What are the reasons why the vehicle GPS locator has no signal?

When we use the vehicle GPS locator, we will encounter a situation where there is no GPS signal. What causes this and how to solve it?

What is the role of GPS antennas, which play an "important role"?

As we all know, GPS is mainly a terminal product that receives satellite signals and then locates or navigates. During the process of receiving the antenna signal by GPS, the antenna must be used. GPS satellite signals are divided into L1 and L2, with frequencies of 1575.42MHZ and 1228MHZ, respectively, of which L1 is an open civil signal and the signal is circularly polarized. The signal strength is about -166dBW, which is a relatively weak signal. It is precisely because of these characteristics that GPS signal reception requires special antennas.

Do you know the role of GPS antennas?

GPS system is more and more widely used in our lives, which is inseparable from the important role of GPS antenna, the following GPS antenna manufacturers to tell you the specific role of GPS antenna.

How many types of car antennas are there?

There are 3 types of automotive antennas. The following is a relevant introduction to automotive antennas:

What is the function of the antenna on the roof?

The Teletubbies on the roof of the car, also called the car antenna, are mainly used to receive external signals and can listen to the radio in the car.

What aspects should I choose a WiFi antenna?

When the wireless communication terminal is mobile, it is necessary to consider the use of omnidirectional antenna, the omnidirectional antenna horizontal is 360 degrees, the vertical is a certain angle, the higher the gain of the omnidirectional antenna, the smaller the vertical angle;

Take you to understand the important role of antennas and their classification

Antenna is a commonly used device, widely used in radio, television, radio communications, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other fields. An antenna is a device that can effectively radiate electromagnetic waves to a specific direction in space or effectively receive electromagnetic waves from a specific direction in space. All devices that transmit signals through electromagnetic waves must have an antenna.

Introduction to the role of antennas

An antenna is an electronic device used to transmit or receive radio waves or electromagnetic waves more widely. Antennas are used in systems such as broadcast television, point-to-point radio communications, radar, and space exploration. Antennas usually work in air and outer space, but can also work underwater, and even in soil and rock at certain frequencies.

Types of antennas for antenna knowledge sharing (Part 2)

Long and medium waves propagate by earth and sky waves, which are continuously reflected between the ionosphere and the earth. According to this propagation characteristic, long and medium-wave antennas should be able to generate vertically polarized radio waves. Among the long and medium wave antennas, the more widely used vertical type, inverted L type, T type, umbrella type vertical grounding antenna. Long and medium wave antennas should have a good ground network. There are many technical problems in long and medium wave antennas, such as small effective height, small radiation resistance, low efficiency, narrow pass band, and small directivity coefficient. In order to solve these problems, antenna structures are often very complex and very large.

Types of antennas for antenna knowledge sharing (Part I)

Antenna is an indispensable part of wireless transmission, in addition to our use of optical fiber, cable, network cable, etc. to transmit wired signals, as long as it is in the air using electromagnetic wave propagation signals, various forms of antennas are required.