#+TITLE: Daily Journal
#+STARTUP: showeverything
#+DESCRIPTION: My daily journal entry
#+AUTHOR: Preston Pan
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* 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.