Helical antenna calculator by R.J. Edwards G4FGQ. The main reason for using a helically wound…
Become a Ham Radio Operator A Yaesu FT-2000 tranceiver. Photo by Hideki Saito on flickrAmateur radio is…
An antenna tuner, also known as a transmatch, is a device for correcting an impedance…
An antenna loading coil is an inductor placed in series with an antenna element in…
NVIS communications in the HF band Fundamentals of the propagation using near vertical incident skywave…
My name is Alexandre Grimberg, my call sign is PY1AHD. I have born in Rio…
Having Space Constraint At Your QTH To Put Up An Antenna For HF Band?.Then Try…
This is the first design of Ubuntu Ham Radio tshirt from me, Give me your…
A helical antenna is an antenna consisting of a conducting wire wound in the form…
Congratulations to Miss Diana Eng KC2UHB for her new Collapsible Fabric Yagi Antenna. Combination between…
Yagi Calculator is a Windows program (also runs well on Linux - Ubuntu 8.10 under…
SWR Meter Setup ICOM 2200H --> SWR Meter --> Slim Jim Antenna 145mhz 146mhz…
I have successfully made an antenna for my daily use using slim jim diagram for…
I'm using http://www.m0ukd.com/Calculators/Slim_Jim/index.php to design this slim jim antenna diagram. very helpful to me, maybe…
The Slim Jim is a vertically polarized omnidirectional end-fed antenna having considerable "gain" and this…
While search for something, i have found this website. i think is it good to…
WA7RAI wrote this yagi modeling program in 1990. Despite being written for MS DOS, it…
RF Toolbox is an antenna design and electronics/electrical tool package. It takes you step by…
