Good evening,
So for the past 2 or so hours I've been trying to determine how far Bluetooth 3.0 can reach, in terms of distance. I know this isn't a CPU specific question but I'm hoping someone might have a general idea. I'm trying to pair a Bluetooth item that I will be wearing, a heart monitor, to my phone which may be up to 40-50 yards (45-50m) away. It will be in an indoor setting, open, no walls or other obstructions. There might be other cell phones around though. I've found the wave lengths and the distances for Bluetooth 1 and 2, but as far as Bluetooth 3.o, I've only came across wave lengths and speeds. Any input would be greatly appreciated, or even if you could point me in the right direction i don't' mind doing some research. I'm really striking out with my search terms.
What I'm trying to do.
I'm playing indoor soccer and would like to wear a heart monitor on me. I've found one that I can pair to my phone via Bluetooth and then have my results on hand using various compatible apps. The idea is that if I'm wearing the monitor, I can leave my phone in my bag on the sidelines and it'll hopefully collect data throughout the game. An indoor field is roughly 200ft long (67ft or 60M). I can have my bag, or even the phone, at roughly midfield.
TL:DR
Roughly how far can Bluetooth 3.0 reach, distance wise, with no walls or obstructions?
Thank you in advance for any suggestions or help.
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The transmission ranges don't change under Bluetooth 3.0 A class I Bluetooth device is still theoretically capable of 300 foot transmission unaided. a class II is about 30 foot, a class 3 device is about 3 feet. The new gimick with bluetooth 3.0 is the data transmission portion of the signal is actually shunted to 802.11 wireless bandwidths. Aside from that they are basically identical to Bluetooth 2.1 + EDR specifications. Your device is most likely a class II device, and you are almost certanly not going to have good signal. You can theoretically build a booster along the theory of a Yagi high gain antenna (see Cantenna) but the additional bulk and required directionality is going to make that problematic given your needs. You might want to look at an alternative device that allows you to log heart rate data to the wearable portion of the device without need of a network connection, and then upload it when you are within range. Depending on the model, that might be what you have there already. Very few of them require a constant phone tethering session, if nothing else because the power requirements to maintain that at full transmission capacity will drain your phone and your heart rate monitor in a very short period of time depending on which phone you actually have, etc.
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Thank you so much for the information, as always the Zam community comes through!
I believe that my best bet may be to find a wearable option that has a USB or some sort of SD card, which will then allow me to upload data right on to my computer.
Again, thank you! I know it wasn't a hardware question per say, but I trusted this forum more so than some of the others that would require me to register.
Have a good night.
I believe that my best bet may be to find a wearable option that has a USB or some sort of SD card, which will then allow me to upload data right on to my computer.
Again, thank you! I know it wasn't a hardware question per say, but I trusted this forum more so than some of the others that would require me to register.
Have a good night.
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