transponders – This Week in Amateur Radio https://twiar.net North America's Premiere Amateur Radio News Magazine Sun, 15 Mar 2026 06:53:52 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://twiar.net/wp-content/uploads/2020/05/cropped-twiarlogo512px-32x32.jpg transponders – This Week in Amateur Radio https://twiar.net 32 32 Ham Radio Enthusiasts Land U.S. Airlines With $8 Million Bill to Fix Faulty Equipment On Boeing 787s https://twiar.net/2026/03/15/ham-radio-enthusiasts-land-u-s-airlines-with-8-million-bill-to-fix-faulty-equipment-on-boeing-787s/ Sun, 15 Mar 2026 06:53:50 +0000 https://twiar.net/?p=40593 Ham radio enthusiasts could be partly responsible for landing U.S. airlines with an $8 million...]]> via Hackaday: AMSAT-OSCAR 7: the Ham Satellite That Refused to Die https://twiar.net/2025/03/31/via-hackaday-amsat-oscar-7-the-ham-satellite-that-refused-to-die/ Mon, 31 Mar 2025 05:11:00 +0000 https://twiar.net/?p=29522 When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan...]]> via Amateur Radio Daily: Recently Launched ASRTU-1 CubeSat FM Transponder Active https://twiar.net/2024/11/19/via-amateur-radio-daily-recently-launched-asrtu-1-cubesat-fm-transponder-active/ Tue, 19 Nov 2024 21:23:36 +0000 https://twiar.net/?p=25740 ASRTU-1 is a 12U CubeSat designed through a collaboration between Chinese and Russian students from...]]> via Hackaday: You Can Get A Precision Instrument-Guided Landing Even In Antarctica https://twiar.net/2024/09/03/via-hackaday-you-can-get-a-precision-instrument-guided-landing-even-in-antarctica/ Wed, 04 Sep 2024 02:46:17 +0000 https://twiar.net/?p=22874 Traditional airports spend big money to install instrument landing systems (ILS) to guide planes in...]]> via HACKADAY: DME with a Twist of LimeSDR https://twiar.net/2024/07/23/via-hackaday-dme-with-a-twist-of-limesdr/ Tue, 23 Jul 2024 23:32:21 +0000 https://twiar.net/?p=22116 Navigating aircraft today isn’t like the old days. No more arrows painted on a barn...]]> Proposal for a Geostationary Microwave Amateur Radio Payload https://twiar.net/2024/01/29/proposal-for-a-geostationary-microwave-amateur-radio-payload/ https://twiar.net/2024/01/29/proposal-for-a-geostationary-microwave-amateur-radio-payload/#comments Mon, 29 Jan 2024 05:40:23 +0000 https://twiar.net/?p=19456 The aim of this paper is to discuss the mission concepts and broad technical requirements...]]> https://twiar.net/2024/01/29/proposal-for-a-geostationary-microwave-amateur-radio-payload/feed/ 1 Via HACKADAY: Just How Do Aircraft Transponders Work Anyway? https://twiar.net/2020/06/23/via-hackaday-just-how-do-aircraft-transponders-work-anyway/ Tue, 23 Jun 2020 23:58:50 +0000 http://twiar.net/?p=421 Most of us will have a hazy idea of how radar works to detect aircraft...]]>