Category Archives: Electromagnetics
Club Presentation 7-11-2023–The Mighty Dipole Antenna
Wes Cardone (N8QM) will be presenting about the dipole antenna in tonight’s meeting. See the handout below for downloading.
Utility Pole Interference
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The Chelsea repeater (WD8IEL), since this trustee assumed its maintenance responsibilities in 2022, has demonstrated an attribute of performance suggesting desensitization. That is, the background RF noise has a magnitude greater than the receiver’s sensitivity. The effect is that the repeater can be heard at a much greater distance than it can be worked. BACKGROUND ELECTRO-MAGNETIC FIELD QUANTIFIED The collective… Read more »
5G… Not Again!
Patrons of the Chelsea Amateur Radio Club website blog may recall presentations and blog posts on 5G and your health. Recall that the premise of these presentations was that as an amateur radio operator, you already have all the tools and knowledge that you need to adjudicate for yourself the nature of 5G technology and its potential effect on the… Read more »
Tricky FCC Pool Questions
Some of the FCC pool questions may lure you into making a mistake if you don’t pay attention. A good example of this is question E9C01 from the Extra Class section. You might be thinking that 180 degrees is the same as 0 degrees. This is absolutely true for anything that the Smith Chart will solve for you. This may… Read more »
Phased Verticals for Directed Transmission
I think that we are all aware of the semi-tractor trailer rigs we see on the highways with dual CB antennas. Obviously, they are trying to direct their propagation forward and to their rear. More than likely, these are simply spliced into a CB transceiver (to their demise) without regard for any specific configuration of transmission or feedline. We found… Read more »
What’s All This 5G Stuff, Anyhow?
Please click on the button below to read a blog post by Wes Cardone (N8QM) presenting thoughts on 5G. Note that no conclusions are presented. The post was written with the amateur radio operator in mind and the knowledge that he or she is expected to process by the FCC. Reach your own conclusions. While the rest of the world… Read more »