Frank Dziurda/K7SFN                                             United States of America Amateur Radio Station K7SFN


 K7SFN Home Brewing

Here, I have made an effort to present some of the projects that I built for myself.

Signalink Modification:


2KW Antenna Tuner:

 2K Linear:


 Station Antennas:



 Ultrasonic Power-line Noise Detector



135MHZ Portable Beam

 A Simple Blue Tooth Interface for my Transceiver


 160M / 80M Receiving Loop Antenna System

 Amritron AL-80  
New at Fox Delta
Market Resources

(c) Frank Dziurda/K7SFN