nrf51822 Operating Range

RE: nrf51822 Operating Range

Håkon Alseth — Mon, 13 Jan 2014 12:12:16 GMT

Optimal output power is related to what you set in the radio, and what power is radiated from the antenna. In this case you will have to have two components matched to 50 ohm:

Matching network
Antenna

The antenna will not radiate omni-directional, meaning it will have a higher output in some angles than other.

Optimal output is basically setting x dBm, and measuring about the same power emitted from the antenna.

Best regards Håkon

RE: nrf51822 Operating Range

kjell bystedt — Mon, 13 Jan 2014 10:26:22 GMT

Hello I a have similar question what is the optimal output power?

RE: nrf51822 Operating Range

Ole Morten — Tue, 30 Jul 2013 10:49:22 GMT

For this, I'd recommend you to take a look on our antenna white papers: https://www.nordicsemi.com/eng/nordic/download_resource/19919/4/76748061 https://www.nordicsemi.com/eng/nordic/download_resource/20025/2/52186892

RE: nrf51822 Operating Range

TechGeek — Sat, 06 Jul 2013 18:15:13 GMT

Thanks Håkon for the quick response.

Could you point me to Nordic's guidelines for antenna?

RE: nrf51822 Operating Range

Håkon Alseth — Fri, 05 Jul 2013 09:36:22 GMT

The overall range of a RF device is very hard to calculate, as there are many factors that come into play.

This list can go on and on. Another thing about RF is that you will have reflections, and obstacles (like concrete walls etc) that comes into play when talking about range. With an optimal tuned design, both antenna and output power, you will see around 20-25 meters in an office environment, depending on master used (phone, our dev dongle, BT4.0 usb dongle, etc.)