Taking a look at an SDR (Software Defined Radio)

[@finderskeepers5343]

Simple explanation well presented. Been wanting to give SDR a try. I have a extra Samsung tablet I could use for this. Thanks!

[@GravityRadio]

Fun little devices

[@fotografm]

Great video ! Raspberry Pi's are not only "for kids" ;-)

[@GravityRadio]

That's true!- ha

[@ronwade2206]

I want one!

[@rodo19724]

Hi !! Greetings from Argentina !!!!!!! How can I use two Baofeng BF-999 and two arduinos to transmit and receive data over-the-air ?? Thanks !!!!!

[@GravityRadio]

You can do something similar to what the rattle gram app will do on a phone, which is to do it in an analog fashion, where the sound is encoded and decoding on each end. Take a look at this app and maybe you can draw some inspiration from that for your Arduino. apps.apple.com/us/app/rattlegram/id1664526096

[@rodo19724]

@@GravityRadio Yes, I know rattlegram, but it is not for arduino, i mean two handys and two arduinos, no smartphones

[@GravityRadio]

Was using Rattlegram as an example. You could convert the data to audible analog like a modem does, transmitting over the air then converting the audio back to data. Modulate / demodulate

[@rodo19724]

@@GravityRadio Finally !!!!!!! I was waiting that answer !! So, I must buy two MT8870 right ? Data will be hexadecimal values (0 to F) and then decode in the other module, Am I right ?

[@kchedville]

Interesting -- do you have a link to get the Cable you have hooked to the tablet??

[@GravityRadio]

www.amazon.com/Baofeng-Programming-BF-F8HP-Handheld-transceiver/dp/B08H5DS4Y3/ref=mp_s_a_1_3?crid=1J5O71RB5TEX7&dib=eyJ2IjoiMSJ9.z17L6XfmMY6YuPZAbRIuEVf4vL2SX4oK0s-roCBdoM5wnD3o8l2rGfVcV5b89GphqlP4RAeFNFruELyX3feAkUBAQHr3ClBqVOcBpTDrFHAhySjHUSasxITKo8hbkpIElIo5wRK0bqwefrlFLt7eNiGY_rjPeg3oWu1zBFeBF60T2PJxHeNZLggoep_ycNzbglM8HMUsNUphE_R6b7vQLg.7BkAs20RAullty4aM3JAQi6TpJgaX6b_doP_r9qhjGA&dib_tag=se&keywords=baofeng+programming+cable&qid=1713482549&sprefix=baofeng+pro%2Caps%2C118&sr=8-3