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Function and usage of GPS signal transponder

2020-02-28
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In the use of satellite navigation system related products, sometimes due to various factors, GPS satellite signal is too weak, too poor quality to work properly. Therefore, it is very necessary to configure a GPS satellite signal transponder, which can help the field effectively solve the problem of not receiving satellite signals or weakening the signal. This article briefly understands the function and use of GPS signal transponder.

The main function of the GPS signal transponder is to transmit the received outdoor satellite signals to the laboratory after the technology is processed by magnification and filtering. So that users can complete the testing and application of satellite signals and other related work indoors.

Typical applications of GPS transponder include GPS navigation product development / production, research and development of intelligent terminals compatible with GPS function, production, GPS labs, research institutes and so on.GPS signal coverage for aviation manufacturing, aviation maintenance, underground, indoor parking lots, subway and mine bottoms.


Take the SYN2308 GPS transponder as an example to illustrate the main components of the transponder and its functional characteristics.

It is mainly composed of outdoor satellite signal receiving antenna, low loss coaxial cable, indoor GNSS transmitting antenna and GNSS satellite navigation signal controller.

This transponder supports four navigation systems at the same time, which is low in cost, stable in signal and low in time delay, simple in installation, simple in operation and equipment. There is no limit to the number of receiving terminals in the room, and the system is free of maintenance.

SYN2308 GNSS satellite signal transponder main index, receiving antenna gain: more than 38dB, transmit antenna gain: 3.5dB, firing at Bobbi: less than 1.5, applicable area: 1000 square meters, covering a straight line distance: 20 meters.

The satellite signal antenna with signal transponder is 30 m. the mushroom head antenna can be matched with 50 meters, 80 meters and 100 meters. A set of stainless steel antenna supports will be attached to the goods. The working temperature is from -40 to +80 C.

When the GPS signal transponder is in use, the receiving antenna of the satellite signal needs to be erected in the open area of the roof or the balcony, which is favorable for the good reception of stars and prevents the signal from being blocked and disturbed. In addition, the lightning arrester module can also be selected to connect the antenna and the transponder module to prevent the thunderstorm from damaging the equipment. The lightning arrester module is a necessary surge protective device necessary for outdoor wireless base station construction to ensure the reliable operation of the whole system from lightning, inductive overvoltage, electrostatic discharge and other surge voltages.

After receiving the GPS signal transponder, please extend the mushroom head antenna to the outside of the window. After the power supply is normal, there is no problem with the simple test signal forwarding function. After normal use, the lightning arrester, antenna and bracket will be connected well, and the mushroom head antenna will be erected to the top of the building. The power supply of the transponder is powered by 220V power adapter and output +5V, and the power is less than 1W.

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