![]() ![]() ![]() The change was made to stop this practice." This change was added because the earlier rules had not contemplated anyone using an extended ground plane to extend the range. "In an Order adopted on Novem(FCC 74-1221), .Section 15.113 (now 15.219) was modified to include the length of the ground lead in addition to the length of the antenna and connecting lead in the 10 feet maximum. Within his presentation Reed provided the following bit of info: The previous 'history' post revolved around a letter from former FFC Chief Engineer John Reed who had provided a complete history of the Part 15 rules we broadcast under, beginning at it's inception in 1936, then all the way up to the present day. But this time I set out to do some research of my own. In a previous post: history of Part 15 was a compilation of research by others with a specific focus on 15.219. So consider the following long-overdue posting as the prelude to a much more fascinating story, which will be featured in my next post soon to come.īack in January I embarked on an exploratory tour, and wound up on a wild goose chase down the halls of the FCC. I'll tell you what, all I had been looking for was information on some specific (though unspecified), vintage, manufactured part 15 transmitters What I found was something never expected. I wrote the following in March 2017 and then came back to it and tweaked it a little sometime in May, and it's just been sitting in my draft folder since. At least it's got some good historic information. So, after some debate and hesitation, I've decided what the hell, go ahead and post this mess. ![]() ![]() but I couldn't bring myself to delete it and start over. I had kind of written it as I went along over the course of several months, and it's just a total mess. mainly because I'm finding it rather difficult to edit! It's soooo long, and awkward. There were a lot of loops and flips during the course, which are conveyed below, and though you may not have the patience to endure it, I chose to leave the post as it is. If not, then follow me now and I'll show you the way I found it. Well, if you've been following my progress in the forums (particularly at ) beginning in January of last year and thereafter, then you pretty much already know. It concerns the rise of 15.219 intentional radiation activity which quite rapidly escalated to becoming the Part 15AM broadcasting as we all know it today. For a better part of that year I'd been in the middle of research which eventually uncovered an absolutely fascinating story about Part 15 which apparently few are aware of - I never heard this story discussed or even mentioned in my 15+ years of being in the hobby. The following post has been sitting in my draft folder since May 2017. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2023
Categories |