DeVry University Online Student Branch Presents “Introduction to IEEE Organization and DeVry University Online Student Branch” By Student Branch Executive members Thursday, October 3rd, 2024, (8:00pm EST/7:00pm CST) To Join: Click the following link: https://devry.engageli.com/devry/current/gey-qve-sl8/? IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Being a student member of IEEE and Getting involved with your DeVry Online IEEE Student Branch can change your life. Networking with others in the student branch is a great way to form relationships that can be of great technical benefit and may help you with a future career. Learn together through fun projects, discussions, and by participating in events. You'll also hear from DeVry Online IEEE executive members about what getting involved means. Join us to learn more what your IEEE student branch is, and what it can do for you. • Agenda: • IEEE Organization • Student and professional IEEE members share experience • DeVry University Online IEEE Student Branch • Q & A Virtual: https://events.vtools.ieee.org/m/435652

Studying the D-Layer of the Ionosphere is difficult due to the low plasma density that tends to occur at the bottom of the Ionosphere, necessitating relatively low frequency signals in order to probe the overhead conditions. Ionosondes, the sensors typically used to probe the Ionosphere, mostly bottom out at 1MHz and, due to the need to operate across a wide bandwidth, their antennas are very insensitive at those frequencies. My goal is to build a passive collection system utilizing local MF stations (i.e. WDAO at 1.21MHz) as transmitters to collect long-term data on ionospheric conditions in the D- and bottom of the E-layer. The problem is twofold: 1) the reflection path is expected to be HIGHLY lossy so there will be a strong direct path signal and a weak reflection path signal of interest 2) the extremely low frequency of the signals necessary make miniaturizing the antenna system difficult, especially if (as expected) we will need to operate across multiple stations and frequencies over the course of the day. My current plan is to set up an array of ~5x crossed wire-wrapped ferrite loop antennas as elements in conjunction with a variable capacitor to tune. Co-sponsored by: Wright-Patt Multi-Intelligence Development Consortium (WPMDC), The DOD & DOE Communities Speaker(s): Dan Agenda: Studying the D-Layer of the Ionosphere is difficult due to the low plasma density that tends to occur at the bottom of the Ionosphere, necessitating relatively low frequency signals in order to probe the overhead conditions. Ionosondes, the sensors typically used to probe the Ionosphere, mostly bottom out at 1MHz and, due to the need to operate across a wide bandwidth, their antennas are very insensitive at those frequencies. My goal is to build a passive collection system utilizing local MF stations (i.e. WDAO at 1.21MHz) as transmitters to collect long-term data on ionospheric conditions in the D- and bottom of the E-layer. The problem is twofold: 1) the reflection path is expected to be HIGHLY lossy so there will be a strong direct path signal and a weak reflection path signal of interest 2) the extremely low frequency of the signals necessary make miniaturizing the antenna system difficult, especially if (as expected) we will need to operate across multiple stations and frequencies over the course of the day. My current plan is to set up an array of ~5x crossed wire-wrapped ferrite loop antennas as elements in conjunction with a variable capacitor to tune. Virtual: https://events.vtools.ieee.org/m/437436