The March Tech Night (March 13, 2018) will have an introduction to antenna modeling by me, Scott, NE1RD. I’ll begin by going through some antenna theory and then proceed on to the NEC-2 software and its popular front ends EZNEC and CocoaNEC. (Both the evaluation/demo version of EZNEC, and the Macintosh-based CocoaNEC are free.) LINUX users should consider getting Andy (KB1OIQ) Stewart’s Andy’s Ham Radio Linux suite. The main concepts you’ll learn will apply equally well to any of these programs.
Please download the antenna modeling software for your platform, and download the slides for this presentation from the Tech Night web page. The slides have a lot of detail on them, and it will be much easier to see the subtleties on your own screen.
So, bring your laptop with software and slides, and we’ll have you modeling antennas by the end of the evening. See you there!
ARRL has asked the FCC to expand HF privileges for Technician licensees to include limited phone privileges on 75, 40, and 15 meters, plus RTTY and digital mode privileges on 80, 40, 15, and 10 meters. The FCC has not yet invited public comment on the proposals, which stem from recommendations put forth by the ARRL Board of Directors’ Entry-Level License Committee, which explored various initiatives and gauged member opinions in 2016 and 2017.
It looks like the ARRL got this one right on the mark. Expanding Technician Class License privileges to include digital and SSB phone options on more of the HF bands is just what we need to make the first level Amateur Radio License more fun, a better learning experience, and a more effective bridge to upgrading to General Class privileges. Well done ARRL!
Our Portable Satellite Station antenna system uses a pair of Advanced Receiver Research Remote preamplifiers at the antennas to boost weak signals. These preamps have RF sensing and switching to protect…
PTT Router Front Panel
Our Portable Satellite Station 3.0 is coming together and has been tested thanks to help from several NARS members. Part of the project is to improve the sequencing system which manages antenna mounted preamplifiers. These improvements involved the design and construction of a simple Push To Talk (PTT) router. The article above explains the design, construction, and integration of this PTT Routing devices. It was a great homebrew addition to our Portable Satellite Station setup.
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