A model of a practical Ruthroff 1:4 balun
- The 1:4 balun is of particular interest because it underlies many other configurations, and understanding it helps towards understanding the other Ruthroff balun configurations.
The FD4 (FD3) Windom Antennapop
- The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end
QSL Card Albums and Organizers
- Cheap qsl card holders, albums and organizers. Fast delivery also has a number of other archival safe products through archivesafe.com and qsl card paper for printing your own qsl cards.
ASCII to ADIFF
- This program will convert comma delimited ASCII files to ADIF format for import into a logging program that supports ADIF import. The program is intended to be used with comma separated text files produced with other logging programs or with spread sheet programs, such as Excel.