3 ms·
A B205. Mostly playing around with high spectral efficiency digital modulation techniques like PSK/QAM and OFDM using GNU Radio. Trying to shovel as much data
by ohazi 5y ago
A B205.
Mostly playing around with high spectral efficiency digital modulation techniques like PSK/QAM and OFDM using GNU Radio. Trying to shovel as much data as I can between two links with as little power as possible. I'd like to experiment with below-the-noise-floor communication, but haven't gotten there yet.
It's sort of silly, because you can do all of this in simulation, but it's more fun with real hardware. Eventually I'd like to be able to build a (solar?) drone with a radio system resembling a cell tower and do ground-drone-ground relay experiments, but I'm extremely not there yet.
I also wanted something that could transmit after I got a ham radio license (out of boredom during the pandemic, shortly after they started doing testing online), but haven't really used it that much, as I don't really have a good antenna set up. For data experiments, a wire or a PCB trace works well enough.
I also do a lot of embedded Wi-Fi / Bluetooth stuff at work and would like to use this for packet captures, but haven't needed to yet. It's completely overkill for something like that though.
- mNovak 5y agoWait, they're doing the exams online now? My laziness to go to a testing center has been holding me back this whole time
- ohazi 5y agoThat's what I said... :-) I used hamstudy.org and took a test administered by GLAARG over Zoom. https://glaarg.org/ https://glaarg.org/
- threeio 5y agoVery much this... two good combos, although the laurel VEC is also fantastic. Get your ticket, its a fantastic experimenters hobby... just ignore the stodgy old man part of it
- ytjohn 5y agoAs mentioned, GLAARG and others does them online. However I'd like to throw out that amateur exams are held all over the place, quite often. These are typically friendly events and is a good way to meet people that have been in the hobby for a long time. Typically, your local VE team is part of a radio club that can tell get you lots of good getting started tips, especially if it pertains to local activity. https://www.laurelvec.com/?pg=exams https://www.laurelvec.com/?pg=exams (All Laurel VE sessions are free and processed next business days) http://www.arrl.org/find-an-amateur-radio-license-exam-session http://www.arrl.org/find-an-amateur-radio-license-exam-sessi...
- mycall 5y agoYou could take a look at Intel's Falcon 8 drones [0]. It might get you thinking differently, and the things they pull off a the Olympics is amazing. [0] https://www.intel.com/content/www/us/en/technology-innovation/aerial-technology-overview.html https://www.intel.com/content/www/us/en/technology-innovatio...