Hamradio on Jari Hiltunenhttps://hiltsu.codeberg.page/en/tags/hamradio/Recent content in Hamradio on Jari HiltunenHugo -- gohugo.ioenTue, 15 Jul 2025 00:00:00 +0000 Passive Radar Systems for Voluntary National Defense: Leveraging Civilian Infrastructure for Enhanced Situational Awarenesshttps://hiltsu.codeberg.page/en/posts/passive-radar-systems-for-voluntary-national-defense-leveraging-civilian-infrastructure-for-enhanced/Tue, 15 Jul 2025 00:00:00 +0000https://hiltsu.codeberg.page/en/posts/passive-radar-systems-for-voluntary-national-defense-leveraging-civilian-infrastructure-for-enhanced/Idea for defence.