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As the most important receiving component of GPS module, GPS antenna is the main window of GPS to the outside world. Speaking of GPS antennas, we have to mention the active and passive antennas we often talk about. Do you know the difference of them? let's learn more together.  ...

A link budget is usually used to estimate the longest distance for a signal to travel between transmitter and receiver. This is also the main method for evaluating the coverage range of a wireless communication system and is an important work in wireless network planning. So how to make a simple link budget?  ...

After we complete , it needs to be debugged. The purpose of antenna debugging is to make the antenna system resonate at the transceiver frequency by trimming the length of the antenna element. Match the impedance of the antenna system with the transceiver impedance of the radio. Debugging generally uses standing wave meter, power meter or antenna analyzer.  ...

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?  ...

SWR is short for Standing Wave Ratio. It's a parameter often used by hams to indicate if the antenna matchs with the transmitting radio. For SWR value, it has different effects on the built-in and external antennas. so there are differnt SWR standard required for antennas with the different working environment.  ...

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.  ...

The Finnish League of Radio Amateurs (SRAL) in cooperation with Araucaria DX Group (ADXG) of Brazil and Radio Arcala, OH8X of Finland cordially invite you to join them in a global special event with their STAYHOME campaign to made QSOs with amateur radio operators all over the world. Operations taken place between 06-07 June, 2020, 10.00 UTC Saturday - 09.59 UTC Sunday. Log search entry: https://www.eacontestclub.com/concurso-de-radio-por-el-covid-19/.  ...

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?  ...

Recently Ailunce have developed three new types of Yagi antennas, so there are four types of Yagi antennas in Ailunce official web. Then, how to select the suitable type of Ailunce yagi antenna?  ...

For hams, there are many bands to use, such as UHF, VHF, HF, and so on. For Radio Operation Certificate Examination, frequency bands learning is very important item. why new ham needs to learn frequency bands? the blog will tell you.  ...