Tag Archives :Antenna

The antenna is the important part of amateur radio. There are many antennas for amateur radios. today we'll learn another antennas besides original antenna.  ...

Ailunce AY04 is the High Gain Yagi 144&430 MHz Directional Antenna, and we can install it easily, but do you know how to tune it?  ...

We know that the shortest distance is straight line between two points. but it's often not simple when hams communicate with each other from around the world. Because it's not the shortest distance geographically if we connect two points directly on world map, we need to select the right direction of antenna to achieve the better communication effect. Especially for directional antennas, such as Yagi antennas. we must rely on the great circle Maps.  ...

Why does the walkie-talkie have a long external antenna, and most of the mobile phones are built-in antennas?  ...

Combiner is a words often mentioned by hams who uses multi-band radios, so what is a combiner? Why do we need to use a combiner? Let’s learn more about the combiner today.  ...

Balun is short for Balance To Unbalance Transformer. Balun can use to transmission between balanced and unbalanced, impedance transformation, and so on.There are current and voltage balun to select for us.  ...

when we use ordinary Yagi antennas and hand antennas, we must rotate the direction, look for the signal, and then successfully receive it, and then carry out satellite communication.  ...

There are many types of short-wave antennas, both finished and self-made, and the prices vary widely, ranging from hundreds to tens of thousands.  ...