

Audio Spectrum Analyzer

- This program started as a simple fft program running under dos a long time ago, but it is now a specialized audio analyzer
post 25 Mar 2025
QRSS Amateur VLF operating Links →
ICBeacon LF CW/QRSS beacon
This simple beacon is born after discussing with Giulio, ik2ded, on some ideas for LF
Lopora QRSS beacon reception program
most of the activities can be found in a band of only 200 hz, namely 10,140.000 khz +/- 100 hz in the 30 meters amateur band. this band is only just as wide as a very narrow cw filt
QRSS Keyer
This is a simple QRSS callsign keyer based on an Atmega AVR programmed
21
This simple beacon is born after discussing with Giulio, ik2ded, on some ideas for LF
most of the activities can be found in a band of only 200 hz, namely 10,140.000 khz +/- 100 hz in the 30 meters amateur band. this band is only just as wide as a very narrow cw filt
This is a simple QRSS callsign keyer based on an Atmega AVR programmed