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

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  • #811 15516071
    lysy1980
    Level 33  
    Lublin - only digital. I tested it and of course it works. How to set the program is described in this topic and generally on this forum.
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  • #812 15520171
    mariusz9787
    Level 2  
    Hello, could anyone describe the step-by-step procedure for installing the DSD + program for decoding mototrbo. I already have a Zadig installed and I receive aircraft positions from ADS - B. I have a problem with SDR to listen to, it shows me that it does not detect the device.

    As for searching the forum, I did it, but I found nothing that would describe the installation process step by step.
    Below I post a screnn with an error.



    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
  • #813 15528824
    Arek_v1
    Level 14  
    Hello, I have a problem.
    I bought a decoder with the latest chip and installed the original firmware from the board ...
    now I have a problem with installing sdr sharp, is the problem due to the fact that I have the original driver installed?
    If so, can the tuner be "saved"?
  • #814 15529247
    internick
    Level 36  
    And you did well. Now you need Zadig to replace the driver. The topic has few pages. Don't take the easy way, just review it from the beginning. I guarantee that all descriptions are included in it.
  • #815 15534406
    Hajna
    Level 24  
    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector This is my antenna made of a ski pole, screwed to the base of the magnetic CB antenna, and I can pick up all stations from about 20 km, I think you can pick up more on the wire,

    Added after 21 [minutes]:

    The antenna looks east, west and south, I can't see Gliwice from the north.

    Added after 2 [hours] 48 [minutes]:

    As I wrote earlier, I listen to the train and it should walk without any problems.

    Added after 4 [minutes]:

    Previously, I failed to add a file
    Attachments:
  • #816 15534902
    kriss51
    VIP Meritorious for electroda.pl  
    How long is the radiator? You will get a much better reception if you connect the cable braid to a metal railing. Best to make 1/4 wave counterweight.
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  • #817 15535944
    Hajna
    Level 24  
    Tomorrow it is coming, but at this point the antenna picks up the best and I have no noise, because I moved to other places and there were problems with receiving it due to noise, the SDR receiver is DVB-T FM DAB 820T2 & SDR
  • #818 15535959
    kriss51
    VIP Meritorious for electroda.pl  
    Hajna wrote:
    but at this point the antenna picks up the best for me and I have no noise



    I have not written anything about relocating the antenna. It's just about the counterweight.
  • #819 15536474
    czakos
    Level 12  
    Hello colleagues after a short break :)
    Does anyone have a fraquency scanner for sdr 1332 because from a friend don_viking I got the entire program 14 .. and when I turned it off, an error appeared and he did not remember the settings later, so I had to set everything up again and 1332 works stably, but I can not find a plug that would work and I return to the topic of setting the scan, for example, the given bandwidth and at the moment when someone sends me to stop and after the transmission is finished, he scanned again like a typical scanner because now I have PSP set and I listen to 1 frequency; / and I'm interested in amplifying my antenna photos a few posts earlier . Unfortunately, the blocks around, as they are broadcast from PSP, it goes nicely but as soon as from the car to probably 2 km max; / I plan to throw a naked 42 cm on the roof, I'm just waiting for a 9 m cable :) it will then be above the blocks and let you know how it is doing :) because the dipole is too conspicuous :)
    I also ordered Nagoya NA-773 SMA-F Dual Band Antenna 144/430 MHz but somehow it does not do well on the windowsill; / she probably will be better for the scanner with the amplifier ... RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
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  • #820 15539374
    don_viking
    Level 21  
    Try to install this version from the FMSuite attachment, it will probably work with the old version of SDRSharp. There is also an eazyscanner.
    https://www.assembla.com/spaces/sdrsoft/subversion/source/HEAD/easyscanner/trunk/release/v03
    And on this page you have most of the plugins for the program.
    http://sdrsharp.pbworks.com/w/page/62589136/FrontPage
    http://www.rtl-sdr.com/sdrsharp-plugins/


    Alternatively, you can check my plugin archive in the attachment.
    I also added a more interesting reworked version of SDRSharp called SDRSharper, unfortunately there are no additional plugins there.
    Attachments:
  • #821 15542057
    Hajna
    Level 24  
    To my colleague Kriss51, the radiator is 112 cm long, the diameter at the bottom is 18 mm and at the top 10 mm, the antenna base is metallically connected to the balustrade through a metal base to which the cable shield is connected, I can sacrifice a stick and shorten it every few cm or the reception will improve.
  • #822 15543847
    kappav22
    Level 9  
    I have a question, what can I listen to it? I don't think you have heard it for some time because they have a coded signal.
  • #823 15543898
    kriss51
    VIP Meritorious for electroda.pl  
    kappav22 wrote:
    I have a question, what can I listen to it? I don't think you have heard it for some time because they have a coded signal.


    Everything in the range of 25-1700 MHz with all emissions, eg aviation, fire brigade, hams, CB, PMR, etc., after adding a converter, you can listen practically from 100 KHz. If you still use a suitable program, you can decode digital broadcasts.

    Added after 3 [minutes]:

    Hajna wrote:
    To colleague Kriss51, the radiator is 112 cm long,


    For 150 MHz, the radiator and counterweight must be 50 cm each. 112 cm is definitely too much.
  • #825 15544628
    Hajna
    Level 24  
    http://www.peter384.cal.pl/r/r.html for example, if I want to listen to PKP, this page is OK, I am asking also the MODERATOR to ask colleagues to give their location in their profile. And for example kapav22 and don_viking sparkle in tmatach. I am from Zabrze and not when you can meet.

    Added after 6 [minutes]:

    It is not the points that are important, but the knowledge of the forum members.
  • #826 15545944
    Anonymous
    Anonymous  
  • #827 15546018
    BOOM i ZONK
    Level 21  
    For starters, move the antenna further away from the building wall, as the roof antenna won't help.
  • #829 15547070
    bogi
    Level 29  
    KamilOc wrote:
    Siemano, I'm not satisfied with the range, where I receive from a DVB-T decoder and a half-wave dipole antenna .. What do you think about whether to buy a radio? Anything would help? Here, for example, this radio I wanted to buy but I wonder: http://www.banggood.com/Wholesale-BAOFENG-UV-...-Transceiver-Radio-Walkie-Talkie-p-61066.html

    Well, see for yourself that the antenna has nowhere to expand to catch the signal, I will not say because I can hear the control panel with 20 KM in the evenings, but mobile stations are approx. 2km, 3km, 4km, you can't hear it anymore, no noise ... Yes it looks like the encirclement of blocks around me:
    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector

    This radio works in the ranges of 136 - 174 MHz and 400 - 480/520 MHz (depending on the software version) + FM radio reception. So I don't know if it will please you. As for the antenna, talk to the neighbor / m and above, maybe they will let you hang at home.
  • #830 15551308
    kappav22
    Level 9  
    What could it be?
    You hear a humming noise that stops from time to time.
    RTL-SDR - an SDR receiver from a cheap DVB-T tuner on a USB connector
  • #831 15551358
    internick
    Level 36  
    Most likely your PPM is misconfigured. This is most likely a transmission on 172.6875.
  • #832 15551363
    lysy1980
    Level 33  
    He asked "what is it" - meaning "what transmission", not whether it has a well-set PPM.
    It is a digital voice broadcast.
  • #833 15551371
    kappav22
    Level 9  
    Okay, no matter what, maybe I asked the question wrong.
    How can I hear what is broadcast there?
  • #834 15551376
    lysy1980
    Level 33  
    You need to know the type of transmission and have the key - 99% you can't do anything because ... you don't have the key.
  • #835 15551382
    kappav22
    Level 9  
    And some decoder will not be able to do it?
  • #836 15551388
    lysy1980
    Level 33  
    No, because you need a key to decode.
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  • #838 15551403
    lysy1980
    Level 33  
    The number of analogue broadcasts that can be listened to is narrowing, soon there will probably be only the airline, amateurs + some PMR to listen to.
  • #839 15551417
    kappav22
    Level 9  
    And I have a question, what can I decode, for example, DSD?
  • #840 15551432
    internick
    Level 36  
    lysy1980 wrote:
    ... No, because to decode you need to have a key ...


    First you need to know what's going on there, not to write in the dark.

    When a colleague corrects the PPM, it may turn out that there is nothing to decode there.

    This system has been launched, but 99% no one is working on it. And what you can see is just a regular frame.
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Topic summary

The discussion centers on using inexpensive DVB-T USB tuners, particularly those based on the RTL2832U chipset combined with various tuner modules like the R820T and E4000, as software-defined radio (SDR) receivers. These devices, originally intended for digital TV reception, can be repurposed for wideband SDR reception from approximately 25 MHz up to 1.7 GHz, covering amateur radio bands, FM broadcast, airband, ADS-B, and more. Modifications such as direct antenna connection to the RTL2832U chip pins enable reception of lower frequency bands (below 30 MHz), including shortwave, though precautions against electrostatic discharge and signal surges are necessary. Upconverter circuits based on chips like LA1186, LA1185, and TA7358AP are commonly used to extend reception down to HF and VLF bands by frequency shifting signals into the tuner's range. Various software solutions including SDR# (SDR Sharp), HDSDR, and dump1090 are recommended for Windows and Linux platforms, with driver installation often requiring tools like Zadig to replace default DVB-T drivers with RTL-SDR compatible ones. Users report challenges with driver installation, device recognition, and antenna selection, especially for frequencies outside the FM broadcast band. Amplifiers such as the FP6L and antennas like Discone or long wire are suggested to improve reception quality. Mobile and embedded platforms like Raspberry Pi and Android devices with USB OTG support are explored for portable SDR setups. The community shares detailed schematics, installation guides, and troubleshooting tips, emphasizing the cost-effectiveness and versatility of RTL-SDR dongles for radio experimentation and monitoring.
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