Propagation measurements at the lower VHF band are carried out by using an electrically small antenna to assess the possibility of achieving a miniaturized, mobile system for near-ground communication ...

The model COM201B is a vertically polarized, omnidirectional antenna specifically designed for quick deployment and ease of operation. A unique tripod leg structure allows the antenna to be mounted ...

Some of the antennas weren’t bad on the UHF band. That makes sense because the antenna is physically larger but at VHF the size didn’t seem a big difference. He even showed up a little real ...

One of the main challenges is the limited range of VHF radio, which depends on the height of the antenna, the power output, and the curvature of the earth. VHF radio usually has a range of about ...

To be functional, generally speaking a basic station of satellite reception requires basic material : a simple VHF antenna erected in an open space (not to close to buildings), a receiver tuned on the ...

Application is found on the log-periodic dipole antenna selected for the low-frequency instrument of the SKA (Square Kilometer Array), and general guidelines are described for other designs. An ...

The antenna should also be fitted in accordance with the manufacturer's instructions, to ensure the installation is safe for the user. On yachts the VHF antenna will usually be positioned at the top ...

SwRI's AF-369 VHF/UHF Terrestrial Direction-Finding Antenna provides accurate direction finding of radio frequency transmissions from 20 MHz to 3 GHz. It was recognized by R&D Magazine as one of ...

Antenna gain is a better measure of performance. It shows how well an antenna captures UHF and VHF signals. Distance matters, but gain and design are more important for getting channels.