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Audio Spectrum Analyzer

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

21



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


Ferrite-shop

Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice

Kits and Components

Amateur radio kits by Kanga US

Pcs Electronics

Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters