernet crossover cable or through an Ethernet hub, there are two different ways
this may be accomplished. The A75 Console will automatically detect all A75’s that are presently
connected to the management PC LAN. Clicking on the Device List Icon (item [3] in Figure 2
below), will present the list of connected A75’s. This list will identify the A75(s) by MAC, IP address
and A75 type. Click on the one you wish to configure, and the status box of the Console main screen
will be updated with the A75 information.
You must now ensure that your A75 IP address and your Management PC IP address are on the
same subnet. As mentioned, this can be done in one of the two ways:
1. In the console status box, the IP address of your A75 will be displayed. Note the A75 IP
address and change the IP address of your management PC Network Interface Card (NIC)
(the one that’s connected to the A75) to be on the same subnet as the A75. The PC NIC IP
address may be changed using My Network Places in Windows. If unsure, please refer to
your Windows user manual to perform this operation, OR
2. Even though your A75 and your management PC are not on the same subnet, the A75
console has been designed to be able to change the network settings of the A75. Therefore,
in the A75 Console, click Configure and then Network. This will bring up the A75 network
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I2354
6
settings, which include the receiver IP address and subnet mask, and gateway IP address.
Change these address parameters to match you management PC LAN subnet. For example,
if your PC NIC is set to 192.168.5.1, you may wish to change your A75 IP address to
192.168.5.2.
NOTE: - If the A75 and the management PC are not on the same subnet,
you will be able to change the network settings of the A75, but will not be
able to configure the Content or Channel settings.
Figure 2 - A75 Console Main Screen
The A75 Console main screen enables the operator to select, configure and view status of the
selected A75. Three main buttons are provided enabling the operator to:
• Configure - configure the main parameters of the A75
• Load/Save – load and save configuration files for the A75
• Status – display the status of the A75
Also provided in the Console main screen is the following functionality/information:
1. – Clicking this icon will close the A75 Console application
2. – Clicking this icon will minimizes the A75 Console application to the system tray
3. – Clicking this icon will present a list of A75’s that the A75 Console application is
receiving status information from. Clicking any A75 in the list will select that unit for further
configuration
4. Lock – Turns green when the receiver detects an input ATSC signal at the selected
frequency. This matches Lock LED on the front of unit
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5. Data – Turns green when the A75 is forwarding data. This means that the receiver is able to
receive the selected PID and pass the data onto the LAN.
6. Status Box – This status box shows details of the A75 being configured, including the A75
type, the A75 MAC address, the A75 IP address, and the device status
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When configuring the A75, mousing over different parts of the Console screens
4 Configuring the A75
This chapter discussed how to configure the A75.
4.1 Configure
Selecting the Configure button brings up the following four sub-menu items that enable the operator to:
• Network – Configure the network interface
• Channel – Configure the ATSC channel number
• Content – Configure the PID content
• Reset - Reset the A75
NOTE:
will provide pop-up of context-sensitive help information.
Figure 3 – A75 Configure Sub Menu
4.1.1 Network Button
The Ethernet network settings of the A75 may be modified by selecting the Network Button and changing
the appropriate fields (as shown in the figure below).
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Figure 4: Network Configuration Dialog Box
1. Receiver Address - This is the IP address to be assigned to the receiver
2. Subnet Mask - This is the subnet mask that the receiver should use to determine whether an IP
address belongs to the same network or not.
3. Default Gateway - This is the IP address of the router that the receiver should use whenever
it wants to send traffic to a non-local address (IP address that does not belong to the local
subnet).
4. Use IGMP for filtering Multicast Traffic - This check box allows the user to turn IGMP
filtering on or off. IGMP controls which multicast streams will be forwarded on the LAN based on
the number of clients listening to that stream.
NOTE: - Proper operation of IGMP protocol requires that all devices used in the
network support IGMP protocol.
5. Send Status To - This is the IP address used to send Unicast status copies for remote
monitoring purposes
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NOTE: - The Device status can be sent to a remote management station by
configuring the status destination IP. However these settings don’t affect the
broadcast status messages. To turn off the unicast status, set the destination IP
address to 255.255.255.255.
6. Selecting the Check icon will send the network changes to the A75 receiver
7. Selecting the X icon cancels the changes and exits back to the main screen
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4.1.2 Channel Button
The next step in the configuration is to ensure you have the correct ATSC channel number setting. This can
be accomplished by clicking on the Channel button and bringing up the channel screen as shown in the
figure below.
1) Enter Channel Number (2-69): Enter your desired ATSC channel number
NOTE: - A table of the ATSC channel number vs frequency is provided in
Chapter 8
2) Selecting the Check icon will send the channel changes to the A75 receiver
3) Selecting the X icon cancels the changes and exits back to the main screen
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Figure 5: Satellite Configuration Dialog
4.1.3 Content Button
The Content button screen (shown below) is to be used when the A75 is to be configured to receive MPE or
video data from the ATSC broadcast stream and forward this data to the appropriate IP address on the LAN.
This screen is used to add (or delete) MPE Data Program IDs (PIDs) or elementary stream PIDs that enable
the A75 to receive the IP or MPEG content.
1. Enter PID Value: Use this edit box to add a new Program ID to the list;
2. Decimal: Use this check box to enter the PID values in decimal as the default
3. HexDecimal: Select this check box to enter the PID values in Hexadecimal as the default
4. Video PID – Highlight one of the PID’s and check this box to change the PID type from PID to a
video PID. See Section 4.1.3.1 for further information
5. Selecting this PID Add icon adds the content of the PID box to the PID List
6. Selecting the PID Delete icon deletes the selected PID from the PID list
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Figure 6: IP Data Content PIDs
7. Selecting the PID Delete All icon will empty the PID list
8. Selecting the Check icon will send the PID changes to the A75 receiver
9. Selecting the X icon cancels the changes and exits back to the main screen
NOTE: - Older builds of the A75 (Build A0100) do not support the addition of video
PID’s and therefore the Video PID box is not displayed in the Content screen
4.1.3.1 Adding Video PIDs
Any of the PID’s added in the section above (Section 4.1.3) may be configured and received as an ATSC
elementary stream PID (versus an MPE PID) and passed directly to an IP address (multicast, unicast or
broadcast) on the A75 LAN. This feature enables the operator to pass television program PIDs (including
audio, video and MPEG Service Information (SI) PID’s) on the LAN for viewing. Section below provides a
detailed description of how to configure the A75 to receive TV signals and how to setup an incoming PID as a
video PID.
To start with, you simply select the PID and check the Video PID box. This will bring up the Video PID
Screen as shown below.
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Figure 7 - Video PID Content Screen
1. Destinations Address and Destination UDP Port: The destination IP Address and port
may be added to the individual PIDs in the PID list. In this way, received packets are mapped to
different IP Addresses locations (note: this is typically a multicast IP address).
NOTE: - The IP address/port specified here indicates where the PID traffic is to
be sent to.
2. Selecting the Check icon will send the Video PID changes to the A75 receiver
3. Selecting the X icon cancels the changes and exits back to the main screen
The A75 may be configured for TV viewing. Please refer to Chapter 5 for further information on this.
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4.1.4 Reset Button
Selecting this button will bring up the A75 Reset screen as shown below.
Figure 8 - A75 Reset Screen
1. Selecting the Check icon will reset the A75 receiver
2. Selecting the X icon cancels the reset request and exits back to the main screen
NOTE: - Selecting Reset will not reset the A75 back to factory default settings. It
will simply restart the unit.
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4.2 Load/Save Button
The Load/Save button enables the operator to create, save and load A75 configuration files. When selected,
the Load/Save submenu screen is presented as shown below. .
The Load/Save screen provides the operator with the 4 options shown above. Selecting any one of the 4
options will bring up a further screen as described below. Selecting will close the screen and return to
the main screen.
4.2.1 Save Last Used Configuration to a File
Figure 9 - Save Last Used Configuration Screen
1. Browse – Browse to the destination configuration file
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2. Selecting the Check icon will save the configuration to the destination configuration file
3. Selecting the X icon cancels the changes and exits back to the Load/Save screen
4.2.2 Create a Configuration File from the Current Device
Figure 10 - Create a Configuration File from Current Device Screen
1. Browse – Browse to the destination configuration file
2. Selecting the Check icon will save the configuration file based on the current device setting
3. Selecting the X icon cancels the changes and exits back to the Load/Save screen
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4.2.3 Load a Configuration File and Apply All
Figure 11 - Load Config and Apply Screen
1. Browse – Browse to the configuration file to be loaded
2. Selecting the Check icon will load and apply the configuration
3. Selecting the X icon cancels the changes and exits back to the Load/Save screen
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4.2.4 Load a Configuration File
Figure 12 - Load a Configuration File Screen
1. Browse – Browse to the configuration file to be loaded
2. Selecting the Check icon will load the configuration
3. Selecting the X icon cancels the changes and exits back to the Load/Save screen
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4.3 Status Button
Selecting the Status button will bring up the status panel as shown below. Included in the status panel is:
1. A listing of the Selected PIDs
2. The current ATSC channel number
3. The Signal to Noise Ratio of the received signal
4. The Default Gateway IP address, and
5. A checkmark indicating that Multicast Filtering (IGMP) is enabled (or not)
NOTE: It is important to note that the status panel shows the user the current the
current configuration parameters that are programmed into the A75. These
parameters may or may match the configuration parameters that are present in
the A75 Configuration application.
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Figure 13 - A75 Status Screen
5 How to Configure the A75V for TV Viewing
This Section provides a step-by-step procedure for viewing TV programs using the A75.
Prior to configuring the A75 for TV viewing, you will need to know on which PID’s TV program is being sent
on. A typical TV program will contain 4 PIDs, including:
• Video PID
• Audio PID
• Program Mapping Table (PMT) PID
• Program Association Table (PAT) PID
The A75 will need to be configured to pass each of these PID’s to the correct IP address on the LAN.
Also, it should be pointed out that the A75 provides an Ethernet output (not a video output). It therefore
cannot generally be connected directly to your TV. You can, however, pass the Ethernet signal to an MPEGover-IP set top box (which would be used to drive video to your TV), or you can view the TV program(s)
directly on your PC using a software video player, such as VLC.
To configure the A75 for watching TV, please do the following:
1. Configure the Novra software.
2. Using TSReader or another stream analyzer, determine the PIDs in use for video stream. An
3. Add all of the above PIDs into the Content section of the A75 Console Application (Refer to Section 4.1.3).
4. Check the video PID box for each of the above PIDs, including the video, audio, PAT and PMT. After
checking the video box, a destination address and port box opens (Refer to Section 4.1.3.1). Type the same
multicast IP destination address in for each unique program stream. Do the same thing for destination port.
Give each program stream you want to watch (group of 4 PIDs) a unique IP address and port.
NOTE: Stream Analyzer programs for the PC, such as TSReader, may be used to help
determine the PIDs in use for the video
a. Determine the IP address of the box by clicking on the device list pointer. Set host PC up on
the same IP address class for configuration. This can be changed back after Novra is
configured.
b. Set channel to tune to the correct frequency. Refer to Chapter 8 to see the table showing
frequency vs channel number.
example of 3 TV programs that are coming down in one MPEG stream might be:
a. PAT - (usually PID 0)
b. Video PID(s) - (i.e. 31, 41, and 51)
c. Audio PID(s) - (i.e. 34, 44, and 54)
d. PMT - usually the base number for the audio and video (i.e., 30, 40, and 50)
where PIDs 0, 30, 31, 34 would be one TV program, PIDs 0, 40, 41, 44 would be another and
PIDs 0, 50, 51, 54 would be the third program.
NOTE: You can make up the IP address based on knowing that no other multicast
streams are using that address and port on your network. All multicast streams must
be in the 224.X.X.X to 239.X.X.X address space. For example 224.0.0.10, port 3030.
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6. Set up VLC player to render the stream by
a. Select File, Open Network Stream
b. Enter the multicast address and port you specified in step 4 in the UDP/RTP multicast section
c. VLC will then start playing the television programming
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6 Troubleshooting
This section can help you resolve most of the common problems when installing the A75.
1) I connected the receiver and when I start the Console, it says it can’t detect any A75 Receivers?
- Make sure the unit is physically connected to the same LAN that your computer (running A75
Console) is connected to. The best way to rule that out is to use a cross over cable.
- Make sure the unit is powered up and the Ethernet link is established. The green LED on the back of
the Ethernet connector should be on solid, and the yellow light should be blinking.
- If you are using a hub, make sure there is only one A75 unit connected.
2) Why won’t the receiver lock to my settings?
- Is the RF cable connected?
- Are you using the correct channel number?
3) The receiver is locked to my signal and there is no Data, why?
- Do you have the right PID selected?
- Are you sure you are on the right channel?
- Is the default gateway on the receiver set correctly?
- Does the ATSC MAC address of the traffic match the MAC address of your unit? (unicast)
- Are you using IGMP and are the network clients joining the group? (multicast)
- Are you sending your video PIDs to the correct IP address?
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7 Specifications
7.1 Receiver Characteristics
Receiver
Receiving Frequency: 55 to 806 Mhz
ATSC Channels: 2 to 69
Input Signal Level: -80 dBm to 0 dBm
Channel Bandwidth: 6 Mhz
Phase Noise: -89 dBc/Hz @ 10 KHz
Demodulation: 8VSB
Channel Bitrate: 19.38 Mbps
FEC: Reed Soliman and Viterbi
Noise Figure: 8 dB
Image Rejection: 70 dBc
Data
DSM-CC Multiprotocol Encapsulation per ATSC A/90
Throughput: 19.38 Mbps
MAC filter
Section Packing
LLC-SNAP
Configuration Points
IP Address
PID Selection
RF Channel
Status Indicators
Power: Red LED
Packet Error: Amber LED
Lock: Green LED
Ethernet Link and Transmit
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sub menus).
7.2 Minimum System Requirements
Your computer must operate with any one of the following operating systems to successfully use the
Novra A75 Receiver:
• Windows 2000, with Service Pack 4
• Windows XP
Your computer must have at least the following:
• Processor: Pentium 566 MHz
• RAM: 32 MB
• Free disk space: 40 MB
• Video: card and driver that support 256 or more colors
• CD drive (required for software installation only)
• Ethernet network interface card (NIC): 100 Mbps (100 BaseT)
NOTE: - Performance may be dependant on other applications that your PC is running.
NOTE: - To avoid minor graphic distortion of the A75 console screens, please ensure the small
Windows font size is selected (typically this may be found in one of the Windows Display Properties
7.3 Supplied Equipment
Please confirm you have received all the equipment listed below.
• Novra A75 Receiver
• Cross-over cable or Ethernet cable
• Power supply (120 Vac to 6 Vdc)
• A75 Receiver Software CD
• Novra A75 Receiver User Manual (Soft Copy on CD)
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8 ATSC Channel vs Frequency
Channel
No.
2 57 24 533 47 671
3 63 25 539 48 677
4 69 26 545 49 683
5 79 27 551 50 689
6 85 28 557 51 695
7 177 29 563 52 701
8 183 30 569 53 707
9 189 31 575 54 713
10 195 32 581 55 719
11 201 33 587 56 725
12 207 34 593 57 731
13 213 35 599 58 737
14 473 36 605 59 743
15 479 37 611 60 749
16 485 38 617 61 755
Frequency
(MHz)
Channel
No.
Frequency
(MHz)
Channel
No.
Frequency
(MHz)
17 491 39 623 62 761
18 497 40 629 63 767
19 503 41 735 64 773
20 509 42 641 65 779
21 515 43 647 66 785
22 521 44 653 67 791
23 527 45 659 68 797
46 665 69 803
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APPENDIX
Terms, Definitions, and Other Tidbits of Information
ATSC The Advanced Television Systems Committee, Inc., is an international, non-profit
organization developing voluntary standards for digital television.
Crossover Cable A crossover cable is a cable that is used to connect two computers by reversing, or
crossing over, the cable pin contacts. This eliminates the need to use a hub when
connecting two PCs. It is also referred to as a "Null Modem" cable.
Coax Cable Looks like this:
The coaxial cable is most commonly used for Cable TV feeds inside a house or
apartment. This form of cable allows the high frequencies of TV, and Satellite type
signals to move from one place to another with a minimal amount signal loss.
DVB Digital Video Broadcasting (DVB) is a set of standards that define digital broadcasting
using satellite, cable, and terrestrial infrastructures.
IP The Internet Protocol (IP) is a network communication protocol used on Ethernet
networks and the Internet.
IP Address The 32-bit computer address defined by the Internet Protocol. It is usually represented
in dotted decimal notation. Example: 192.168.111.112.
LO The Local Oscillator (LO) is a circuit that creates a tone of a very specific frequency.
These units have many applications in electronics. This important thing to remember is
that there is an LO in the LNB (Low Noise Block-converter) and it is part of the circuit
that converts the received satellite RF Frequencies to the more user friendly L-Band
Frequencies. Typical values include 9.75, 10.60, 10.75, 11.00 and 11.25 GHz for the
Ku band and 5.15 GHz for the C Band of satellite frequencies.
MAC Address The Media Access Control (MAC) address is the unique hardware address for any
piece of electronic equipment attached to a network. The MAC Address for your Novra
A75 Receiver is displayed on a sticker on the bottom of the receiver.
Mbps Mega bits per second. (Million bits per second)
MBps Mega Bytes per second. One "Byte" in computer terms is the same as 8 bits. It is often
referred to as a word.
1 Mbps = 8 Mbps = 1 million Bytes (Words) per second = 8 million bits per second.
Msps Mega symbols per second. Suppose you have four symbols, call them A, B, C & D.
Let the Symbol A represent two bits of data with the value 00.
Let B represent two bits of data with the value 01
Let C represent two bits of data with the value 10
Let D represent two bits of data with the value 11
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This means that if the signals we are interested in consist of 1.0 Msps (That's 1 Million
symbols per second), and each symbol represents two bits of data, then our signal
has a data rate of 2.0 million bits per second (2.0 Mbps).
The important point to remember is that satellite systems send and receive symbols
which are then converted into data. The A75 takes the resulting data and forwards it to
your computer in bursts called "packets."
Packet A packet is the unit of data that is routed between an origin and a destination. When
any file is sent from one place to another (the Internet as an example) it is divided into
"chunks" of an efficient size for routing. Each of these packets is separately numbered
and includes the Internet address of the destination.
PID The Packet Identification Code (PID) is used by the receiver to sift through the
different packets of the transport stream. The transport stream contains data
representing many different signals. The A75 software running on your PC uses the
PID number to find only those packets of data that contain the information you have
requested.
RAM Random access memory. Used for short term storage of information requiring quick
access on a computer. Information stored in RAM can be accessed by the computer
much faster than information on the Hard Drive can be accessed.
Subnet A portion of a network, which may be a physically independent network segment, and
which shares a network address with other portions of the network.
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