GPS is a terminal that receives satellite signals for positioning or navigation, and antennas are required to receive signals, so it is called GPS antenna. GPS satellite signals are divided into L1 and L2, with frequencies of 1575.42MHZ and 1228MHZ respectively; they are currently used in many fields, such as buses, aerospace, automation equipment, automotive electronics, etc. So what should customers pay attention to when using GPS antennas? The following professionals tell you:

GPS antenna

1. GPS antennas cannot be 100% positioned: Because GPS antennas are not like mobile phone broadcasts, they can receive signals anywhere. Many things will affect their reception, including the distribution of stars in the sky, buildings, viaducts, radio waves, leaves, thermal insulation paper, etc. There are really too many things that affect it; generally speaking, looking up from the GPS position, the area of the sky that can be seen is the area where the GPS antenna can receive signals.

2. Do not use it once or twice, or for one or two days, to decide whether the GPS antenna is good or bad: because the status of empty satellites is different every day, maybe in the same place, the reception will be full in the morning, but it cannot be positioned at night. These situations are all possible. It is also possible that the positioning status is not good for several days in a row, so do not make a rash decision on the quality of the GPS antenna.

3. Compare the quality of GPS antennas: To compare the quality of GPS antennas, you must compare them at the same time and place. Many people who buy new ones will think that the one they used before is better, but this is not necessarily correct, because the final results are very different at different times and places. You must use them for a long time, or at the same time and place, to feel the differences between the two GPS antennas.

4. The GPS reception strength table is no longer sufficient as a reference for purchasing GPS antennas. When people buy, they only look at the reception table in the electronic map. It may have been accurate before, but now the GPS antennas have false signals or simulated signals to make the reception table look good, which causes inaccurate positioning or incorrect display.

5. When buying a GPS antenna, you do not need to choose based on the brand, but you can choose the chip used internally: There are many manufacturers of GPS antennas on the market. The only consideration when choosing a manufacturer is the after-sales service. It is not necessarily the case that a large manufacturer has the best reception. Generally speaking, GPS antennas with the same chip made by different manufacturers will not have much difference in performance. Therefore, when purchasing a GPS antenna, you can choose based on the GPS receiving chip, rather than the brand of the merchant.