May 20, 2018

DVB-T2 User Guide

DVB-T2 User Guide

Version 1.2

Document Revisions

Date Version Number Document Changes
17/09/2015 0.07 Initial Draft
19/09/2015 1.0 Added TV channel screen shots, test results.
09/10/2015 1.1 Updated with Bangalore DVB-T2 test transmission details.
17/10/2015 1.2 Added Advanced topics for measuring signal parameters.

Table of Contents

1 Introduction 5

1.1 Scope and Purpose 5

1.2 Key Features 5

1.3 Technical Specifications 5

1.4 System Requirements Windows PC 5

2 Installation 6

2.1.1 Setup 6

3 TV Channels 9

3.1 DD Chandana 10

3.2 DD National 11

3.3 DD Bharati 12

3.4 DD News 13

3.5 DD Sports 14

3.6 DD Urdu 15

3.7 DD India 16

3.8 Sony Pal 17

3.9 AIR Hindi 17

4 Advanced Topics 18

4.1.1 Capture stream 18

4.1.2 Hardware Diagnostic 18

4.1.3 Advanced Setup Dialog 21

5 DVB-T2 Test Objectives: 25

5.1 Test Conditions: 25

6 Further Test Plans: 26

Introduction

Scope and Purpose

DVB-T2 dongle is a pluggable TV tuner which turns your PC into a full-featured TV and PVR. This is free of cost and you can receive live DVB-T2 TV transmission on PC. Using TVR player software makes it easy to watch and record live TV.

Key Features

  • Watch and record TV without any extra costs.
  • Support MPEG4 H264 HD/SD with hardware acceleration
  • Snapshot
  • Live or scheduled program recording.
  • Electronic Program Guide (EPG)

Technical Specifications

  • TV standard: Digital terrestrial DVB-T (MPEG-2 (SD&HD),  MPEG-4 AVC / H.264(SD))
  • Tuning range 177.5-226.5 MHz (VHF); 474-858 MHz (UHF)
  • Channel bandwidth 6, 7, 8 MHz
  • Interface: USB 2.0 (Hi-Speed)

System Requirements Windows PC

  • Microsoft Windows 8, Windows 7 or Windows Vista with latest Service Pack and 512MB RAM (1GB recommended) or Windows XP and 512 MB RAM (1 GB recommended)
  • PC with Pentium 4 1.8 GHz or above
  • Free USB 2.0 port
  • DirectX 9 or above
  • Hardware video acceleration to support MPEG 4 H264 HDTV (High definition TV), the minimum requirement is one of the following video cards with DXVA2 (hardware video acceleration) enabled:
  • 。 AMD (ATI) Radeon HD2000 or above
  • 。 NVIDIA GeForce 500 or above
  • 。 Intel HD 2000 or above

Installation

Included CD has two installers and are required to install

  • Install AMDVB-T2 driver (FSC DVBT2_Setup_141229.exe)
  • Install TVR application (TVR_Setup_V4.6.4.exe)

Alternatively, you can download driver and software from OEM website

http://www.astrometa.com.tw/integrated_en.html

Before installing connect the dongle to PC and install the driver and software.

C:\biju\Projects\DVB-T2\Dongle\capture\20150917_172516.jpg

Antenna

DVB-T2 USB Dongle

Setup

After installation you will see the application program icon TVR player as shown in below figure.

Double click to open the application, and the window looks as follows.

From bottom menu, click control button

and select “Input Source”

To watch TV select Input Source as “Digital TV (DVB-T/T2)” and press scan. When it completes scan the stations will be displayed as shown below.

Select any channel and you should start viewing the TV channels.

C:\biju\Projects\DVB-T2\Dongle\DD NEWS_2015_0917_1454_26.jpg

TV Channels

The following channels are currently transmitted by DDK Bangalore.

No TV Channels Band Description
1. DD Chandana UHF Bangalore local channel. Currently transmitted for Encoder Service.
2. DD National UHF
3. DD News UHF
4. DD Bharati UHF
5. DD Sports UHF
6. DD Urdu UHF
7. DD India UHF
8. DD Saptagiri UHF
9. Sony Pal UHF
10. DD Bangla UHF
11. AIR Kannada UHF All India Radio (AIR) radio service only audio.
12. AIR Hindi UHF
13. AIR Tamil UHF
14. AIR Telugu UHF

DD Chandana

C:\biju\Projects\DVB-T2\Dongle\Encoder Service_2015_0919_1740_14.jpg

DD National

C:\biju\Projects\DVB-T2\Dongle\DD NATIONAL_2015_0919_1650_37.jpg

DD Bharati

C:\biju\Projects\DVB-T2\Dongle\DD BHARTI_2015_0919_1755_59.jpg

DD News

C:\biju\Projects\DVB-T2\Dongle\DD NEWS_2015_0917_1745_23.jpg

DD Sports

C:\biju\Projects\DVB-T2\Dongle\DD SPORTS_2015_0919_1742_16.jpg

DD Urdu
C:\biju\Projects\DVB-T2\Dongle\DD URDU_2015_0919_1715_04.jpg

DD India

C:\biju\Projects\DVB-T2\Dongle\DD INDIA_2015_0919_1720_24.jpg

Sony Pal

C:\biju\Projects\DVB-T2\Dongle\SONY PAL_2015_0919_1737_05.jpg

AIR Hindi

C:\biju\Projects\DVB-T2\Dongle\capture\DD_AIR_HINDI.JPG

Advanced Topics

Capture stream

  1. Press Ctrl + Alt+ Shift+ D to get the hardware diagnostic dialog.
  2. Enter the RF frequency in MHz unit and click TUNE button (do not press View). User will see RF power and SNR (Signal-Noise-Ratio) value and the RF power should around 90 or greater.
  3. Click ‘Capture Stream’ button when it is activated. Please wait until ‘Current File Size’ stop running or stop manually by clicking ‘Capture Stream’ button again if the stream is long enough.
  4. The capture file with extension “.ts” will be in “my document\TVR\Capture” folder (default path).

Hardware Diagnostic

It describes the information about the channel and the device working status.

Users could input the frequency in RF Freq and press the TUNE button and see all the information here.

Hardware Diagnostic Window

DxVA: The video acceleration is enabled if it is checked.

Tuner Box

RF Freq. [MHZ]/ Physical Channel: It indicates the frequency of current channel. Users could also enter a frequency for testing.

Band select: It shows the frequency band name which is loaded from frequency table (FreqInfo.ini)

Band width: It shows the bandwidth setting (6 MHz, 7 MHz and 8 MHz).


Antenna Control:


Checked if the frequency is for DVB-T2 multiplex.

Status Box (RF Power, SNR, BER, status)

RF Power (Radio Frequency Power): It shows the strength of signals. It’s better more than 90.

SNR (Signal to Noise Ratio): It describes the quality of signals. The normal value of SNR is around 20 or above.

BER (Bit Error rate): BER is the percentage of bits that have errors relative to the total number of bits received after error correction. It is normally zero.

Status: The figures in parentheses shows number of retry every 0.5 seconds when there is no stream received.

Capture Stream button: Press the button to capture streams. Press again, capture will be stopped.

Detail Button

Click this button and it will show the information about demodulator status and stream status.

Demodulator Status

Demodulator status shows some information like Receiver mode, Modulation and CNR.

Stream information shows the data of the stream like DTV system, Frequency, and the program number.

Advanced Setup Dialog

Press key ‘E’ on keyboard to start advanced setup. In this mode, user would see many tabs and can adjust some settings in each tab.

The 3 tabs will be introduced particularly.

Advanced Setup Dialog

Scan channel tab: User could edit the channel table and scan channels here. Especially, there are 3 modes of scanning in the RF Frequency box, which are ‘Country/ Area’, ‘Range’ and ‘Single’.

Select Country/ Area, users would scan by default frequency’s range.

Select Range, users could set the range of frequency to scan.

Select Single, users would scan single frequency.

To save / load the channel list or delete the channel, users could press the button on the right side of this tab, click right button on the mouse to rename the channel.

Below the RF frequency box, users could adjust the bandwidth and press start button to start scanning.

Information tab: In this page, users could see some information retrieved from the player, include video attributes, audio attributes, and USB speed and channels attributes.

Information Tab

Capture tab:

In this tab, users could set the path to save the file which is grabbed (Grab Image button).

To change the path, press the ‘…’ button to choose the folder to save and name it (please keep Channel_Time in the file name for actual channel name and time replacement).

Capture Tab

DVB-T2 Test Objectives:

  • Study of the DVB-T2 test signal reception in the UHF band in Bangalore.
  • Only static test reception test.

Test Conditions:

The UHF band DVB-T2 transmitter was approximately 4.5 km from the test set-up. The aerial distance measured using google maps is shown in Figure 2. Transmitter parameters are as follows,

Transmitter – DVB-T2 Power 6KW

Transmission Bandwidth – 8MHz

Frequency – 498 MHz UHF (Ch 24)

Modulation Type: QPSK

FFT – 8K OFDM

Data rate – 6Mbps

C:\biju\Projects\DVB-T2\Dongle\capture\TV-Tower-Distance.JPG

Figure 2: Aerial distance of DVB-T2 TV transmitter from test location.

C:\biju\Projects\DVB-T2\Dongle\Demod_Status.JPG

Figure 3: Bangalore Transmission parameters of DVB-T2

Further Test Plans:

  • Determination of the reliable reception area of DVB-T2 test signal in Bangalore.
  • DVB-T2 reception on automotive mobile environment.
  • Measurements of DVB-T2 signal parameters such as field strength, SNR etc.

Inside DVB-T2 Dongle

DVB-T2 dongle is opened and what we found

http://superkuh.com/02_rtl2832p_dvbt2.jpg

Important ICs are:

Realtek RTL2832P

Panasonic MN88472

Rafael Micro R828D

Device definition is added to rtlsdr as

{ 0x15f4, 0x0131, “Astrometa DVB-T/DVB-T2” },

RTLSDR supports this device by default.

SDR experiment on DVB-T2 Dongle

The DVB-T2 dongle is tested with SDR# software. The installation process is similar to other RTL SDR(DVB-T) version

DVB-T2

RTL SDR DVB-T

Observation:

There are spurious and dongle is not that sensitive as compared to DVB-T2.The observation is qualitative and we do not have mechanism to prove objectively.

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