Radar's ability to steer the beam without moving always seems almost magical to me.
Fun fact: Radars control/ signal processing are now software.
Some caution is in order when playing with these things, remember, microwaves aren't just for radar they're for cooking too (one of the original microwave oven was called "radarrange")
I implemented/updated code that analyzed a radars output and made sure that the side lobes weren't cooking people if they happened to be standing around the radar (or in the control house which was shielded). Even if you aren't in the path of the radar (eg its pointed up) there is some rf being spilled down by side lobes. work radar was significantly larger than this one, but on this one you can stand right in its beam path.
"Fun fact: Radars control/ signal processing are now software."
Well some of it. I'd call base-band processing in FPGA as hardware, as RADAR bandwidths are generally still too high to allow real-time processing in software; i.e a true software defined radar on a CPU. The software is always playing catch-up as bandwidths and array density increase.
Even 2G wireless comms still are not fully software; it take an FPGA implementation due to latency. Never mind 5G comms.
I suppose it's a point of contention, but I don't consider HDL to be software, as it's easier to go from (an HDL synthesized to) FPGA to an ASIC than HDL to software on a general purpose CPU.
That transition to software is what makes this so approachable. Also exciting that cars are starting have radar where volume will bring down price to something accessible to people outside of aerospace.
What happens if you get in the path of a microwave beam at this kind of power? I'd imagine you notice your skin getting hot. What's the biggest risk? (I'm not saying I'm OK having my eyeballs heated, I'm just curious about what the biggest dangers are.)
The microwave oven was actually invented by a guy who walked in front of a powerful radar with a candy bar in his pocket, and had a eureka moment when it melted.
It seems that they figured out modern microwave cookery very quickly. The first thing they cooked on purpose was popcorn, and the second was an egg, which exploded.
Radar's ability to steer the beam without moving always seems almost magical to me.
Fun fact: Radars control/ signal processing are now software.
Some caution is in order when playing with these things, remember, microwaves aren't just for radar they're for cooking too (one of the original microwave oven was called "radarrange")
https://en.wikipedia.org/wiki/Percy_Spencer
I implemented/updated code that analyzed a radars output and made sure that the side lobes weren't cooking people if they happened to be standing around the radar (or in the control house which was shielded). Even if you aren't in the path of the radar (eg its pointed up) there is some rf being spilled down by side lobes. work radar was significantly larger than this one, but on this one you can stand right in its beam path.