2002 - 2022 i1wqrlinkradio.com
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 27 Dec 2021


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

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 80 m| 160 m| 136 khz
Bazooka
Beverage
Cb Antenna
Collinear
Cobweb
Delta Loop
Eh
End_fed antenna
EWE Antenna
Fan Dipole
Folded Dipole
G5RV
Halo
Helix
Hentenna
Hidden Antenna
Hf mobile
HexBeam
Isotron
Jpole
Loop
Log Periodic
Low Band Receiving
Moxon
Multiband
Morgain
Ocf Fed Dipole
Quad
Slot
Spiral antenna
Vertical
Vhf-Uhf-Shf
Wifi & Ghz
Windom
Wire
Yagi
Ant.Masts and mounts
Ant.Transmatch
Antenna_Analysis
Antenna Receiving
Antennas Shortwave
Antenna Switch
Balun Calculator Antenna
Contest Logging Software
Components-kit
Duplex
Dummy load
Feed Lines
Fiberglass tubing
Phased Array
Projects Homebrew
Software Antenna
Software Defined Radio
Swr Meter System of grounding
Theory Traps Tower
Sstv Software
Logging Software
Digital_Mode
HF_radio_modifications
Interface Radio
Memory_keyers
Microphone setting
PC sound Radio Interface
Pocket Pc Preaplifiers
Radio control
RF attenuator
Radio programming
Radio Transceivers
RF Filter
Spectrum_Analyzer
Tracking satellite
Voice Messages & Keyer