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 +++++++++++++++++++++++ journal/20250720.org | 14 ++++++++++++++ journal/20250723.org | 14 ++++++++++++++ 3 files changed, 51 insertions(+) create mode 100644 journal/20250703.org create mode 100644 journal/20250720.org create mode 100644 journal/20250723.org (limited to 'journal') 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. diff --git a/journal/20250720.org b/journal/20250720.org new file mode 100644 index 0000000..5315dda --- /dev/null +++ b/journal/20250720.org @@ -0,0 +1,14 @@ +#+TITLE: Daily Journal +#+STARTUP: showeverything +#+DESCRIPTION: My daily journal entry +#+AUTHOR: Preston Pan +#+HTML_HEAD: +#+html_head: +#+html_head: +#+options: broken-links:t +* Sunday, 20 July 2025 +** 21:21 +I'm almost done real analysis. I'm just reviewing and I'm probably going to take a look +at the chapter on the Riemann-Stieltjes integral. Then I'm going to switch over to complex analysis. +I also skipped a couple of subchapters that I have to go back to now, but that's no big deal, and I'm +going back to them now. diff --git a/journal/20250723.org b/journal/20250723.org new file mode 100644 index 0000000..7b00356 --- /dev/null +++ b/journal/20250723.org @@ -0,0 +1,14 @@ +#+TITLE: Daily Journal +#+STARTUP: showeverything +#+DESCRIPTION: My daily journal entry +#+AUTHOR: Preston Pan +#+HTML_HEAD: +#+html_head: +#+html_head: +#+options: broken-links:t +* Wednesday, 23 July 2025 +** 23:15 +I'm journaling again to say that I'm basically done real analysis now, and I'm onto +one of complex analysis, or programming. I should really do some more physical projects as well. +Hopefully I can learn some differential geometry next, as it is required in order to continue exploring +physics. -- cgit v1.3