HAM operators communicate globally when others can’t By EMILIE NELSON In the event of a natural disaster in which most forms of electronic communication fail, one form can still be counted on to get messages to the right agencies to bring aid to those in need of assistance. Amateur radio, also known as HAM radio,…
The AH1A Saga – Pacific Expedition to Howland and Baker IslandWatch this video on YouTube An international team of radio amateurs and scientists travels by schooner to remote and barren Howland Island and is stranded for a week due to high surf. A planned 9 day visit was extended to 15 days. Howland Island is…
One of my favorite ham radio activities is making contacts on satellites. It’s really fun to know that you’re controlling something that’s receiving and sending communications from space. But communicating with satellites means carrying a big Yagi antenna around. So, I decided to use my fashion sewing skills to make a collapsible fabric Yagi antenna…
In just a few hours you can make a completely batteryless AM radio receiver with a range of around 25 miles. Built with a small assortment of components, some scrap wood, and a beverage bottle tightly wound with magnet wire, we call this project Bottle Radio. Similar to other “crystal radio” projects, the crystal in…
Mario Roessler DH5YM has made available a video showing amateur radio laser communications over a distance of 48 km CQ Loop via Laser de DK5WMA, July 2012, distance 43kmWatch this video on YouTube Another test with Laser communication. You can see the green Laser of DK5WMA Marcel and hear the demodulated telegraphy signal. The fading…