Tag Archives :ANT

Why is your signal report of 50W radio not as good as the one just 5W radio? That's because in addition to the environmental loss, the power of the radio has a lot of loss in the antenna system. So many hams like to install them antenna outdoor to reduce antenna system loss. But what do you need to know when installing an outdoor antenna?  ...

what are electromagnetic waves? how does the antenna send these electromagnetic waves out? how does the antenna realize the directional emission of electromagnetic waves? how do you measure the coverage and gain of the antenna's main lobe? After reading the article, you will understand.  ...

wireless communication also transmits information through antennas, except that it transmits electromagnetic waves that carry useful information. The figure below is an example of mutual communication between a mobile phone and a base station.  ...

For radio amateurs, they use Yagi Antenna to extend racio communication range. Nowdays, many amateurs use Yagi antenna to receive the signals from the satellite.  ...

dPMR is a different protocol than DMR. So Ailunce HD1 is not able to listen dPMR446.  ...

An easy-to-use, no complicated adjustment, novice antenna. If you don’t have a roof to set up a Ⅴ antenna and inverted V antenna. But you have a balcony, come on to try this 10 band shortwave balcony antenna.  ...

antenna SWR, antenna gain, and Directionality are reference factors for judging the quality of an antenna.  ...

GP antennas is short for GroundPlaneAntenna. These antennas are with a ground plane. Their elements are usually mounted by vertical ground, so they are also called vertical GP antennas. The antennas has a low emission inclination, and its coverage is similar to a circle with the radius of the emission point, so it is indispensable as a simple and effective DX weapon. The disadvantage is that it is a little noisy.  ...

Dipole antenna is the earliest, most widely, and the most commonly used simplest antenna in SW. But do you know which is dipole antenna in our commonly used antennas? How to work?  ...

An easy-to-use, no complicated adjustment, novice antenna 10 Band 3.5-54Mhz Shortwave Balcony Antenna   ...