If you don't have a SDR or spectrum analyzer to check signals above 6GHZ, an affordable option is to use a downconverter (not suitable for precise measurement, but good enough for basic checks) Here I'm using HydraSDR RFOne to check a X band (10 GHZ) signal.

Fun fact: bladeRF 2.0 xA9 has the biggest FPGA size of any USB SDR (and practically any SDR below $8k) with 301k logic elements! This lets you implement your protocol in HDL. For comparison: SDRs in this class have < 100k LEs. The next contender is USRP B205mini with 150k LEs.

Personal observation: The most popular SDR used in research papers I've read on Arxiv is USRP B210! Other USRP models (B200, N series and X-series) rank next.

What is F# used for these days? Last time I used it was on 2010, to write a parser and C code generator. Never used it since. (and when I left the company, they rewrote it in C++)

This is how I treat my LLMs

Did you know that "i" in USRP B200mini-i and B205mini-i stands for "industrial"? They use the industrial variant of the Xilinx FPGA. Even their enclosure kits are different, which increases the max operating temperature to 75C.

Why I don’t post much about infosec: because there’s already a huge amount of content out there. But RF, SDR, and hardware security? Fewer voices, fewer resources, and much more to uncover. That’s where I want to contribute.

How I feel being back on the German Autobahn after a week of road trip in Europe

Some people pack sunscreen. I pack SDR, antenna, multimeter, and soldering iron. Here's my small, portable "just in case" vacation kit.