It was about two years ago that the EZNEC Antenna Modeling Software was made free. Wes Cardone (N8QM) purchased this software several years ago (before it was made free) and has found it extremely capable and says that it should not be considered as limited to those with extreme electromagnetics knowledge. This stuff is for the average amateur radio operator…. Read more »
Please let us know at the Chelsea Amateur Radio Club if learning to use the free antenna modeling software EZNEC would be of interest to you. What might be a nice course of action in learning EZNEC is a tutorial using EZNEC’s own “Test Drive” tutorial. This is a tutorial provided by the EZNEC antenna modeling software which starts you… Read more »
Chelsea Amateur Radio Club member Wesley Cardone (N8QM) has devised an antenna topology he is calling the “Rail-Pole Antenna.” The reader may already be aware that Wes has consistently maintained that all antennas are merely dipole antennas in disguise and this one is no exception. Wes is willing to give a series of presentations to the Chelsea Amateur Radio Club… Read more »
Chelsea Amateur Radio Club member and trustee of the Chelsea Repeater is writing an article to publish with CQ magazine on programming announcements for repeaters using the Arcom RC-210 controller. If you have an interest in this, please contact Wes at N8QM@arrl.net.
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 »
In April 1974, two people were killed in a house fire in Hampton Bays, New York. Fire officials determined that the fire was caused by a faulty aluminum wire connection at an outlet. According to the Consumer Product Safety Commission (CPSC), “Homes wired with aluminum wire manufactured before 1972 [‘old technology’ aluminum wire] are 55 times more likely to have… Read more »
March 14, 2023 Club Meeting at 7 PM by Zoom For the March meeting of the Chelsea Amateur Radio Club (March 14th, 2023), Wesley Cardone will be giving a presentation on paralleling of portable generators. The presentation will examine the electrical theory enabling attendees to understand many other aspects of what happens when you hook to of these things together…. Read more »
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 »
In many science writings, it is necessary to reference temperature in the Kelvin scale. But did you know that there are more ways to go wrong in how you pen your temperature than you have fingers to count? One of our members put together a document describing some of these nuances that you may be interested in. Degrees Kelvin or… Read more »
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 »