Projects     

 

Keyers
Voice Keyer for FT-897
Voice Keyer for Icom transceivers
Sound card <-> MIC CMOS switch with monitoring

Long and Medium Waves Related:
High-performance up-converter for reception of 0...550kHz
Large loading coil for 136kHz
Small loading coil for VLF/LF/MF
1 kW power amplifier for 136 kHz band

Antenna Related
     HF
     
Ultimate Remote-controlled ATU for Lower HF Bands
     
Semi Automatic HF Antenna Tuner Controlled by Arduino 
     
HF transmatch 1 kW
     
ATU for HF for handheld receiver AR8200
     VHF
     
DK7ZB antenna 4 x 4 elements for 144 MHz       
     
Low noise pre-amplifier for 144 MHz
     14 element Yagi DL6WU for 2m band
     
The rope antenna for 144 MHz
     
Do you know what your antenna sees? Panoramic view from the top of the mast.

Miscelaneous
Dummy load 800 watts
Rotary encoder divider (slow down tuning rate)

Software
Virtual Legacy Radio (VLR) - cat software to control FT817/857/897

 

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