Intro to SDR and RF Signal Analysis
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Intro to SDR and RF Signal Analysis
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Re: Intro to SDR and RF Signal Analysis
#2For anyone interested in Software-defined radio (SDR) I can also highly recommend the Cyberspectrum YouTube channel [1].
[1] https://www.youtube.com/playlist?list=PLPmwwVknVIiXGzKhtimTM...
Re: Intro to SDR and RF Signal Analysis
#3For anyone interested in Software-defined radio (SDR) I can also highly recommend the Cyberspectrum YouTube channel [1]. [1] https://www.youtube.com/playlist?list=PLPmwwVknVIiXGzKhtimTM...
There is also meetup groups in San Francisco [1] and Melbourne (Australia) [2].
Re: Intro to SDR and RF Signal Analysis
#4For what it's worth, Great Scott Gadgets (Michael Ossman's group) put out a great series of primers [1] on Software Defined Radio (SDR) and the fundamentals of Digital Signal Processing (DSP) a while back, that are some of the best I've seen out there to date.
Re: Intro to SDR and RF Signal Analysis
#5For anyone interested in Software-defined radio (SDR) I can also highly recommend the Cyberspectrum YouTube channel [1]. [1] https://www.youtube.com/playlist?list=PLPmwwVknVIiXGzKhtimTM...
There is also meetup groups in San Francisco [1] and Melbourne (Australia) [2]. [1] https://www.meetup.com/en-US/Cyberspectrum/ [2] https://www.meetup.com/en-US/Cyberspectrum-Melbourne/
Not at _all_ surprised to see Balint Seeber's name prominently in some of those links...
That guy gives some _amazingly_ interesting talks - I got into SDR pretty much purely based on a presentation of his at DorkBot in Sydney a long time back...
Re: Intro to SDR and RF Signal Analysis
#6If you want to dabble for _cheap_ with SDR, the RTL-SDR [1] is a It allows to listen to FM radio, decode most 433MHz devices (weather stations), car keys signals, and even NOAA weather satellites [2] with a DIY antenna [3].
[1] https://osmocom.org/projects/sdr/wiki/rtl-sdr
[2] http://www.rtl-sdr.com/rtl-sdr-tutorial-receiving-noaa-weath...
[3] http://tinhatranch.com/how-to-build-a-qfh-quadrifilar-helix-...
Re: Intro to SDR and RF Signal Analysis
#7If you want to dabble for _cheap_ with SDR, the RTL-SDR [1] is a It allows to listen to FM radio, decode most 433MHz devices (weather stations), car keys signals, and even NOAA weather satellites [2] with a DIY antenna [3]. [1] https://osmocom.org/projects/sdr/wiki/rtl-sdr [2] http://www.rtl-sdr.com/rtl-sdr-tutorial-receiving-noaa-weath... [3] http://tinhatranch.com/how-to-build-a-qfh-quadrifilar-helix-...
Can you suggest something that could be used to read or reprogram wireless access cards, such as the HID Proxcard II? I want to clone my apartment's key fob into a bracelet I can wear when I go jogging.
Re: Intro to SDR and RF Signal Analysis
#8If you want to dabble for _cheap_ with SDR, the RTL-SDR [1] is a It allows to listen to FM radio, decode most 433MHz devices (weather stations), car keys signals, and even NOAA weather satellites [2] with a DIY antenna [3]. [1] https://osmocom.org/projects/sdr/wiki/rtl-sdr [2] http://www.rtl-sdr.com/rtl-sdr-tutorial-receiving-noaa-weath... [3] http://tinhatranch.com/how-to-build-a-qfh-quadrifilar-helix-...
Can you suggest something that could be used to read or reprogram wireless access cards, such as the HID Proxcard II? I want to clone my apartment's key fob into a bracelet I can wear when I go jogging.
If you have an Android phone, grab a NFC reader app - this should at least tell you if the card is able to be cloned.
Re: Intro to SDR and RF Signal Analysis
#9Earlier quoted context omitted.
Can you suggest something that could be used to read or reprogram wireless access cards, such as the HID Proxcard II? I want to clone my apartment's key fob into a bracelet I can wear when I go jogging.
If you have an Android phone, grab a NFC reader app - this should at least tell you if the card is able to be cloned.
Not all RFID cards are created the same. Most RFID cards that are some kind of "smart" (i.e. contactless bank cards, subway tickets) conform to ISO/IEC 14443 standard that mandates the use of ~13.5MHz carrier to communicate between the reader and the card. This is "the NFC" as your phone understands it.
Proximity cards used for door access usually have the 125kHz carrier compatible with the EM-Marin EM4100. No cell phones I know of have an antenna for this frequency range; therefore, no phone can read, clone or emulate an EM-Marin proximity card.
Since the HID Proxcard II is a "value priced 125 kHz proximity card", you cannot use a phone to read it.
Re: Intro to SDR and RF Signal Analysis
#10Great intro, and nice links in the comments, excellent!