Decoding FT8 with a RTL-SDR (Software defined Radio)

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So to kick off my series of tutorials of HF digital mode decoding with the RTLSDR, I've started with FT8.
FT8 is a amateur Radio digital mode of communication.
Using a Cheap Software defined radio dongle, with a software mod to get it into the lower HF Bands, we are able to use it to decode those FT8 Signals.
The software mod can be downloaded here:
www.dropbox.com/s/0lzx9gz9x1b...
The Software to decode FT8 (WSJT-X) can be found here:
physics.princeton.edu/pulsar/...
The RTLSDR dongle used in the video can be found here:
amzn.to/3fXnxNM
You can download GridTracker here:
tagloomis.com/grid-tracker/
Make sure to check out my blog, and shop over at:
themodernham.com .
⚡ Join the ModernHams Discord: ⚡
/ discord
➡️Join this channel to get access to perks⬅️
/ @modernham

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Опубликовано:

3 июн 2019

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Комментарии : 54

@jvbenjamin 4 года назад

You explain things very well!! Greetings from a remote location in India.

@markusman62 3 года назад

great job, I followed the video and got my RTL-SDR decoding FT8! Thank You So Much 73 DE KB9WLX.

@ModernHam 3 года назад

Glad it helped

@backcountryamateurradio 3 года назад

simple! and straight-forward. Thanks for making this video.

@00Widget Год назад

Man I cant believe i got this to work !! you give awesome instruction!

@pauliuspile 3 года назад

Very well made tutorial, thank you.

@zerofighter2778 Год назад

works well for me, thank you very much! helpful tutorial👍🏻

@vk3awa 4 года назад

WELL DONE. I now have a use for my RTL.SDR. Cheers VK3AWA

@TheArtofEngineering 2 года назад

But CW....is so much easier?? :)

@k8osradioscience545 5 месяцев назад

Many Thanks.. Works perfectly!😎

@ElectronicsCuriosities Год назад

Thanks for this video 👍

@gfaza 5 лет назад

Hi! Excelent tutorial! But... Why do you need to replace the driver? Because you had configured the device in Q Branch, and with the standard driver that also can be done. Does the new driver provide more features? THanks!

@andygee7017 4 года назад

Great stuff young fellah M7LCY

@yurekkrol6702 3 года назад

Well done. It help me lot.

@vk3awa 4 года назад

I have the configuration set up as described in your video. However, I have an issue you may be able to help me with. The waterfall on WSJT-X is 7Khz wide instead of 2.4. I can't find where to change it in the software. In SDR# it is set to 2.4. THANKS Daryl de VK3AWA

@coroamanicolai4527 Год назад

Many thanks!

@abdelhaleemwaheed131 3 года назад

should I set rig option to none in wsjt-x settings?

@JediKnife 2 месяца назад

Brilliant explanation, thank you! Subscribed. Can RTL-SDR decode C4FM (Yaesu digital)?

@cbdeshmukh1 3 года назад

Very nice video

@fernandoamicone6438 3 года назад

Thanks you !

@PaulaBean 3 года назад

Thank you very much for this instructional video. I'm on Ubuntu, so I have to find an alternative to that Virtual Audio Cable...

@JasonRobinsonidaho 4 года назад

IS the replaced DLL necessary for SDRSharp for RTL-SDR? Mine was able to scan down to HF on my 40m dipole.

@user-wg3fe3ij2o 10 месяцев назад

Wondering the same

@Lindholmer5k Год назад

Are you saying i could use a sheet metal roof as an antenna?

@TheAcidTag 5 лет назад

Great video! You can use my CalicoCAT plugin to control SDR# from WSJT-X as well! -N0TTL

@ModernHam 5 лет назад

I haven't personally, but someone told me you can use a virtual serial port with sdr console to achieve this. (Which may be what you're referring to) I'm just not familiar with the software.

@TheAcidTag 5 лет назад

@@ModernHam CalicoCat is a plugin for sdr#, not related to sdr-console. You can get it from tagloomis.com/calicocat/ same place as GridTracker

@ericmoeller3634 2 года назад

I don't know if u have to download that dll file the one i have installed is labeled as ExtIO_RTL2832.dll all i did was enabled direct sampling in the software i use sdr consle the same with cubic sdr and i cant get sdr sharp to run on my computer im have the same issues others said they where having on the website that makes that radio u have i have the same one

@Mach7RadioIntercepts 4 года назад

Virtual cables in Linux can be set up in Pulseaudio.

@Kc8qdq Год назад

Will it do 6 meter ?

@ModernHam 5 лет назад

Let me know what other projects you would like to see with the rtlsdr!

@jacks9931 5 лет назад

Somehow, will it be possible to capture RFID card signals with sdr or sniff RFID card while it communicate with the tag reader using sdr.

@giamma-basedresearcherssdr7178 5 лет назад

@@jacks9931 below are some online codes: github.com/jcrona/gr-nfc github.com/kreier/rfid-125 github.com/Iskuri/RTLSDR-NFC Sniffing and decoding NFC with a DVB-T stick (RTL-SDR) and GNURadio: blog.rona.fr/post/2017/10/15/Sniffing-and-decoding-NFC-with-a-DVB-T-stick-rtl-sdr-and-GNURadio Video: www.rtl-sdr.com/listening-to-an-nfc-polling-signal-from-a-nexus-7-with-an-rtl-sdr/ ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wPi3PC3F-yw.html

@ModernHam 5 лет назад

@@giamma-basedresearcherssdr7178 looks like it's already been done. But I'll see if I can add something new to the mix.

@jacks9931 5 лет назад

@@giamma-basedresearcherssdr7178 thanks for the content. I was thinking to capture and replay signals using sdr and Pi for cards like Desfire (8 digit UID) where proxmark3 failed to clone.

@giamma-basedresearcherssdr7178 5 лет назад

@@jacks9931 proxmark3 seems to me a good product and maybe if you can't clone it depends on the code you use since the technical specifications are enough to handle almost everything ... Desfire has security levels "AES 128-bit and LRP authentication and secure messaging" and "DES / 2K3DES / 3K2DES / AES crypto algorithms" which may not work with parrot attack, repeating messages, recording and repeating the message, etc ... Code for proxmark3 and Desfire: github.com/AbinMM/proxmark3-desfire github.com/nv1t/proxmark3 Link: www.nxp.com/products/identification-security/rfid/mifare-hf/mifare-desfire:MC_53450 www.nxp.com/docs/en/application-note/AN12321.pdf Discussion: github.com/emsec/ChameleonMini/issues/31

@slimpeabody7012 4 года назад

A user customizable front end would be the cat's meow.

@terryboyle 2 месяца назад

sadly the links to the dropbox and Princeton are no longer working

@norrinradd8952 4 года назад

Is the software mod required for the newest V3 dongle? Thanks for the great video. Thumbs up and subscribed.

@andrewhamop6665 4 года назад

Yeah I thought so too, but I have the new V3 and I think can do that with a diffrent sample mode. I've lissened to short wave with it

@frequencywatchers Год назад

What A Wonderful Video ! :) I Just Got My Brand New RTL.SDR , The Black One. I Have All My Antennas In My Attic :) Just Bought A New Coaxial :) BTW, Did You Know A Fact That You Can Make Your OWN SDR With Computer MIC IN Line? :) You Just need To Know Few Things

@tudseaturtle 2 года назад

My pc cannot find my .net file

@chewdoobautomotivedetailtm2883 Год назад

hey ty for sharing .. im gonna here those bastards who are speculating cause of my past harrassing me by following me every i got their 4 6 now lol ty

@European_Roaming_Diaries 4 года назад

PLEASE TELL HOW TO BUY THE CONNETOR WIRE ? EBAY ? HOW TO FIND THE CONVERTER , CONNECTOR WIRE

@claudem.p.7969 4 года назад

virtual cables only for windows so no linux, no Mac no Raspberry Pi

@ModernHam 4 года назад

With pi, you can use the "rtl_fm" library to pipe audio streams.

@bennguyen1313 4 года назад

Is there a link to the modified rtlsdr.dll? Is it this 'direct sampling' one? Could the (nooelec) Ham-It-Up be used instead? www.dropbox.com/s/0lzx9gz9x1bzczz/rtlsdr_NOHARDWAREMOD_VC.dll?dl=0 Any thoughts on using Olivia (500/16 or 1000/32) for HF Digital? Or plans for a video on just the general differences between all the digital modes, PSK31/PSK63/RTTY.. WINMOR / PACTOR (for Winlink 2000).. it's very confusing! (Gary Pearce had a good older episode of HamRadioNow that briefly talks Digital Voice ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Q01-N9TsyIo.htmlm40s )