For Electronics Engineering design services see: P.H.U. Kosmopol

Email me: kosma@kosma.pl
Call me: +48.785870777
Telegram: @kosmamoczek

…or, if you are a ham radio nerd:

SP0POS (and occassionally SP7HN)
2m: 145.500 MHz
2m: 145.325 MHz CTCSS TX/RX 250.3 Hz (SP6HACK frequency)
80m: around 3722 kHz >:)

…or, if you want a really obscure communication channel that I read twice a year:

Matrix: @kosma:kosma.pl
IRC: kosma@Libera