track sos not only has wired track sos and wireless track sos, but also has card and card free points. The stability of the received signal of wired track sos is stronger than that of the received signal of the wireless device. Then, which signal of the plug-in device and the non-plug-in device is stronger?

track sos is the signal of the plug-in card strong or the signal of the no-plug-in card strong?

In fact, the card device is no different from the free card device, the free card device also needs to use the data card, but the business will be built into the card in advance, eliminating the need for users to buy the data card and then insert the card, because the so-called free card locator.

Therefore, card-free devices are not really card-free devices, and there is no signal strength.

If the signal of the device bought by the user is not good, it must have nothing to do with whether the card is inserted or not. It is possible that the locator is improperly installed, or the current signal is weak. Readjust the positioning position of the locator, or drive away from the signal area, and the signal reception of the device will return to normal.

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