I was playing around with new and smaller HackRF PortaPack H4M
In a summary blog, you can find what's new with H4M, how to flash it, copy necessary data, and a couple of use-cases.
https://www.mobile-hacker.com/2025/05/19/hackrf-portapack-h4m-with-mayhem-firmware-a-powerful-handheld-sdr-toolkit/
Post #2528
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