Can you guys link to the, "previous talk Justin gave," before Dominic? Dominic mentioned it at multiple points during this presentation. I checked the description but didn't see any links. I'll check your uploads after finishing this, but it would still be handy for others to find more easily. Dominic also mentioned boards "we make" in the context of the GreatFET. I know these talks and uploads are not intended as promotional advertising by those involved, but a minor reference or link to the person and company in the description or a pinned comment would be a nice touch. I know the point is to direct people to the Hackaday site, and I visit quite often. These types of linked references are largely a community building convenience kind of thing for those of us on YT, especially people like myself on the mobile app. That's just my $0.002 adsense as a simple hobbyist, and someone that got into the hobby because of the efforts of Hackaday and others. Thanks for the uploads and especially ones featuring the hardware side of things. This is one to save in a playlist for future reference. Much appreciated ;) -Jake
Man I want to understand the 1st and 3rd talks - this whole receiving thing looks really cool. I would love to unleash the I2S bus on the ESP8266 at 173 MHz with the 1-bit stream.
Regarding the fm receiver, I get you need to generate/add the carrier frequency from the GreatFet to the signal coming from the antenna.. but isn't fm modulation done as sine waves, and if so, how does the square clock source from the micro not cause a problem? And why is a diode needed before it goes to the ADC? Is that post-transmission pilot tone from the radio standard? Looking at its grc flow (Ridiculous-Radios-Supercon-2018.pdf), what is the breadboard.dat source? And why must it go thru a power squelch before the NBFM receiver? Regarding transmitting FSK, is the NXP LPC4330's SCU that allows you to mux the output between one center frequency and another, a standard feature among microcontrollers?
2 месяца назад
You can look at squarewave as a lot of sinewaves at multiple of main frequency (harmonics) He has a sine at "desired frequency", but also, at harmonics. That is not the only thing "wrong" with this setup, but, yeah, if there is nothing around harmonics, this is, I can not say fine, but, will do somethibg...
Wouldn't it be really good if this guy took his amateur radio exam. Got a licence & experienced what he's trying to explain. Then he could use an Adalm Pluto or a Lime SDR as they can transmit & receive many forms of modulation. We can hear he "like" it as he keeps saying "like". Like, he could easily pass the radio exam because he's a clever chap.
This video has a very low signal to noise ratio. It seems the technical content in this video could have been presented in 1/3rd the time minus the irrelevant material. You wasted a lot of time saying you do not have time!
Such an awesome talk, love the oversampling!
This is a great talk! Thank you!
Can you guys link to the, "previous talk Justin gave," before Dominic? Dominic mentioned it at multiple points during this presentation. I checked the description but didn't see any links. I'll check your uploads after finishing this, but it would still be handy for others to find more easily.
Dominic also mentioned boards "we make" in the context of the GreatFET. I know these talks and uploads are not intended as promotional advertising by those involved, but a minor reference or link to the person and company in the description or a pinned comment would be a nice touch. I know the point is to direct people to the Hackaday site, and I visit quite often. These types of linked references are largely a community building convenience kind of thing for those of us on YT, especially people like myself on the mobile app.
That's just my $0.002 adsense as a simple hobbyist, and someone that got into the hobby because of the efforts of Hackaday and others.
Thanks for the uploads and especially ones featuring the hardware side of things. This is one to save in a playlist for future reference. Much appreciated ;)
-Jake
@upcycle_electronics I agree with 100% of your comment!
Justin McAllister
Simple Antennas to Survive the Zombie Apocalypse
Not uploaded yet by the look of things
@@scienteer3562Now it is, thanks for the exact title
ruclips.net/video/MMnpBOwu2I0/видео.html
Man I want to understand the 1st and 3rd talks - this whole receiving thing looks really cool. I would love to unleash the I2S bus on the ESP8266 at 173 MHz with the 1-bit stream.
Dominic that's awesome, I have the hackrf and was looking into the opera cake or my own A/S
I love Dominic, he is ace! Looking forward to more talks
Regarding the fm receiver, I get you need to generate/add the carrier frequency from the GreatFet to the signal coming from the antenna.. but isn't fm modulation done as sine waves, and if so, how does the square clock source from the micro not cause a problem? And why is a diode needed before it goes to the ADC? Is that post-transmission pilot tone from the radio standard?
Looking at its grc flow (Ridiculous-Radios-Supercon-2018.pdf), what is the breadboard.dat source? And why must it go thru a power squelch before the NBFM receiver?
Regarding transmitting FSK, is the NXP LPC4330's SCU that allows you to mux the output between one center frequency and another, a standard feature among microcontrollers?
You can look at squarewave as a lot of sinewaves at multiple of main frequency (harmonics)
He has a sine at "desired frequency", but also, at harmonics. That is not the only thing "wrong" with this setup, but, yeah, if there is nothing around harmonics, this is, I can not say fine, but, will do somethibg...
Would have liked to see more about covert radio transmissions!
Wouldn't it be really good if this guy took his amateur radio exam. Got a licence & experienced what he's trying to explain. Then he could use an Adalm Pluto or a Lime SDR as they can transmit & receive many forms of modulation. We can hear he "like" it as he keeps saying "like". Like, he could easily pass the radio exam because he's a clever chap.
This video has a very low signal to noise ratio. It seems the technical content in this video could have been presented in 1/3rd the time minus the irrelevant material. You wasted a lot of time saying you do not have time!