I added two programs with changed drivers for those interested in listening to KF. Thanks to these drivers, you do not need to combine anything with the tuner and do an upconverter, just go lower with the frequency. The program receives from 13MHz up. In some cases, with a good antenna, reception is also possible below 13 MHz. I recommend these versions, or if you prefer to read, visit this page and familiarize yourself with the topic. http://www.rtl-sdr.com/direct-sampling-mode-hardware-modifcations/
If you want to receive below 13 MHz, you have to turn on the tuner in the tuner settings RTL AGC and set the gain slider in the right place. Too little or too high gain and we won't hear anything. Everyone has to find the right position individually. The settings in the photo only worked on one of my tuners, on the other I had to reduce the gain. And here is the decoded transmission and there is evidence that it is receiving less than 13 MHz on a 1.25m antenna.
For better reception below the 13 MHz band, if someone does not have an antenna on the HF, I recommend connecting the FP6L amplifier and disconnecting the ground from the antenna. The pictures show the effects of the cable connected only to the radiator, the mass does not touch the socket.
On the replaced controller, you can listen to DAB + radio on this program. http://www.sdr-j.tk/index.html And here is the download file http://www.sdr-j.tk/windows-bin-dab.zip The program is quite good, but not yet polished photos do not decode very well and the text window is also quite small for two lines. But very good for listening. When it comes to a typical professional program, everything works perfectly, but unfortunately you have to have the original drivers and unfortunately it does not work on Vista and Win XP. http://www.ukwtv.de/cms/downloads-aside/281-dab-player-von-andreas-gsinn.html When it comes to TV, there is currently no program for its reception on drivers replaced for windows, although something has been written recently under Linux. http://www.rtl-sdr.com/a-gnu-radio-based-isdb-t-and-rtl-sdr-compatible-1seg-decoder/ On the original drivers, I recommend Total Media 3.5 There you can watch TV and listen to it DAB + radio. I tested it and it worked satisfactorily. And for everyone interested in programs for SDR, please visit the website http://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/ There is everything you need.
After a year of time, I decided to go back to playing with the tuner. Unfortunately, after installing the original drivers, it does not catch anything at all. When replacing the drivers with SDRSharp, I only have three FM stations and this with a gain of 42dB. Have I released my dongle?
It's best if you wrote what tuner it is and check it on a different antenna. But the symptoms are as if the diode is damaged at the antenna input. I had tuners without these LV5TDLX LEDs, when I had such a symptom, I knew that the FC0013 head fell, At least that was what happened with me, a small overvoltage, a spark. For those interested in listening to multiple channels at the same time, I added plugins for SDRSharp old and new versions in the attachments. I checked on both and they work. The video shows how someone tested it on 10 channels at once. https://www.youtube.com/watch?v=0_0-9sleBx4 I will add that the links are saved in the file Plugins.xml .
Don_viking, as always, aptly because I still haven't dealt with this fraquency scanner; / Out of curiosity, I added the antennas, now I installed the nude on the top and it is currently working on it, but I wonder what amplifier to use for it. Ps. I ordered the Uniden Bearcat UBC92XLT, it should collect nicely on such a high mounted nagoya? Because as much as MSK from PSP I can hear, the cars a bit further into the city are just noises, I want to order 9 m of sma cable, what would I give it even higher. Goes to somehow measure which of them is doing better? Does the length of the cable have a significant impact because with the antenna cable (about 2m) it will be 11m of cable
I have a question regarding the two tuner versions R820T and R820T2. As standard, I installed the first version of the R820T tuner, replaced the drivers with the driver and everything worked. Later I connected the dongle with the R820T2, giving him the driver in the same way with the help of the beat. Same driver included with SDR #. In the console, R820T2 is detected as R820T. There is an inscription on the integrated circuit with a two at the end. What is the driver version for R820T and R820T2? Can I download the driver for the R820T2 somewhere? Are the only differences in both versions due to the improved signal input path? Or maybe my donglu layout only has a defined "2" at the end? I bought a version with a two at the end because I was hoping for better sensitivity, but nothing has changed.
R820T2 has slightly better sensitivity and improved SNR - it is detected as R820T and does not need another driver. If you don't want to mess with reinstalling drivers or similar things in programs - it happens because different tuners have different EPROM contents, then copy EPROM contents from one tuner and upload to the other. The copying does not affect the parameters of the tuner.
At the outset, I want to say hi, because this is my first post.
I have a little problem. For 2 years I used the DVB-t RTL2832U & R820T tuner, on windows 7, I only watched TV. Now I have upgraded my computer, a new motherboard with USB3.1, 3.0 and 2.0 sockets and additionally installed Win10. Unfortunately, I can't run the tuner on this set. I am trying to watch DTV and progDVB on Blaze and symptoms as if there is no signal from the Antenna. Can someone tell me what driver will solve my problem?
Tuners of this type work on USB2.0 ports. I checked on others and despite installing drivers, the device program did not see. Connect to the USB2.0 port, the win10 system should detect it itself and install the drivers. It is also important that the .NET Framework is installed. At my friend's, it was like that with this tuner in a blue housing.
Check the manufacturer's website if there is one and download the drivers for win10. If you do not find it, try to install those from the original board yet. I do not know what tuner you have and I do not have this system, so I do not know what to advise you. A buddy has the one in a blue housing and he works on win10 TV, he receives no charge.
Do we set nothing apart from the listed ones? How to move the scanner because the channel received on 144 receives 148, how much do you have to move in the config?
Depending on what tuner you have, you can receive wide reception. On normal drivers from 23MHz to even 2200MHz. And on these programs, which I have put as attachments in this topic, a few posts above https://www.elektroda.pl/rtvforum/topic2353101-840.html#15554132 as you can see in the pictures, you can listen even below 5MHz. If you want to change the frequency in the program, you move the mouse over the digit you want to change and you turn the wheel on the mouse up or down. Nothing changes in "config". Pickup description page depending on tuner layout. http://sdr.osmocom.org/trac/wiki/rtl-sdr
In general, I have very high noise when I am waiting for some broadcast, it can be muted somehow squeletch does not work for me, and I hear stations very clean but very quiet. I have a half wave dipole. And I have something like this, suppose that the frequency is 122.800 and it receives 122.803, I did according to the instructions from my colleague's post above
First, it is WFM that is used to receive radio stations in the 88 to 108 MHz band. You should set the NFM if you are listening from 140 to 175 MHz and there on the left you will see "Squelch" there you mark under the inscription you have 50, you set it until it stops humming. Set the bandwidth to 9700. And you have the aviation band set from 108 to 140 MHz and there you listen in AM modulation. I suggest you search the web for basic information about bands in Poland and the modulations used there. The fact that someone is detuned at 3kHz is sometimes the case that not all stations are in the frequency. In the appendix there is a description and division of frequencies old but useful as basic information. I also recommend the page below there is a lot of useful information. http://elektronikjk.republika.pl/index.html
Will I receive SSTV modulations on 14.230 MHz with the Up converter, often on Saturday / Sunday the radio amateurs transmit in SSB mode. Receiving images using MixW2.19 or MMSSTV, JVCom32
Seeing the frequency in the video, I think that it is a signal from some pumping station or other remotely monitored devices. On this search engine I entered the signal frequency and it showed several transmitters check digital or map. http://uke.kurylowicz.info/?q=436.9375
as for 172mhz, this constant carrier - it can be some cross-sectional, this is often used by analog and digital mototrbo transmission. If you want to listen, a decoder is required. best regards
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. Summary generated by the language model.
because I still haven't dealt with this fraquency scanner; /
