jj1bdx

Ubuntu conversion from Desktop to Server

Source: https://www.technomancer.com/archives/789

# Do this as a root
# Install Ubuntu Server, after stopping unattended upgrades
systemctl disable unattended-upgrades
systemctl set-default multi-user.target
apt update && apt -y upgrade 

jj1bdx

Installing TeXLive on Ubuntu

For Ubuntu 22.04.4 LTS and TeXLive 2024

Don't

• Do not use default given packages. They are too old and obsolete.

Remove installed packages by apt first

jj1bdx

ATECC608A I2C Notes

Here be dragons

WARNING: AS THE DEVICE CAN BE CONFIGURED ONLY ONCE, PLEASE BE WARNED THAT YOU MIGHT EASILY BRICK THE CHIP! USE AT YOUR OWN RISK!

Circuit

Please make sure to use proper circuit for ATECC608A with pullups and decoupling capacitors when hooked to a MCU. A Raspberry Pi might also work without external components just using internal pullups.

jj1bdx

VOLK v3.1.0 volk_32fc_s32f_atan2_32f() anomaly on input element 0+0j

VOLK v3.1.0 volk_32fc_s32f_atan2_32f() returns -NaN when input has a 0+0j element for the avx2 and avx2_fma kernels.

Note: j denotes an imaginary number, where j^2 = -1.

Summary

VOLK v3.1.0 volk_32fc_s32f_atan2_32f() returns -nan for the following kernels:

jj1bdx

defaults write -g NSScrollViewRubberbanding -int 0
defaults write -g NSAutomaticWindowAnimationsEnabled -bool false
defaults write -g NSScrollAnimationEnabled -bool false
defaults write -g NSWindowResizeTime -float 0.001
defaults write -g QLPanelAnimationDuration -float 0
defaults write -g NSScrollViewRubberbanding -bool false
defaults write -g NSDocumentRevisionsWindowTransformAnimation -bool false
defaults write -g NSToolbarFullScreenAnimationDuration -float 0
defaults write -g NSBrowserColumnAnimationSpeedMultiplier -float 0
defaults write com.apple.dock autohide-time-modifier -float 0

jj1bdx

# Source:
# https://apple.stackexchange.com/a/63477/91991
# Posted by Lri <https://apple.stackexchange.com/users/3936/lri>
# Licensed: CC-BY-SA 3.0

# opening and closing windows and popovers
defaults write -g NSAutomaticWindowAnimationsEnabled -bool false

# smooth scrolling
defaults write -g NSScrollAnimationEnabled -bool false

jj1bdx

#!/bin/sh
# CMake local script for building sdr++ <git@github.com:AlexandreRouma/SDRPlusPlus.git> on macOS
cmake .. \
  -DOPT_BUILD_AUDIO_SINK=OFF \
  -DOPT_BUILD_BLADERF_SOURCE=OFF \
  -DOPT_BUILD_HACKRF_SOURCE=OFF \
  -DOPT_BUILD_HERMES_SOURCE=OFF \
  -DOPT_BUILD_M17_DECODER=OFF \
  -DOPT_BUILD_METEOR_DEMODULATOR=OFF \
  -DOPT_BUILD_NEW_PORTAUDIO_SINK=ON \

jj1bdx

fldigi/flarq/flamp usage / fldigi/flarq/flamp の使い方説明

by Kenji Rikitake, JJ1BDX

Last update: 23-SEP-2022 / 2022年9月23日

Copyright (c) 2022 by Kenji Rikitake. The contents (words and figures) of this document are licensed under a Creative Commons Attribution 4.0 International license (CC-BY 4.0).

This is a bilingual document in English and in Japanese.

jj1bdx

#EXTM3U

#PLAYLIST:CBC Radio Streams

#EXTINF:-1,CBC Music (Atlantic)
	http://cbcmp3.ic.llnwd.net/stream/cbcmp3_cbc_r2_hfx

#EXTINF:-1,CBC Music (Central)
	http://cbcmp3.ic.llnwd.net/stream/cbcmp3_cbc_r2_wpg

jj1bdx

#EXTM3U

#PLAYLIST:CBC Radio Streams

#EXTINF:-1,CBC Music (Atlantic)
	https://cbcliveradio2-lh.akamaihd.net/i/CBCR2_HFX@382379/master.m3u8

#EXTINF:-1,CBC Music (Central)
	https://cbcliveradio2-lh.akamaihd.net/i/CBCR2_WPG@385274/master.m3u8