Hello,
Where do we buy the nRF51922 DK / EK kits? I do not see any purchase links online.
Also, how flexible is the ARM core for programming ?
Thank you!
Hello,
Where do we buy the nRF51922 DK / EK kits? I do not see any purchase links online.
Also, how flexible is the ARM core for programming ?
Thank you!
Assuming a heart rate monitor or sensors transmitting at that power level, the average distance of reliable communication is probably around 30m. I am just trying to understand if this distance can be improved(say by 10m or more) by improving receive sensitivity of chip and link budget. The chip may already be doing a multi-point optimization of what can be achieved. So I am keen on knowing what avenues such as better antenna design etc that can be explored to achieve this and trade-off issues.
This would have been better off as a separate question, but all our experience tells us that if you want to improve range, you need to do it on the transmitter side, by adding a power amplifier (PA). Adding an LNA on the receiver side most often doesn't actually give any increased range, since even a good LNA tends to amplify noise more or less as much as it amplifies the signal, and by that actually gives roughly equal (or possibly worse) signal-to-noise ratio, in total not giving any additional range.
If you're satisified with the answer to the original question here, I'd be happy if you could click the "Accept as answer" below it, to mark this question as solved.
This would have been better off as a separate question, but all our experience tells us that if you want to improve range, you need to do it on the transmitter side, by adding a power amplifier (PA). Adding an LNA on the receiver side most often doesn't actually give any increased range, since even a good LNA tends to amplify noise more or less as much as it amplifies the signal, and by that actually gives roughly equal (or possibly worse) signal-to-noise ratio, in total not giving any additional range.
If you're satisified with the answer to the original question here, I'd be happy if you could click the "Accept as answer" below it, to mark this question as solved.