Using FPGA in radios

[@Mb71396]

Thanks this was very insightful, I'm an early stage RF engineer and have been working on analogue RF, I have built a DDS using micro's for one of my projects and it works wonderfully, the learning curve for FPGA seems daunting but if the future looks like "hardware" defined "digital" RF I may start picking this up.

[@adaptivedesign8795]

Hey There, I'm happy so hear there some enthusiasm still left in the world! Keep up the good work! I'm glad you liked the video.

[@naingaunglwin833]

nice explanation, sir. thank you for your video.

[@adaptivedesign8795]

You're welcome!

[@samjef8131]

perfect. thanks

[@adaptivedesign8795]

You're welcome!

[@alexdesoze]

Very good video helped a lot;)

[@adaptivedesign8795]

I'm glad you like it!

[@mustafaberkaysuer2964]

thank you

[@adaptivedesign8795]

you're welcome, I'm glad you liked it!

[@andrewandrosow4797]

Hello! I thought about full digital radios - there must be an excellent ADC: to avoid intermodulation distortion and noise.Maybe down-sampling helps to avoid extremely expensive 16bit ADC 60MSPS. My history about program logic was sad. I know the C language, microcontrollers , analog RF electronics. Several years ago I tried to write some software for FPGA. It was a simple serial interface for external ADC and DAC and a simple bass filter. It takes several days (I had done it) - but I was there so exhausted that I had a sleepless night... As a result I sold my FPGA Altera developer board.

[@adaptivedesign8795]

Andrew, I think you are made from the right material, I had many of those ups/downs. For audio applications FPGAs are overkill but for high sample rates and more complicated stuff are working like a charm. I hope you get back to it someday. Take it Easy!

[@paulh0029]

FPGA are necessary when you want to implement direct sampling SDR's (as a hobbyist) there are several examples on github which are quite successful. But as amateur radio designer you need to learn a complete new skillset. Also making the design cost effective is not so easy. A lot of cheap ADC chips are older and difficult to obtain. I have some AD9963 which are dual channel 100 MSPS and I was searching for an cost effective FPGA that can connect to USB or PCIe but most chips are expensive and designing a BGA pcb is also a challenge, or use a dev board but those mostly don't have enough IO's to connect the AD converter or are from a signal integrity point of view poor. So maybe I take an existing SDR board (like radioberry) and adapt it.Thanks for the video interesting discussion.

[@adaptivedesign8795]

Hi Paul, your points are valid, buy hey someone has to do it. Where some people see barriers others are seeing new opportunities and challenges. Thanks for the great comment.!

[@bob_mosavo]

Thanks 👍

[@adaptivedesign8795]

I'm glad you liked it!