Building the Ground Plane Disk
Building the 9:1 End Fed Random Wire antenna with Common Mode Choke
Efficiency testing our 56:1 300w SSB and 150w CW/Data QTH EFHW transformer
New 100w EFHW QTH transformer in final testing
Tuning a Dipole or EFHW antenna!!!, and other ramblings.
Building the EFHW with Common Mode Choke
Building the BCI Filter
Two new YouTube videos
Broadcast Interferance Filters
A note on End Feed Half Wave broad band transformer efficiency
Dipole facts
SWR sweep of different EFHW 49:1 transformers
EFHW with built in Common Mode Choke
Another February SOTA G/SE010 40m activation
Review of common mode choke Fair-Rite Mixes 31 and 75
February SOTA G/SE009 Chanctonbury 20 meter activation
An inexpensive and effective Common Mode Choke for Long Wave listening.
Our Ultra Portable EFHW antenna makes a breif YouTube appearence.
Short Wave listening