Feature
●It can receive four kinds of satellite signals: four kinds of signals of GPSBDSQZSSGLONASS can be received, and the most accurate positioning can be obtained by filtering the signal strength and the built-in algorithm of the chip. It is a low-power, low-cost, high-sensitivity locator.
●Two-certificate interface method: The satellite module can use the type C interface, which is convenient and fast, and also provides a serial port interface for maker development (pin headers are included in the package, and need to be welded by yourself). The Type C interface is directly connected to the computer USB through the Type C to USB cable. With the original PC debugging software (language can be selected), debugging is very simple and convenient.
●Included π antenna: 3 meter long antenna with good impedance.
●Yahboom provides more information and routines: not only provides information on GPS modules, but also routines compatible with various motherboards, not to mention relevant information on ROS robot development
●If you have any issue when using our product,or you need product use documentation, please contact us directly for assistance.we will reply your problem in 24 hours.We try our best to provide the most professional service for each customer.
Description
The GPS module is a high-performance positioning and navigation module based on ATGM336H-5N. It supports BDS system in China, GPS in UAS, GLONASS in Russia, and QZSS in Japan. It can simultaneously receive the signals of the above satellite navigation systems and realize joint positioning. It has a π-type antenna circuit, the impedance matching is 50Ω, the antenna standing wave ratio is lower than 1.6, the search signal ability is strong, and the positioning is more accurate. On-board Type-C and USB can be connected to common development boards such as computer, Raspberry Pi, Jetson, etc. Yahboom will provide ROS-related tutorials and source codes for users.
Antenna Standing Wave Ratio and Return Loss Test Chart
Return loss: refers to the ratio of the power reflected back by the RF input signal to the power of the input signal. The unit is db, which is a negative number. The lower the value, the better the antenna performance. For the built-in antenna, due to the relatively poor working environment of the antenna, the return loss is usually required to be below -7.5. For the external antenna, due to the relatively good working environment of the antenna, the return loss should be below -14. Standing wave ratio: refers to the ratio of the reflected wave amplitude to the incident wave amplitude. Ideally, the value of the standing wave ratio is 1, but in practical applications, there must be reflections. At this time, the standing wave ratio is greater than 1. The greater the reflection, the greater the standing wave ratio. Therefore, the lower the value, the closer to 1. the better.
