Dvb T Tuner Software
Few weeks ago I stumbled upon some topic on one of FPV forums about checking frequency, spectrum, antennas etc. I realized that people are using cheap DVB-T tuner based on Realtek RTL2832U chip as spectrum analyzer, SDR (software defined radio) and even as osciloscope.
There were many situations in my hobby when this brilliant device could help a lot. This discovery was so hot, so I decided to buy such usb dongle ASAP, even at slightly bigger price (55zł ~ $16) than directly from China. I found it in one shop in my town and next day I became happy owner of this tuner 🙂
This is Lifeview LV5T Deluxe (branded as NOT ONLY TV):
It’s equipped with a little different tuner than described on rtlsdr/osmocomSDR site, Fitipower FC0013 capable of working within 22-1100MHz frequency range:
To be clear: I use Linux 🙂
First step was to download and install rtl-sdr library from http://sdr.osmocom.org/trac/wiki/rtl-sdr . In this package there are also ready made udev rules to install, so root access is not required later for using it.
On this web page one can find also links to some related projects using this library.
Next step was to get pyrtlsdr library for Python as most of these project are written in that language. After installation of few more dependencies as wxPython, numpy, matplotlib etc I started testing software 🙂
RTLSDR-Scanner
My first application was RTLSDR-Scanner. Kind of old school, well known spectrum analyzer:
Easy to operate, with zoom but capable to scan only within range of whole MHz, so scan in narrower range than 1MHz is not possible (you could zoom, but it doesn’t enhance frequency resolution).
So, it was quite good, but I needed more 🙂
Unfortunately, the DVB Viewer software isn’t free – if you want to buy the basic version then you will have to pay 20€. Now, depending on what you want to achieve and how you want to customize the app and its features, you might want to apply certain plug-ins. Supported Tuner Mobile DTV Viewer can be used with all DVB-T/-T2 RF receivers for which legacy BDA drivers are available. Most vendors already provide such drivers for their devices. TV Tuner software for Windows 10 Television tuning software can schedule television shows for recording in advance with the help of the internet. 'DVB Dream' is a shareware Windows software used with PC tuner add-ons. (PCI or USB devices that you plug in to your computer). You can watch free-to-air tv or your paid subscription digital satellite, cable or terrestrial TV through your computer. Few weeks ago I stumbled upon some topic on one of FPV forums about checking frequency, spectrum, antennas etc. I realized that people are using cheap DVB-T tuner based on Realtek RTL2832U chip as spectrum analyzer, SDR (software defined radio) and even as osciloscope. DVBViewer is a DVB Software and allows TV and Radio on your PC! It supports DVB-T(2),S(2),C(2), ATSC and IPTV.
rtlsdr-waterfall
The package provides the installation files for ASUSTek HiVision DVB-T TV Tuner Driver version 14.418.186.418. If the driver is already installed on your system, updating (overwrite-installing) may fix various issues, add new functions, or just upgrade to the available version.
Waterfall applications is a real power of computerized spectrum analyzer!
This very easy Python script is more than useful.
For example, scan of commercial FM radio frequencies – all in one:
And situation when waterfall shows it’s power – 433MHz ISM band scan with some devices transmitting only during small window of time (on the left it’s probably wireless sensor for weather station):
And back to R/C 🙂 My 40MHz transmitter:
You could select and measure frequency range, make pan and zoom (but on lower frequencies application crash during zooming), change sesnsitivity of tuner to remove clipping and additional strips caused by this.
Audacity
Yes, you are reading right: Audacity – well known audio editing program. I made a little patch (not perfect) to allow change sample rate up to 10MHz because default maximum was 100kHz and typical rtl-sdr sample rate is about 2MHz, so selection tool and fft features are not working correctly.
Using rtl_sdr utility from rtl-sdr library, I dumped raw samples near desired frequency and then I imported it as raw 8 bit stereo samples into Audacity. Below are results:-)
Free Dvb-t Tuner Software
My 35MHz transmitter on 71 channel. I have little problems with range on this channel and this picture shows why:
On this image you can see:
- this is 5 channels radio (6 peaks of synchronization pulses)
- main frequency is shifted by about 5kHz from sampling base i.e. channel frequency – and it’s cause of poor reception
- deviation is about 3kHz (to about 8kHz from center of channel)
Using quartz for 63 channel it works much better from my experience and below is proof of this:
Shift from base frequency is less than 3kHz, so it’s better than on 71 channel.
For comparision, my simple 4 channel 40MHz transmitter:
Very tempting looks SDR# (available also on Windows) but require a lot more weird dependencies, so I put it for later.
But I’m sure that this topic will return some day with more new cool informations 🙂
Update 2013.06.22: second part is here.
The DVBViewer application allows you to receive digital TV (DVB) on your PC. With a suitable DVB card or a SAT>IP Server you can enter the world of digital entertainment and experience high quality, incredibly sharp TV pictures and near CD quality radio!
What does DVBViewer provide?
In addition to the basic features like reception of digital television and radio, the DVBViewer offers several advances treats. A complete user defineable surface allows you to control the program. Services like Teletext, HbbTV, MHEG-5 can be used, as well as scheduling the recorder via EPG (electronic programming guide). Advanced algorithms, derived from industrial processes, allow the parallel usage of multiple devices. The parallel usage of multiple devices is one of our core competences. Ingenious algorithms, usually used to optimize complicated work flows of industrial processes, are used to manage your available devices.
Tevion Usb Dvb-t Tuner Software Download
Which features make it unique?
The DVBViewer offers groundbreaking features: As worldwide first program capable to display additional content via HbbTV on a PC and by now it also supports Ultra HDTV. As worldwide exclusive PC application it is also capapable to present additional services via HbbTV or MHEG-5. A configuralbe multi media center allows you to comfortably manage your own music- and videofiles even with a remote.With modern graphic adapters and intelligent algorithms (Lanczos, Mitchell-Netravali, Nearest Neighbor etc.) the DVBViewer coaxex the maximum out of your TV stations and videos.
Is the software compatible with my hardware?
You can use almost every available TV-card, USB-TV receiver or USB Stick in combination with the DVBViewer. online labels free activation code The parallel use of several adapters is only limited by the available ports/slots of your PC. Besides regular DVB adapters you can also use SAT>IP Servers inside the DVBViewer.You are still not convinced? Please try the free demo version!
Can I receive PayTV and can I also watch IPTV?
Playback and recording of PayTV is supported for DVB cards/adapters with integrated CAM and valid subscription. With the spread of fast internet connections streaming television gains more and more followers. Parallels desktop 13 for mac activation key free. Consequently the DVBViewer features not only playback and recording of DVB-S/C/T but also IPTV.
Are 4k programmes supported?
You can receive and watch HEVC encoded material, which is used for DVB-T2 transmissions in most parts of Europe. This also includes the ability towatch channels broadcast in ultra high definition (3.840 x 2.160 pixels and more).It is recommended to use a modern graphics card to support the complex decoding process, though.
Where can I get further help with questions?
The DVBViewer has a large fan/customer base. We would love you becoming a part of this great community. You can reach the forum/discussion board with the following link.
Is it possible to donate the project?
In order to continue the development of our products we need your help. Besides telling your relatives and friends about the DVBViewer you can buy additional licences for gifting them or yourself.
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