I know bluetooth on iphone is class 2 and range is 30 feet. But i tried connecting 2 iphone via bluetooth and it's range is 40 - 50m.
What happens when I connect the iPhone with a class 1 Bluetooth device? what is range?
Can anyone give me an explanation?
Thank you
我知道iPhone上的蓝牙是2级,范围是30英尺。但我尝试通过蓝牙连接2 iphone,它的范围是40 - 50米。将iPhone连接到1级蓝牙设备时会发生什么?什么是范围?任何人都可以给我一个解释吗?谢谢
1 个解决方案
#1
1
Bluetooth power classes from Spec v4.2. 
规范v4.2中的蓝牙功率等级。
Typically two class1 devices can communicate over 100meters. where as Class2 devices communicate till 10 meters. mixing them doesn't give the expected range as the Transmitter of the Class2 device has too low power to reach the class1 device, hence the total range remains at 10 meters. please also note that Dynamic power control is used by Bluetooth Classic to adjust the power according to the distance. see the following Bluetooth LMP level messages. 
通常,两个class1设备可以通过100米进行通信。 Class2设备通信直到10米。混合它们不会给出预期的范围,因为Class2设备的发射器功率太低而无法到达class1设备,因此总范围保持在10米。另请注意,Bluetooth Classic使用动态功率控制来根据距离调整功率。请参阅以下蓝牙LMP级别消息。
May be this link will help you understand the relationship between Transmit power and Range.
可能是这个链接将帮助您了解发射功率和范围之间的关系。
#1
1
Bluetooth power classes from Spec v4.2.
规范v4.2中的蓝牙功率等级。
Typically two class1 devices can communicate over 100meters. where as Class2 devices communicate till 10 meters. mixing them doesn't give the expected range as the Transmitter of the Class2 device has too low power to reach the class1 device, hence the total range remains at 10 meters. please also note that Dynamic power control is used by Bluetooth Classic to adjust the power according to the distance. see the following Bluetooth LMP level messages.
通常,两个class1设备可以通过100米进行通信。 Class2设备通信直到10米。混合它们不会给出预期的范围,因为Class2设备的发射器功率太低而无法到达class1设备,因此总范围保持在10米。另请注意,Bluetooth Classic使用动态功率控制来根据距离调整功率。请参阅以下蓝牙LMP级别消息。
May be this link will help you understand the relationship between Transmit power and Range.
可能是这个链接将帮助您了解发射功率和范围之间的关系。