January 2018: Robert WR9B demonstrated “Fast Transients” and their effect on RF at the January 2018 club meeting. Using a pulse generator, spectrum analyzer, and dual time-based scope, his experiment showed that rise and fall times, even as short as nanoseconds, can interfere with RF. Many devices being sold today do not conform to FCC standards: if you are experiencing mystery QRM you will want to remember that even everyday household appliances such as light dimmers, small switching power supplies, or fluorescent lights will produce interference through high speed transients.
December 2017: Christmas POTLUCK Lunch at the Simms Municipal Building
November 2017: Digital Modes FAQ Session suggested by Maury W5UGQ — Discussions and questions about DMR (Motorola) and C4FM (Yaesu System Fusion) with a little D-Star (iCom) thrown in. Thanks to John K5IT, RC K5ORC, Ray W5RAW, Maury W5UGQ for answering our members’ questions and clarifying properties of the different systems and equipment.
October 2017: John K5IT and Arthur K5PM presented a slide show of their total solar eclipse activities — operating during totality — and taking great pictures of the eclipse with their telescope/solar projector. Unfortunately their location during totality was somewhat overcast, but they were able to get good “live” views. They both highly recommend everyone experience a total solar eclipse in person — the next one will be 2024, and totality will be closer to our location. Make plans now to be in the area of “totality” during this incredible natural event!
September 2017: Route 66 On the Air arrangements, information K5KBV/KG5NWD
August 2017: Route 66 On the Air information K5KBV
July 2017: Field Day Recap
June 2017: James AB7II gave a really interesting presentation on “Getting Started with Arduino” at the July meeting for all of us “newbies” who might not have played with one or didn’t even know what an Arduino is! John K5IT brought one to a meeting a year ago to demonstrate the Iambino shield, which is great for code practice with an iambic keyer. James gave us a good overview of Arduino, programming for your own projects, its uses for prototyping, etc. — we’re looking forward to other demonstrations of what Arduino can do!
Looking forward to James’ completion of his projects, and starting one of my own!
June 2017: Robert WR9B brought some very fascinating (and powerful) Red, Green and BLUE laser lights for “show and tell.” His descriptions and explanations ventured into the realms of electron excitement, visible light spectrum and crystal harmonics.
Thanks to both of these members for sharing their knowledge of these topics!
June 2017: Lamar Science Day Report was presented by Ben W2CYV, Melinda KG5NWD, Robert WR9B and John K5FS. We all highly encourage members to participate in the next Science Day in May 2018