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RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector

Ganjor86 622132 1575
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  • #31
    Ganjor86
    Level 21  
    I read on another forum that these amplifiers work well with RTL-SDR but I have no experience with it.
  • #32
    avatar
    Level 36  
    Hello, can anyone recommend the proven rtl + e4000 seller from all_egr? And I'm interested in how low can these tuners go when it comes to frequency?
  • #33
    Ganjor86
    Level 21  
    The tuners from the r810t on youtube are much better, you have a comparison with the e4000 and the lower limit of the r810 is 21MHz from what I remember and the e4000 is 55MHz. If you want to receive from 0kHz to 28MHz, I recommend direct sampling. At first glance, it may seem that this is a solution worse than up-converters, but I once wrote on YouTube to a Japanese who tested both up-converter and direct sampling, and he said that the effect on his ear is identical. It is only important to find the correct balun core and wind it correctly
  • #34
    zabex
    Level 22  
    Ganjor86 wrote:
    The tuners from the r810t on youtube are much better, you have a comparison with the e4000 and the lower limit of the r810 is 21MHz from what I remember and the e4000 is 55MHz. If you want to receive from 0kHz to 28MHz, I recommend direct sampling. At first glance, it may seem that this is a solution worse than up-converters, but I once wrote on YouTube to a Japanese who tested both up-converter and direct sampling, and he said that the effect on his ear is identical. It is only important to find the correct balun core and wind it correctly


    As I have been using a dongle based on the R820T tuner for 3 months, I also recommend it. Band 24-1762MHz (no holes). For this the FP6L amplifier and the Discone antenna. It is really great for such equipment. As for direct sampling, I have to disagree. Such a connection is very dangerous and the RTL28XX can be damaged at any time. I compared both direct sampling and working with an upconverter, the effects are significant. Connecting the converter gives a much stronger and cleaner signal than connecting the antenna directly to the AD converter (tested on a long wire antenna). I made the converter on the LA1186 chip, so its costs are not high and the effect is much better.
  • #35
    Ganjor86
    Level 21  
    I have written clearly about the ball :) it should be connected to the first and second pins of rtl, if you connect the longwire to rtl using a transformer, the system will not go to hell.
  • #36
    zabex
    Level 22  
    Ganjor86 wrote:
    I have written clearly about the ball :) it should be connected to the first and second pins of rtl, if you connect the longwire to rtl using a transformer, the system will not go to hell.


    I prefer not to mix and take risks. The more that the cost of LA1186 is about PLN 2-3 ;)

    PS Could a friend write about RTLSDR with FIFI-SDR converter? The expense is considerable, but does it translate into the quality of the reception? Is it perhaps comparable?
    Of course, in the range up to 30MHz.
  • #37
    bogi
    Level 29  
    zabex wrote:
    I made the converter on the LA1186 chip, so its costs are not high and the effect is much better.


    Could you please toss the converter schematic?
  • #38
    zabex
    Level 22  
    bogi wrote:
    Could you please toss the converter schematic?

    There are loads of frequency converters on the net! A bit of my friend's initiative!
  • #39
    Ganjor86
    Level 21  
    Link link to the RTL-SDR modification I only have a balun between the antenna input and the first and second pins of the integrated circuit, I did not want to do the rest because I knew that I would soon have FiFi so I can compare only to this RTL-SDR.
  • #40
    avatar
    Level 36  
    Ok, I found a seller on dx.com RTL2832U + R820T for $ 13.6 :) with free shipping
  • #41
    lysy1980
    Level 32  
    On eBay I buy from auction 230902157947 $ 10.89 + free shipping, so far there have been no problems since I have been buying from him for quite a long time.
  • #42
    zygmunt7
    Level 12  
    I bought a Newsky TV28T v2 and it came today :D , but this would be the end of the positives: / Namely how to pick up anything on it, nowhere can I find drivers for this system (RTL2832U & R820T)
    I have installed HDSDR from this site
    Code: text Expand Select all Copy to clipboard
    http://www.hdsdr.de/

    but apparently something is still missing ...
    Because from what I read on the original antenna, I should at least be able to receive stronger radio stations, and here nothing: /
    HDSDR does not detect the device for me, I did everything as in
    Code: text Expand Select all Copy to clipboard
    http://www.wykop.pl/ramka/1341289/rtlsdr-czyli-odbieraj-niemal-wszystko-z-tunera-dvb-t/

    How to do it? The system is Win7 x64
  • #44
    zygmunt7
    Level 12  
    No chance, nothing works, I do everything just like in this manual. I replace the drivers with zadig, installs sdr and nothing, on the whole range you can not hear anything, only a screech in the middle of the band ...
    I even opened the case to check if these systems were actually sitting there and they are: /

    Tuner bought on this auction:
    Code: text Expand Select all Copy to clipboard
    http://www.ebay.pl/itm/Newsky-TV28T-v2-USB-DVB-T-RTL-SDR-Receiver-RTL2832U-R820T-Tuner-MCX-Input-/160896092118?pt=LH_DefaultDomain_0&hash=item25762787d6#ht_2367wt_952


    What program should I use to check if it is receiving fm or dvb-t at all?
  • #45
    lysy1980
    Level 32  
    Eg BlazeHDTV (should be included on the board) or ProgDVB, you only need to restore the original driver

    In SDR # you have to select the device from the list, probably rtlsdr-USB
  • #46
    zygmunt7
    Level 12  
    The plate was not included: / a ProgDVB 6 finds nothing. I don't know how else I can check this tuner. Tomorrow I'll take him to my sister and try him on the laptop.
    I know that my colleague zabex has the same model and everything works fine for him.

    When turning on SDR #, I get this error, and I do not have USB on the list of devices:
    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
  • #49
    zygmunt7
    Level 12  
    lysy1980 wrote:
    Are you having problems with libusb rtlsdr and msvcr100

    Check out this package.


    IT WORKS!!!! :D After replacing your files with your files, reinstalling the drivers started right away :D , but in addition, I took the antenna apart and it turned out that it had cold solder and the cable core did not connect to the whip at all.
    I connected the tuner to the mesh antenna on the roof and it receives all radio stations from the area, and analog TV sound (dvb-t packages can see).

    But still it does not find any dvb-t station in PROGDVB6 (on drivers that win7 downloads itself from the net), therefore if someone has the original board attached to the tuner that looks similar and there is something besides BlazeHDTV: RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
    then could he upload the image of this tile somewhere on the server?
  • #50
    lysy1980
    Level 32  
    @lantin - It's not about the contents of the folder, because the installer gets everything you need. It's about the version of the files I provided. I have met at least 2 versions. The same is the case with ADS-B decoders (RTL1090, ADSB #) don't want to work with certain versions of files.

    @zygmunt
    The program from the board is BLAZE HDTV and is available on the network in the normal version (not HDTV), among others, on the hamster, while the one from the board is the HDTV version and is attached to the tuner along with the CD-KEY
  • #51
    zygmunt7
    Level 12  
    Oh, so if on another computer it does not want to work on this version, then should I have it on the first one?
  • #52
    lantin
    Level 10  
    zygmunt7 wrote:
    lysy1980 wrote:
    Are you having problems with libusb rtlsdr and msvcr100

    Check out this package.


    IT WORKS!!!! :D After replacing your files with your files, reinstalling the drivers started right away :D , but in addition, I took the antenna apart and it turned out that it had cold solder and the cable core did not connect to the whip at all.
    I connected the tuner to the mesh antenna on the roof and it receives all radio stations from the area, and analog TV sound (dvb-t packages can see).

    But still it does not find any dvb-t station in PROGDVB6 (on drivers that win7 downloads itself from the net), therefore if someone has the original board attached to the tuner that looks similar and there is something besides BlazeHDTV: RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
    then could he upload the image of this tile somewhere on the server?


    What version of sdrsharp do you have?
  • #53
    lysy1980
    Level 32  
    @zygmunt, tomorrow I will see what is on this CD, apart from the player. He writes from the phone so I can't do it today.
  • #54
    zygmunt7
    Level 12  
    lantin wrote:

    What version of sdrsharp do you have?


    SDR # v1.00.1114
  • #55
    lantin
    Level 10  
    What's the difference between this version of SDR # v1.0.0.1114 and v.1.0.0.1111?
  • #56
    Tommy82
    Level 41  
    I am looking for a tuner, but I am looking for one that can handle ADS-B.
    And I would not like to buy something from a hole in this place.
    Compatibility lists device -> chipset -> tuner I found but I miss information about where is the hole, which is especially important to me.
    And here is the question someone launched ADS-B for specific models?

    Unless I was looking wrong ;) .
  • #57
    lysy1980
    Level 32  
    Anything on the R820T. I have had a dozen or so pieces and they all worked on 1090MHz.
    There is also a topic on the electrode about a simple ADS-B receiver, there is a lot of information there.
  • #58
    zygmunt7
    Level 12  
    lysy1980 wrote:
    @zygmunt, tomorrow I will see what is on this CD, apart from the player. He writes from the phone so I can't do it today.


    Do you already know what's on this board? I can't start receiving dvb-t for anything: /
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