The antenna was named for W4JRW who invented it and holds a patent on the basic principle and uses quarter wave stubs, which act as insulators at the frequency for which they are cut. For example, the 6’11” stub (quarter wave times the velocity factor 0.8 of the feed line used) blocks RF for 28…
Tag: MultiBand
A Novice Multiband Vertical Antenna
Putting your first ham radio station together can be an expensive proposition. One way to cut costs is to keep the antenna simple. Here’s how WB1FSB shaved the price and provided four band operation. https://drive.google.com/file/d/1os8GDj9Ydcp93W6r9TxBPJXp7zqPJOGu/preview
DL2HCB Multiband Delta Loop
After a Qth change last year, I was fortunate to get permission for an outside antenna. The new antenna was built with the following considerations in mind. At least 10 – 20m coverage Open wire feed to simplify matching the various impedances Loop design, because it is less sensitive to nearby objects and it requires…
The W3DZZ Antenna
The W3DZZ antenna revisited. A multiband antenna 80 to 10 meters by using traps for 7 MHz
The ZS6BKW Multiband HF Antenna
This is the antenna for you guys who want to get on HF effectively, and haven’t too much space or cash to throw around. Actually, it’s a design from ZS6BKW (aka G0GSF), similar to the G5RV, but it actually resonates on five bands, (well 6, actually) and doesn’t rely on a tuner (ATU) to make…