Abstract: In this invited paper, the New Technology Directions Committee (NTDC) of the IEEE Antennas and Propagation Society (AP-S) presents new and emerging research directions to commemorate the ...

Then, I zoomed back out to the entire HF band. Not bad ... Want more things to do with your VNA? You can even map antenna patterns with one.

Hello, I obtain the "HF antenna is UNUSABLE" when I run the "hw tune". I have tried with 2 antenna (Iceman collection): [=] `hw tune` doesn't actively tune your antennas, [=] it's only informative. [= ...

Amid mounting concerns over the dwindling pipeline of physicians choosing heart failure as a subspecialty as the patient population explodes, prominent heart failure leaders have published a “road map ...

"The long-distance propagation path of an HF radio transmission is via refraction in the ionosphere ... Sometimes people use repeaters to a remote antenna. A large number of radio amateurs have a ...

Abstract: The bottom side of a vehicle is assessed for mounting HF-VHF antenna systems in terms of omni-directionality, efficiency and propagation loss. Accurate and numerically efficient procedure ...

Signal propagation in the ionosphere ... the need for a high-frequency (HF) mission payload with a wide range of frequencies and low noise. Designing its antenna will be difficult, however ...

The Antenna Research Group (ARG) at the University of Colorado Boulder is housed in the Department of Electrical, Computer, and Energy Engineering. ARG’s research specializes in antenna theory and ...

My own station runs at 5 Watts, since on HF ... a propagation map from my own station and publish that, but it's too early to say what's involved in making that happen. Right now I've dived into the ...