2014年9月25日星期四

TBS MOI Pro DVB IPTV Streaming Server Finally Released

MOI Pro, As a professional IPTV streaming server,  it supports connection with up to 2 DVB PCI Express tuner cards through the tuner bridge board, which allows it to receive 50-80  more live TV/ radio channels for all end users, for example, connected with 2 quad tuner cards, it can receive a large number of live TV channels from 8 transponders, it’s ideal for industrial use, especially for IPTV projects based on high performance backend. With the preinstalled DVB software, such as MuMudvb, Tvheadend, DVBlast, szap, tzap ,czap etc., you are ready to build a professional DVB IPTV Server.   This Linux Free IPTV Server is offically released on Sep 12th 2014. You might get the first hand MOI Pro to BuyDVB Store.
MOI Pro IPTV Server
MOI Pro is a Linux based IP streamer powered by High performance quad core SOC Freescale, with DVB tuners integrated, it can receive Live digital TV or radio contents- both FTA (Free to Air) channels and Pay TV (encrypted) channels, and further stream them to the following client devices: PC, Tablet, Smartphone , iDevices (iPhone, iPad, iPod) or Sony Playstation 3.  MOI Pro is an ideal industry level IPTV Streaming Server for hotel, hospital and enterprise TV streaming projects 
MOI Pro provides an open solution with flexibility and variety as well, DVB-S2 tuner, DVB-T2/T tuner, or DVB-C tuner are available for you to choose to build your IPTV streaming server, with or without CI function is entirely up to you.

Here are the options available for MOI PRO users.

Options & Price

DVB Standard # MOI Pro Basic Optional Total
DVB-S2 1 $250.00 Plus 2x TBS6985 (+ US$449.98) $699.98
2 $250.00 Plus 2x TBS6991SE (+US$358.18) $608.18
3 $250.00 Plus 1x TBS6991SE & 1x TBS6985 (+US$404.08) $654.08
DVB-T2 4 $250.00 Plus 2x TBS6285 (+US$358.18) $608.18
5 $250.00 Plus 2x TBS6290 (+US$358.18) $608.18
6 $250.00 Plus 1x TBS6920 & 1x TBS6285 (+US$358.18) $608.18
DVB S2+T2 7 $250.00 Plus 1x TBS6985 & 1x TBS6285 (+US$404.08) $654.08
8 $250.00 Plus 1x TBS6985 & 1x TBS6290 (+US$404.08) $654.08
9 $250.00 Plus 1x TBS6991SE & 1x TBS6285 (+US$358.18) $608.18
10 $250.00 Plus 1x TBS6991SE & 1x TBS62290 (+US$358.18) $608.18
System:
SoC: Freescale MCIMX6Q5EYM10AC
CPU: Quad ARM Cortex-A9 at 1.0GHz
RAM: 2GB DDR3
GPU: Vivante GC2000, Quad core GPU, Quad IPU
Flash: 16G EMMC
Interface:
3x USB 2.0
1x SATA port
1x Audio port
1x HDMI port
Ethernet: 100/1000M Gigabit Ethernet
Wifi: 802.11n
Protocol: HTTP, UDP, RTP, TCP
OS: Linux

Preinstalled software:

Tvheadend, VDR, Mumudvb, DVBlast, szap-s2,
dvbdate,dvbscan,dvbdstream,dvbsnoop,
scan-s2,szap-s2,tzap-t2,LIRC,
telnet, ssh, ftp, samba, oscam
Client end support:
PC: Windows, Linux, Mac
Tablet: Android, iOS
Smartphone: Android, iOS
DVB tuner support:
DVB-S2/S: up to 8 tuners
DVB-T2/T: up to 8 tuners
DVB-C: up to 8 tuners
Note: MOI Pro can have up to 2 DVB tuner cards connected inside, you can choose 2 cards from the table below, here we offer only a few popular combinations of DVB tuner cards, if you need other combinations, please contact us.

2012年7月17日星期二

Summer Sale on buydvb online store,Up to 50% OFF,Cheering for 2012 Olympic Games!

London 2012 London Summer Olympics  is coming,are you ready with this big event? We have good news for you: BuyDVB is having Olympic special offer, up to 50% discount, starts from Junly 16th ,2012 and ends August10,2012.It's much cheaper than the regular price.  If you want a TBS cards, this would be a good opportunity,what are you waiting for?
More information please check:
http://www.buydvb.net/discount_coupon.html


Summer promotion for TBS TV Tuner Cards
Buydvb.net has launched a summer sales to go along with London 2012 Olympics Games .Discounts up to 50% off regular prices, including TBS6981, TBS6925, TBS6284, TBS31021.Only once big sale in a whole year.
TBS6981 DVB S2 Dual Card- OFF 20% Only $108.99,Save $30
TBS6280 DVB T2 Dual TV Card-OFF 30% Only $107.99,Save $50
TBS6925 Professional TV card- OFF 10% Only $224.99,Save $25
TBS6991 DVB-S2 Dual Tuner Dual CI Card-OFF 10% Only $179.99,Save $19
TBS5880 USB DVB-T2/T/C CI TV Box-OFF 15% Only $135.99,Save $23
TBS6284 DVB-T2 Quad Tuner Card-OFF 10% Only $197.99,Save $21
TBS6618 DVB-C TV Tuner PCIe Card CI-OFF 10% Only $89.99,Save $9
TBS5922 USB DVB-S2 Professional TV Card -OFF 10% Only $71.99,Save $7
TBS5980 USB DVB-S2  TV Box CI -OFF 15% Only $84.99,Save $14
TBS5280 USB DVB-T2 Dual Tuner TV Box -OFF 10% Only $116.99,Save $12
Summer promotion for TBS DVB Products
TBS3102 Phoenix Card Reader- OFF 50% Only $9.9,Save $10
DVB-T2 Receiver- OFF 50% Only $41.99,Save $18
Clone+ Card Splitter System-OFF 10% Only $125.99,Save $14
All of these specials , please visit buydvb promotional page
http://www.buydvb.net/discount_coupon.html

2012年6月27日星期三

Clone+ Home Edition SRF150 Client Card Splitter- Wireless Digital TV at Mulit Room

Are you still fretting with the high subscription fees of the digital Pay TV in your big family? It seems to be impossible to connect different TV receivers simultaneously in a house. Now the good news is that the Clone+ Home Edition 150 can help you solve the problem. Clone+ card is a high quality splitter compatible with all HD devices. This card sharing system shows the multiroom system performance - innovative service wireless signal separation (package) operators including Digits, Orange TP, Television on the Charter (TNC), viaccess, irtedo, Cryptoworks, such as SCT cards xxx, Free-X TV, theme, and many others. By paying only one subscription, digital pay-TV customers gain significant savings with a device called card splitter. It separates the signal (packet) satellite, cable or terrestrial set-top box so that all digital pay-TV channels can be seen up to 8 different television sets.

  
Clone+ Home Edition SRF150 wirelessly splits Digital TV from one subscription's card in the range of 150 m; all channels are available on even eight TV receivers. Now, each house member can enjoy all their favorite channels without any conflicts. On each TV receiver, different channels can be watched at the same time. More importantly, the latest Clone+ technology ensures comfortable TV watching even in the unfavorable conditions like thick walls, ceilings, insulated walls, etc.
How to Make Clone+ Wireless Card Splitter Work with Your Tuner?
If you are not sure how to make the Clone+ wireless card splitter work with your TV and HD tuner cards, you can follow the next steps. Generally speaking, the Clone+ works with all digital satellite tuners and CI modules which are MediaGuard compatible. Actually HD devices are no challenge to Clone+, which will work with them seamlessly.
Why Choose Clone+  Home Edition 150 Card Splitter?

* The comfort which Clone+ provides means you can independently and simultaneously watch channels on 8 TV receivers.
* Cost saving - you pay only one subscriber's plan and you can watch all channels on even up to 8 TV receivers.
* Ease of installation and use Clone+ was designed to be easily operated
* Wireless operation - subscribed TV package is wirelessly supplied to TV receivers without cables.
Key features:

* Dedicated for: Cyfra+ (Poland), Digital+ / Astra / (Spain), Canal Digitaal (Holland), Can***** (France), Meo (Portugal),
* serving up to 8 active users,
* unauthorized access protection,
* works with all satellite tuners and CI modules which are MediaGuard compatible,
* extended LED indicators system,
* advanced Plug&Play technology,
* fast and reliable performance,
* software update via USB,
* easy and fast installation.
Hardware list that Clone+ was already checked with:
* Reality Cam
* Diablo Cam
* Aston v 1.05, v 2.x
* Matrix Reborn, Revolution, Reoladed
* Magic Cam
* Xcam , Xcam Premium
* Dragon v 4.0 / 4.1 Cam
* T-Rex Cam
* Zeta Cam ver.2A270X
* Icecrypt Cam
* Cyfra+ Cam
* Philips DSB 6010
* Philips DSB 3010
* Philips DSR 3201
* Mediasat Pioneer 1330, 1430, 1530, 1630, 1730
* Mediasat Kenwood DTF -1/2
* Mediasat Thomson TS3P, nowa wersja w malej obudowie
* Mediasat HDTV Phiilps
* Mediasat HDTV PVR Phiilps
* Ferguson AF 6018, AF 7018, AF 8018 (without Eurosport), DF 6000, DF 9000
* Ferguson AF 6318, AF 7318
* Ferguson HF 8800 HDTV, HF 8900 USB
* Ferguson FX 6600, FX 7600, 9600 USB
* Protek 9200, 9300
* Radix DT X9
* Globo 7000 CR, 7100CR, 7010CR and CX series
* Golden Interstar 770 XSpeed
* Golden Interstar 780 XSpeed
* Golden Interstar 870 XSpeed
* Dreambox 500, 5620, 7000, 7020, 7025
* Relook 200, 400
* Triple Dragon
* Mediasat Pace DSR 221
* Strong SRT 6860
Each Clone+ Home Edition 150 set comes with follow
* 1 Clone+ Master
* 2 Clone+ wireless client card´s
* 1 Power supply
* User manual
* CD

How to Watch Cable TV on Computer/PC

With a personal computer by your side, you have access to several sources of entertainment - right from music to games. The lengthy list of activities that you can do on your computer has just got better with the inclusion of Cable TV-on-PC option. With the facility to watch cable TV on your computer, you can enjoy all your favorite TV shows which you were not able to see due to some or the other reason; and that too in real time.
Requirements
In order to watch cable television on your computer, you will require a  cable TV tuner card or a software, an updated computer and high speed Internet access. Another way, using broadband Internet will ensure that you get uninterrupted services, and enhance your cable TV experience.
How to Watch Cable TV on Computer?
Basically, there are two methods by which you can watch cable TV on PC- in the first, you can use simple hardware to gain access to the cable service, and in the second, you have to download particular software for the same. While the term 'hardware' here refers to the DVB-C Cable TV tuners, the term 'software' refers to programs which facilitate the use of computer to watch cable TV in real time. Such as DVBDream, MythTV, MediaPotable, ProgDVB and othe DVB software. As far as convenience is concerned, it is easy to execute both the methods by following some simple guidelines given in the user manual. Given below are the further details of each of these two methods.
Using Cable Tuner Card
If you intend to resort to a TV Tuner, which is slightly more convenient than the software downloading method, you will be able to buy one from the electronics store in your neighborhood or online store. Basically, there exist two types of TV tuners for PC - internal TV tuner (which comes in form of a PCI/PCIe card) and external TV tuner (which comes in form of a USB device.) While the TV tuner card (internal TV tuner) has to be plugged onto the motherboard of the computer, the external device can be plugged into the USB port. The TV tuners available today receive feed from cable service provider through the broadband network, and hence the picture quality is at par excellence even on the PC.
Both have their own pros and cons - while an internal TV card is relatively inexpensive and more stable, you are likely to have a tough time installing it on the motherboard. Similarly, the external device may be easy to connect, but the fact that it comes for some extra amount may make you give it a second thought. Depending on which of these two options you would prefer to go with, you will have to shell out something between US$50-$150. Brands like Hauppauge and TBS boast of some of  best usb tv tuner box, which are priced in the range of US$100-$150.
Downloading Software
If you are not keen on buying TV tuner, you can resort to software applications which facilitate live streaming of cable TV channels on the computer. This method will require a high-speed broadband connection, or else distorted picture quality and ruin your experience. You can inquire with your cable TV operator for the details of downloading the right software program for your PC. The entire process of downloading this software will take less than half an hour, and you will get access to thousands of TV channels on your computer or laptop. Though this method is not considered to be at par with TV tuners, the fact that it saves you the trouble of going through the technicalities of the hardware makes it ideal for some people.
With computers becoming an integral part of each and every American household, it isn't surprising that we now have the option of watching the television on our desktops today. Once you have installed the TV tuner or downloaded the required software, you can just sit back and watch your favorite shows with no disturbance whatsoever. At the same time, you would also get added benefits of recording live TV shows or watching previously recorded shows on your computer.
Recommendation:
TBS6618 –It is a digital cable TV tuner card with PCI express slot for watching and recording digital cable TV on PC. With integrated CI slot, it can be used for watching clear QAM or encrypted Pay TV By inserting the correct CAM and subscription smartcard into the CI slot.

TBS5680-It is a digital cable TV Tuner external box with USB connection for watching and recording digital cable TV on PC. Built with Common Interface, This USB TV box allows insertion of CAM and smartcard for pay TV. It is a good choice for watching digital cable TV on laptop.

2012年4月18日星期三

Window Media Center Edition MCE Remote Control

Media Center Edition (MCE) remotes are designed to control PCs running Microsoft Windows with Windows Media Center. MCE remotes come with an external infrared receiver that connects to a PC via USB. Newer PCs may have the IR receiver integrated in the case.

Note: Originally there were two modules lirc_mceusb and lir_mceusb2. These were later merged into a single lirc_mceusb driver. More recently (2.6.35 kernel and lirc-0.8.7) the module was known as just mceusb. You need to adjust all the configuration examples below depending on exactly how the module is named.
MCE Remote
*IR transmit and receive are supported on all generations of mce transceivers, as of lirc-0.8.6.
*Some newer devices may require post lirc-0.8.6 cvs for full functionality
*Historically, there were separate 1st-gen and 2nd-gen drivers, lirc_mceusb and lirc_mceusb2. They were merged into a single lirc_mceusb driver as of lirc-0.8.6, which as noted above, supports transmit and receive on all devices.
MCE Keyboard
*Keyboard is supported as a USB HID device
*IR Receiver is supported
*IR Transmitter is supported with lirc_mod_mce > 0.1.3
MCE Remote alternative
* Based on the mod-mce project
* Version 1 & 2 Receivers supported as a USB HID device
* LIRC not required
You can click here Download kernel module source
Installation guides
Be sure your kernel has support for USB. Most default kernels will. You will only need the USB 1.1 driver (OHCI or UHCI) and USB 2.0 (EHCI) is not required. There is no kernel module specific for this device. Before continuing, be sure your device is recognized by your USB host controller:
# lsusb
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 002: ID 0471:0815 Philips
Bus 001 Device 001: ID 0000:0000
Windows Vista MCE Remote
The new version MCE remote control now responds with the following when you type lsusb:
# lsusb
Bus 002 Device 002: ID 0609:0334 SMK Manufacturing, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
This window vista remote requires an updated lirc_mceusb2 driver (newer than current lirc-0.8.2 released: 9-Jun-2007) Download just the updated driver (version 1.30 of the file and newer has support) from LIRC CVS or follow the instructions below for a complete CVS checkout.Use the default mceusb2 lircd.conf file and all of the remote's keys work without modifying the example mceusb2 lircd.conf file.
Download a lirc CVS SnapShot
Generally the latest cvn snapshot from the official LIRC website should work fine. As of writing, the latest snapshot available is lirc-0.8.7pre1. Download and extract it either manually from the previous link or using the following code.
cd /usr/src
wget http://lirc.sourceforge.net/software/snapshots/lirc-0.8.7pre1.tar.bz2
bunzip2 lirc-0.8.7pre1.tar.bz2
tar -xvf lirc-0.8.7pre1.tar
cd lirc-0.8.7pre1
Users of the very latest linux kernels may find they have problems compiling or running code from the svn snapshot. If you have problems with the above install, or just want to run the latest and greatest lirc version, download the latest cvs lirc code using the following method. If that still doesn't work, please report your issues to the lirc mailing list.
Downloading using CVS
  1. Make sure you have the cvs, autoconf, automake and libtool packages installed (rpm package manager users search for them and install their rpms).
  2. 2. Type the following on a command line and ignore what it says about not finding /root/...:
cvs -d:pserver:anonymous@lirc.cvs.sourceforge.net:/cvsroot/lirc login
3. Type the following: cvs -z8 -d:pserver:anonymous@lirc.cvs.sourceforge.net:/cvsroot/lirc co lirc
4. Type the following:cd lirc./autogen.sh
5. Continue with the following Install section, starting with "./setup.sh".
You now have two choices, you can either run the Lirc Setup script and accept it installing itself where it wants to, or you can carry out a manual configure. Using the setup script is easier, but it means that the various binararies and configuration files aren't placed in the normal Gentoo locations.To use the automated setup process:
./setup.sh
Menu Option # (1) - Driver Configuration (enter)
Menu Option # (8) - USB Devices (enter)
Menu Option # (o) - Windows Media Center Remotes (new version, Philips et al.) (enter)
Menu Option # (3) - Save your configuration and run configure (enter)
make install
Important.png Note: If bash returns 'dialog not found' when running ./setup.sh, install the dialog packageThis will also create a /etc/lircd.conf file which should work. If it complains about missing fedora source files use "yum install kernel-devel" and rerun ./setup.sh.
To perform the manual configuration:
./configure --prefix=/usr --sysconfdir=/etc/conf.d --with-x --with-driver=all
cp remotes/mceusb/lircd.conf.mceusb /etc/conf.d/lircd.conf
If you get errors during the compile, try to change the .configure step to be./configure --prefix=/usr --sysconfdir=/etc/conf.d --with-x --with-driver=mceusb2 instead of -with-driver=all. You should change mceusb2 to mceusb if you are using the old version of the remote.
If you get an error message that the "kernel source is required", it actually means the kernel headers. On my system this Ubuntu package was linux-kernel-headers-2.9.12-9-386 to match the version returned by the uname -a command. Installing the right version of the headers to match your kernel version is esssential. You may also need to install the gcc compiler.Load the module and Start lircdTest it with the irw utility. irw will output the commands received by the IR receiver that match your lircd.conf file. So start irw, point your remote and start pressing buttons.
# irw
000000037ff07bfe 00 One mceusb
000000037ff07bfd 00 Two mceusb
000000037ff07bfd 01 Two mceusb
000000037ff07bf2 00 Home mceusb
000000037ff07bf2 01 Home mceusb
If everything works, then autoload lirc_mceusb2 when your computer loads (how to depends on your distro) and start lircd as well (also depends on your distro).One note, I'm running a late-model Gentoo and I have to load lircd with this option:
# lircd -d /dev/lirc/0
Otherwise it fails, as it defaults to /dev/lircd. You will also need to install an lircrc file (note no dot at the front of the filename in the ~/.mythtv directory so that when the frontend starts up it can see the mythtv configuration settings for your remote control buttons.

2012年4月10日星期二

Variable Coding and Modulation (VCM) and Adaptive Coding and Modulation (ACM)

Background
Variable Coding and Modulation (VCM) and Adaptive Coding and Modulation (ACM) are techniques that are strongly associated with the DVB-S2 standard. VCM can be used to provide different levels of error protection to different components within the service. It does this by allowing different combinations of modulation and FEC rate to be applied to different parts of the data stream. ACM extends VCM by providing a feedback path from the receiver to the transmitter to allow the level of error protection to be varied dynamically in accordance with varying propagation conditions. Claims of performance improvements exceeding 100% have been made for ACM in terms of satellite capacity gain.
What is less well known is that the DVB-S2 VCM and ACM concepts can be applied to traditional Single Channel Per Carrier (SCPC) types of services and can offer similar benefits. This whitepaper gives an overview of how these concepts can be used outside of DVB-S2 satellite services.
DVB-S2 itself is offered by Paradise in SCPC modems and can be used in both SCPC and Multiple Channels Per Carrier (MCPC) modes. However, it is convenient to use a term that can be used to refer specifically to non DVB-S2 SCPC satellite services and the terms ‘SCPC’ and ‘traditional SCPC’ are used in this whitepaper for that purpose (even although traditional SCPC systems have themselves evolved to have an MCPC capability).
For the avoidance of doubt, the traditional SCPC services (i.e. all services offered by Paradise SCPC modems) that are being referred to include, but are not limited to the following: IBS and IDR framed satellite services, Closed Network services, Engineering Service Channel (ESC),Automatic Uplink Power Control (AUPC), Drop and Insert, TPC, Viterbi, Reed-Solomon, TCM, LDPC
(Including the low-latency variety), all traditional modulations (including 8QAM and 16QAM), multiplexing of data from multiple terrestrial interfaces onto a single carrier, MIL-STD-188-165A/B, etc. – all using a variety of terres- trial interface types including IP, EIA530, LVDS, G.703 and HSSI.

SCPC VCM
VCM can be used to extend traditional SCPC services in a similar manner to how it is used in DVB-S2. A quasi-error free quality target is set for each remote terminal as normal. The choice of modulation and FEC rate, which determines the strength of the error correction, will be determined by a number of factors including the position of the remote terminal within the satellite footprint.
The DVB-S2 concept of a frame can be applied to SCPC links along with all of the other DVB-S2 concepts including, but not limited to, mode adaptation, stream adaptation, baseband frames, mapping, pilots, dummy frames, scrambling, bit interleaving, constellation bit mapping, slots, generic continuous and generic packetized streams, stream synchronization, FEC frames and Physical Layer framing. When applied to traditional SCPC services, these DVB-S2 concepts perform similar functions and provide similar benefits to those documented for DVB-S2.
At its simplest, the user data (whether packetized or continuous) is put into baseband frames (possibly with padding), FEC information is added and then a Physical Layer (PL) header is prefixed prior to transmission to create the satellite frame for transmission.
The size of the baseband frames is dependent on the particular FEC scheme being used. For block based FECs such as LDPC and TPC, the baseband frame size is related to the block size of the FEC.Mode adaptation and stream adaptation deal with the issues of single and multiple stream inputs and merging and slicing of these streams into a sequence of satellite frames. A particular frame, PL header apart (see overleaf), is always transmitted in a homogeneous manner using a single modulation and FEC rate.
As with DVB-S2, particular information can be conveyed in the baseband header to help with decoding at the receiver, including:
Data format (packetized/continuous)
Single/multiple stream indicator
CCM/VCM/ACM indicator
Stream synchronisation information
Roll-off factor.
Also as with DVB-S2, particular information can be conveyed in the PL header to help with receiver synchronization and demodulation of the frame, including: Frame identification information Details of the FEC type, modulation and FEC rate used to encode the remainder of the frame Indication of the FEC frame length. All of the baseband and PL header fields can easily be extended to accommodate non-DVB-S2 pertinent data that is required for use of these techniques with traditional SCPC services (such as the use of alternative FECs to those specified in DVB-S2).
A key point is that the PL header is always transmitted using a particular robust modulation (BPSK is used in the DVB-S2 standard) and strong FEC rate. This helps the receiver lock onto the signal and it provides the information required to demodulate the remainder of the frame. When not receiving a signal, the receiver is automatically configured to detect any PL header, requiring just a centre frequency and symbol rate to have been set.
Note that the DVB-S2 concept of pilots (unmodulated symbols) can also be applied to make traditional SCPC services more robust.

SCPC ACM
ACM can be used to extend traditional SCPC services in a similar manner to how it is used in DVB-S2. The benefits include greater satellite throughput, reduced link Margins and higher service availability.SCPC ACM is applicable to both point-to-point and point- to-multipoint systems. In terms of a return channel, both a direct return channel over satellite and an indirect return channel via a terrestrial network can be used. Even over satellite, multiple separate SCPC return channels arePossible using receive-only modems at the hub, where the return information can be passed on to the transmit modem to allow it to optimize the strength of error correction for each stream as applicable to the channel conditions.
The concept of the DVB-S2 ACM command can equally be applied to traditional SCPC systems and for the same purpose. Signaling of reception quality via the return channel can be supported in SCPC systems, in particular continuous feedback of the carrier to noise plus interference ratio at the receiver along with other potential reception quality parameters (e.g. Eb/No, Modulation Error Rate (MER), Error Vector Magnitude (EVM) and suchlike).
SCPC ACM is particularly well suited for use in IP networks because mechanisms readily exist in terms of IP protocols such as Quality of Service provisioning, traffic shaping and TCP to feedback changes in data rate to the terrestrial network, allowing dynamic changes in satellite bandwidth due to varying reception conditions to be quickly reflected in the data stream to optimize use of the link.
In summary, the flexibility, robustness and efficiency of DVB-S2 VCM and ACM multistreaming features can now be used to extend traditional SCPC services, bringing the same benefits to all applications including cellular backhaul, ISP trucking and backbones, broadcast, teleports, government, military and SNG.
TBS6925
TBS6925 PCI express DVB S2 TV Tuner Card is a professional satellite PCTV tuner card. It is the first unique TV tuner card of supporting CCM, VCM, ACM mode and multiple Transport Stream receiving. With TBS6925, there are many unknown frequencies. It is the best TV tuner card for satellite hunter or enthusiasts.

2012年3月26日星期一

Review: TBS6984 PCI-E DVB S2 QUAD TUNER TV CARD

TBS has developed a unique TV card represents that easiest way of equipping a PC with no fewer than four DVB S2/S satellite tuners. The new TBS6984 quad tuner card was reviewed in the latest issue of What Satellite (a professional and authoritative satellite magazine from UK) and received a Silver award from review ranking! Thanks to Martin Pipe, the author of this review. We really appreciate your contribution and Professional evaluation. Now we would like to share this great review with you!Author: Martin Pipe
Preface
 Digital TV tuner cards facilitate the monitoring of TV or radio programmers on your computer desktop. They'll also turn a computer into a PVR-bitstreams plucked out of the ether can, after all, just as easily be written to a file for future playback as passed to decoder software for live viewing. If your computer is networked, then other connected devices around the home, like multimedia players, Can access these files. With appropriate software and configuration they can be streamed to private locations across the internet too. Only now are commercial PVR manufactures like TiVo waking up to such flexible possibilities-those with tuner cards fitted to their PC's have enjoyed their benefits for years.
The first TV tuner cards had only one tuner, this restricted you to one channel at a time, although some software (such as DVBViewer) lets you simultaneously watch and record channels carried by the same transponder. If you wanted channels on different transponders-e.g BBC Two and Channel 4.-It was neccessory to install a pair of tuners, the problem with modern PCs is restricted expansion potential; gone are the days when a PC would have five and more expansion slots for the peripherals of your choice. The only get-around was to reply on a USB second tuner.
Hardware manufacturers like BlackGold noted this and introduced TV cards with multiple tuners. PC bound satellite viewers could now independently record and view multiple channels form different transponders.
A dual LNB was ideal for UK viewers with a 28.2°E minidish. Dishes trained on different satellites could be connected to each input, although flexibility would be lost. But most tuner cards will support Diseqc 1x/2x switchboxes. With appropriate setup in this vein, much can be achieved. Most modern satellite cards cater for DVB S2 as well as DVB S2, and can thus be used for HDTV reception if your PC is powerful enough, which brings us to the next evolutionary stage.
The TBS6984 PCIE DVB S2 Quad TV tuner card ups the ante by building four DVB S/S2 tuners into a single card. With a quad LNB on that dish, you will able to simultaneously receive a quartet of transponders, Astra/Eurobird viewers with their dishes can therefore simultaneously stream or record programs carried by BBC Two, BBC Four, ITV1 and Channel 4. Impossible with any current PVR, such a system could serve the viewing requirement of an entire viewing requirement of an entire household- one TBS6984 equipped PC, a Gigabit Ethernet network, and streaming media players installed in the appropriate rooms, Free-to-air (FTA) channels are fair game. For encrypted channels, though, you PC must be equipped with the necessary conditional access hardware and software (TBS5980 or TBS69828 DVB S2 CI Card with CAM can do it). TBS6984's DiSEqc2x compatibility gives rise to further reception possibilities.
Build and Connectivity
At 80mm. this card is taller than average and might not fit in some slimline cases, As a PCI express card, it should be compatible with most recent PC motherboards, Each pair of tuners (which lack loopthrough) is covered by a screening scan, and severed by a Trident CX24117 dual demodulator chip.  Other components on the board are associated with the power supply circuitry, among other things. A supplied cable takes a 12V feed directly from PC's power supply. DC-to DC conversion circuitry on the board processes this to obtain the 13V or 18V supplies needed to switch polarity.
To minimise unwanted voltage drops, the cable is connected to no fewer than three of the power supply\s drive connectors. We recommend that your PC is fitted with a decent power supply. if one isn't already present. Elsewhere on the board are DiSEqc and band switching tone generators, There's also a socket , standard with many PC tuners, for a trailing infrared sensor, This enables channels to be changed with the supplied handset, provided your software is compatible.
Basic use
On which subject, quite a lot of this is provide on an accompanying CD-ROM. You get TBSViewer(a cut-down version of DVBViewer), an OEM version of DVBDream(an alternative to DVBViewer) and TBSVHID(which maps handset buttons to the appropriate keyboard for different applications).
On top of this are the drivers-the software that allows the operating system and applications to recognise and work with the tuner hardware, TBS has been very thoughtful here. In additional to Window200, XP,Vista and 7 is support for Windows media center(built into Windows Vista/7) and Linux. The latter drivers, which are most welcome, will interest anyone interest in building a complete TV solution around MythTV(covered in a Wotsat series a while back)
Installing the card is relatively straightforward, although you'll need to open up your PC to reveal the motherboard slots.If you're worried about this, a local PC technician could do the job for you. Attaching LNB cables to the four sockets located on the backplate, which is accessible from the rear panel of your PC, can be a rather fiddly task.
When the PC is booted the tuners are detected and the drivers are then installed, These are compliant with the BDA(Broadcast Driver Architecture)standard, and as a result you're not restricted to the supplied TV software.We were, for example, able to use TBS6984 with full (GE) version of DVBViewer. Naturally, the software you are using will influence how the TBS6984 is used.This, together with your system hardware, will determine picture and sound quality as well as what features are your disposal.
PVR and multimedia
Naturally, Microsoft Media Center and the supplied DVBDream and TBSViewer Programs also recognised the four tuners that were now at their disposal. Features vary across the software, but with this powerful tuner all will enable you to record multiple channels or watch one while recording another. The capabilities of TBS6984 will satisfy even the hungriest of telly addicts. With DVBViewer GE we once viewed one show while recording eight others carried on the four transponders accessible to the card
Performance
Window Media Center, which conveniently enough, can deal with up to four tuners-benifits from a delicated "Set UP TV signal" wizard. Originally, we had nothing but problems with this, - out Yoyotech PC, a 64 bit quad-core machine running Windows 7 Ultimate. Would crash approximately 90 per cent into the examining TV signals phase. We then discovered that no other digital TV software would work either. In the end the firmware of the PC's Biostar motherboard was updated and we used the TBS6984 successfully with all the TV software.
Sensitivity compares will with other PC tuner cards, and search speeds are fast. With the PC hardware described earlier, an all-channels scan of Hot Bird with our DVBViewer GE reference software took just over five minutes, which compares well to many standard receivers.
This program dovetailed neatly with the card's facilities, in the options/hardware menu, any of the four tuners (labeled from A TO D) can be turned on or off- a function of the card's drivers.
Verdict
Not everybody needs such power, but if you do the TBS6984 is a clear choice, It's certainly ideal for TV a multimedia servers, such as MythTV, the Linux support is of obvious benefit here. It is also ideal for IPTV provider for commercial use.
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