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

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#1411 18018885 19 Jun 2019 11:53

Anonymous Anonymous

Level 1

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Post #1411
18018885 19 Jun 2019 11:53

don_viking wrote:

Now I am adding a diagram of the antenna from the VAISAL probe GPS receiver, which I found on the network. The only error in the drawing is the direction in which the antenna elements are bent.

On ebay you can buy 'new' probes RS80-15GH just with such an antenna. There, on the antenna board, there is also a PLL synthesis and a mixer and the received signal is mixed to zero IF (LO has a frequency equal to the GPS carrier), then it modulates the 403 MHz carrier and sends it to the Earth.
Which SDR receiver are you using? I tried to see the GPS signal on a typical ceramic GPS antenna with a built-in power supply, but I can't see anything.
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#1412 18019556 19 Jun 2019 18:41

don_viking don_viking

Level 21

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Post #1412
18019556 19 Jun 2019 18:41

I use the regular Chinese on the R820T with a blue case. Quartz controlled, not a generator. Offer from this pages. As for ceramic antennas, they can be used after removing the filter. IN this on the link you have a description of how to do it. I haven't tested it, but I've read that it works.

Below Link to the srtonka with a description of how to modify the probe and receive the satki with its antenna and amplifier.
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#1413 18019666 19 Jun 2019 19:46

Anonymous Anonymous

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Post #1413
18019666 19 Jun 2019 19:46

don_viking wrote:
I use the regular Chinese on the R820T with a blue case. Quartz controlled, not a generator. Offer from this pages. As for ceramic antennas, they can be used after removing the filter. IN this on the link you have a description of how to do it. I haven't tested it, but I've read that it works.

Below Link to the srtonka with a description of how to modify the probe and receive the satki with its antenna and amplifier.

Ok, thanks for the links - I'm building my own GPS receiver, so I'm interested in filters.
#1414 18039418 01 Jul 2019 19:21

don_viking don_viking

Level 21

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Post #1414
18039418 01 Jul 2019 19:21

Hello everyone.
Has anyone read this article and is it a real threat to the 2m band?

https://fmdx.pl/2019/06/zagrozenie-dla-pasma-...ja-kokieta-nowego-pasma-lotniczego/#more-9632
#1415 18039478 01 Jul 2019 19:59

flinc flinc

Level 28

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Post #1415
18039478 01 Jul 2019 19:59

Option to report the use of the amateur band for air traffic navigation 2 m 144-145 MHz The reporting person is probably a kamikaze
#1416 18039634 01 Jul 2019 21:18

c2h5oh c2h5oh

Moderator

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Post #1416
18039634 01 Jul 2019 21:18

Gentlemen! Please stick to the topic.

Thank you.
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#1417 18039684 01 Jul 2019 21:42

Anonymous Anonymous

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Post #1417
18039684 01 Jul 2019 21:42

flinc wrote:
Option to report the use of the amateur band for air traffic navigation 2 m 144-145 MHz The reporting person is probably a kamikaze

Air traffic is growing and fewer people are playing chatting over the radio in the age of the Internet and mobile phones. If this is an initiative that came from the commercial aviation community then ... you have no chance.

Moderated By c2h5oh:
3.1.14. Don't post off-topic messages or in the wrong forum section.
I asked. The next post not related to the main topic will be thrown into the trash and the author will be appropriately rewarded.
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#1418 18051523 09 Jul 2019 08:08

don_viking don_viking

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Post #1418
18051523 09 Jul 2019 08:08

Hello. I would like to refer to post 1409. Well, between the frequencies 1546.000 and 1546.400 it is possible to listen to the telephone conversation via satellite between the plane and the ground crew. Thanks to the "JAERO" program, the digital signal is converted into modulation. To receive the signal I use the "SDR CONSOLE v 3.0.10" program because it transmits the audio signal better and thus "JAERO" decodes the modulation better.

I have added a short audio sample in the attachment. I would like to add that "JAERO" automatically records the received transmission. I encourage you to test and greet.

Attachments:

audio.ogg Download (25.29 KB)
#1419 18053935 10 Jul 2019 15:25

kokolino1 kokolino1

Level 11

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Post #1419
18053935 10 Jul 2019 15:25

Hello, I will connect to the topic with the question about driver installation. I try to install as instructed and keep crashing a message saying that the installation has been aborted by the user.

[movie: 4947a0c6d0] https://filmy.elektroda.pl/28_1562765031.mp4 [/ movie: 4947a0c6d0]
I have no idea anymore.
I am asking for help in finding the cause.
#1420 18054114 10 Jul 2019 17:19

Anonymous Anonymous

Level 1

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Post #1420
18054114 10 Jul 2019 17:19

Run this soft as administrator, as it won't help, disable the antivirus.
#1421 18054178 10 Jul 2019 18:03

kokolino1 kokolino1

Level 11

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Post #1421
18054178 10 Jul 2019 18:03

Thanks for the answer, this method has been tried in all possible ways .
#1422 18054315 10 Jul 2019 19:10

Tomasz.W Tomasz.W

Level 35

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Post #1422
18054315 10 Jul 2019 19:10

Hello.
1) What are windows?
2) The DVB drivers from the PCB provided with the dongl have probably been installed.
#1423 18054999 11 Jul 2019 08:11

kokolino1 kokolino1

Level 11

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Post #1423
18054999 11 Jul 2019 08:11

Windows 10 64bit, I did not have any driver board for the dongle.
I tried to upload the drivers as it is in many instructions.
I tried on a different computer and it went the same way without any problem.
best regards
#1424 18055894 11 Jul 2019 17:19

mrqpa mrqpa

Level 13

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Post #1424
18055894 11 Jul 2019 17:19

I am trying to install an antenna installation in my apartment and I thought to connect the antenna for ADS-B reception, GSM900 band end or 23 cm band to the crossover with the "SAT" input (for satellite converters, 950 - 2100 MHz). I know that it is much better to make such antennas using 50 Ohm cables, but it is about convenience - to broadcast RTV signals and, for example, from ADS-B reception with one cable. I will not use satellite TV.
Will such a thing be perceived better than on the proverbial piece of wire if it is properly made and placed? Are there any tested antennas for the GSM900, ADS-B and 23 cm bands made using 75 Ohm cables?
#1425 18055998 11 Jul 2019 18:30

kokolino1 kokolino1

Level 11

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Post #1425
18055998 11 Jul 2019 18:30

Welcome back.
Problem solved, it turned out that my computer does not like the new version of the zadig program, after downloading version 2.1.0 everything was book-like.
Thanks for trying to help.
#1426 18164302 12 Sep 2019 13:06

don_viking don_viking

Level 21

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Post #1426
18164302 12 Sep 2019 13:06

Hello colleagues. Once upon a time, there was such an app for the tuner called SDRSharper. A newer version of the pod this link. Personally comparing the four programs, i.e. SDRsharper, SDRSharp, HDSDR and SDRConsole, I would recommend SDRConsole to receive ordinary analogue and digital transmission on VAC. In my opinion, as a free new version 3.0.13 is the best solution for more advanced in the subject.
#1427 18209653 09 Oct 2019 09:11

charper charper

Level 9

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Post #1427
18209653 09 Oct 2019 09:11

Hello, does anyone have a list of FM broadcasts from our western (and not only) neighbors? Today, there are no special propagation conditions, and I manage to receive a periodically fading radio signal from the transmitter in Lubań, i.e. around 360 KM km from me. There was also a German speech for about a second, probably Radio Berlin. In about a week in fine weather a track is due, so I am gathering data and experience to be prepared for DXing. My antenna is (surprisingly) a 9-element collinear for the ADS-B band, made of a white RG-58 concentrator, the shortening factor is about 0.95, about 8 meters above the ground, and the horizon is not interesting, maybe not as bad as it is in city, but it is not clean either.
#1428 18211053 09 Oct 2019 22:57

mrqpa mrqpa

Level 13

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Post #1428
18211053 09 Oct 2019 22:57

When it comes to the list of stations with frequencies, it is e.g. here: Radiomap Germany
#1429 18211814 10 Oct 2019 14:52

OK2STO OK2STO

Level 20

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Post #1429
18211814 10 Oct 2019 14:52

mrqpa, thanks, good page with frequencies.
Regards, Jard
#1430 18211954 10 Oct 2019 16:06

mrqpa mrqpa

Level 13

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Post #1430
18211954 10 Oct 2019 16:06

In the case of Poland, I see that there is a lack of local broadcasting stations from small towns, but I see other countries being better developed.
#1431 18214608 12 Oct 2019 10:31

charper charper

Level 9

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Post #1431
18214608 12 Oct 2019 10:31

Polish frequencies can be found on the website of Radiopolska "FM emission list"
#1432 18219919 15 Oct 2019 09:14

Hektar Zahler Hektar Zahler

Level 34

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Post #1432
18219919 15 Oct 2019 09:14

Hear. 100 point question

It is possible on Android 4.x without an integrated USB Host to use an adapter that will allow you to connect a USB SDR, is it impossible?
#1433 18220633 15 Oct 2019 17:44

BOOM i ZONK BOOM i ZONK

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Post #1433
18220633 15 Oct 2019 17:44

Have you tried to use an OTG cable and, for example, a mouse / keyboard / pen? What is this Chinese device or something branded? You can also try to power the accessory from the outside and connect only mass and data +/-. See how the WiFi card is organized there can be released via USB.
#1434 18221784 16 Oct 2019 10:48

Hektar Zahler Hektar Zahler

Level 34

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Post #1434
18221784 16 Oct 2019 10:48

As the flash of the ciupagi says In fact, you should be able to replace the webcam. I will try and let you know. Regular OTG cable doesn't work because android doesn't have USB host. This is the Overmax OV-Quattor 10 + E. These tablets can be purchased with a wholesaler of functional pears cap, only the lottery risk is what you will hit. Perfect SDR equipment, but unfortunately no OTG.
#1435 18221795 16 Oct 2019 10:53

ArturAVS ArturAVS

Moderator

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Post #1435
18221795 16 Oct 2019 10:53

Hektar Zahler wrote:
These tablets can be purchased with a wholesaler functional pear cap

A hat of pears, or how many? Because I just need a 10 "for a similar purpose, and spending a few hundred bucks does not smile very much.
#1436 18221806 16 Oct 2019 10:59

Hektar Zahler Hektar Zahler

Level 34

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Post #1436
18221806 16 Oct 2019 10:59

Right down a hundred if you think right.

PS

I forgot to add that the inability to upload the SDR driver can be bypassed by uploading its archived version, but the USB does not work.
#1437 18229266 20 Oct 2019 13:58

fnusb fnusb

Level 7

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Post #1437
18229266 20 Oct 2019 13:58

What could be the reason if I am listening to the band on the DVBt stick and it interrupts all interlocutors? I have an additional antenna soldered to the standard input, in the sense that the wire and the screen are soldered to the socket on the board. For several days he has been interrupting when someone says something like noises ... I will also add that I walk 14 hours a day practically online with the Sharp sdr. Could this be the reason something burned out? I've had it for about 5 years ... Greetings. I am writing to you because someone may have had a problem and I cannot cope with it anymore and I do not know whether to order a new one or what.
#1438 18230469 21 Oct 2019 04:07

flinc flinc

Level 28

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Post #1438
18230469 21 Oct 2019 04:07

In Config, change the sample rate e.g. to 1.4 mpsp Different samplerate values are used depending on the PC processor
#1439 18362062 27 Dec 2019 01:45

pomer74 pomer74

Level 1

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Post #1439
18362062 27 Dec 2019 01:45

My computer booted for SDRSharper before, now it won't. how do i solve this problem?
#1440 18363004 27 Dec 2019 17:34

flinc flinc

Level 28

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Post #1440
18363004 27 Dec 2019 17:34

pomer74
Check out the OE1KDA Krzysztof Dąbrowski website
In device manager the tuner should be USB in Bulk-in, interface 0
Install Zadig different versions depending on WIN XP / WIN7
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Topic summary

The discussion revolves around the use of RTL-SDR (Software Defined Radio) receivers, specifically utilizing inexpensive DVB-T tuners like the RTL2832U and R820T models. Users share experiences regarding the capabilities of these tuners to receive a wide range of frequencies, including AM, FM, and shortwave bands. Concerns about potential damage to the tuners when connecting antennas directly to the RTL2832 chip are raised, along with suggestions for protective measures such as using diodes. Various software options for SDR, including SDR# and HDSDR, are discussed, along with installation issues and driver compatibility. Users also explore antenna options, modifications for improved reception, and the effectiveness of different setups for receiving signals across various bands.
Summary generated by the language model.