nRF51922 DK

Question

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!

Quantum Dimension · Accepted Answer

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.