From d747e5d390840f19184f5e1ca41e6cdb034a0451 Mon Sep 17 00:00:00 2001 From: Preston Pan Date: Tue, 12 Aug 2025 17:06:52 -0700 Subject: journal and update --- journal/20250703.org | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 journal/20250703.org (limited to 'journal/20250703.org') diff --git a/journal/20250703.org b/journal/20250703.org new file mode 100644 index 0000000..fce34c7 --- /dev/null +++ b/journal/20250703.org @@ -0,0 +1,23 @@ +#+TITLE: Daily Journal +#+STARTUP: showeverything +#+DESCRIPTION: My daily journal entry +#+AUTHOR: Preston Pan +#+HTML_HEAD: +#+html_head: +#+html_head: +#+options: broken-links:t +* Thursday, 03 July 2025 +** 20:05 +I am currently studying more radio mathematics in order to fully understand +how certain radio modes work, and secondly how antennas work on a deeper level. +I've gained some insight into antennas already by analyzing the radiation patterns +of dipole antennas and loop antennas, particularly with the use of retarded potentials +and certain simplifying assumptions regarding the strength of far-field radiation and the +size of the dipole as well as the transmitting frequency. + +Additionally, I am studying many filter circuits that are used in superheterodyne circuits, +and I am studying the structure of different transmitters such as AM, QAM, SSB, and FM +transmitters. I hope to gain a fully functional understanding of these transmitters as well +as an understanding of the different propagation methods (skywave, ground wave, moon bounce, scattering, etc...). +Of course I already have an operational understanding of propagation, but I would like to understand +these all from a mathematical perspective, and understand polarization with regards to scattering. -- cgit v1.3