can i get a range up to 150 meter ?

RE: can i get a range up to 150 meter ?

Pitius Tec S.L. — Thu, 03 Aug 2017 15:21:14 GMT

Only to increase the range is not the problem. They are severall steps to be cleared before: -What for a device is used as other point? (mobile phone, nRF-based device etc.) -Will you only make a test or should it work after regulatory tests? (FCC etc.) The first step is to choose a very good antena model with a big groundplane. The best amplifier is a good antena. But this rule is valid for booth sides. It makes no sense to talk with +4dBm and a big antenna if the receiver is deaf. Always you must observe the complete setup, not only one endpoint of the connection. I have a costumer application where we come only 1m with a good setup and 4dBm, but the module is inside of the human body :-), the same setup on fre air we reach several 100m

RE: can i get a range up to 150 meter ?

ovrebekk — Thu, 03 Aug 2017 13:53:51 GMT

Hi Tizana

155m line of sight should be possible with the nRF52832 if you use 1Mbps modulation and +4dBm output power.

The problem with estimating range is that it is so dependent on the environment you are in, that it is dangerous to make any promises.

2.4GHz signals are affected heavily by metal objects and water (including things containing water, such as humans and plants), and as soon as you lose line of sight you are unlikely to get much past 50m.

The nRF52840 should go into production in Q1 next year, so you could start your development on the nRF52832 now and then migrate to the nRF52840 later if the range is not sufficient.

Best regards
Torbjørn

RE: can i get a range up to 150 meter ?

ovrebekk — Thu, 03 Aug 2017 13:42:16 GMT

'Close to' the limit is the key point. We didn't really have time to test the exact limit at 1Mbps since we ran out of open field for doing the run ;)

RE: can i get a range up to 150 meter ?

endnode — Thu, 03 Aug 2017 07:41:38 GMT

Yes, that's what they say, but then you have plenty of developers who are not afraid to go to extremes;)

twitter.com/.../748965495769067521 twitter.com/.../745373232765730818

RE: can i get a range up to 150 meter ?

Tizana — Thu, 03 Aug 2017 02:55:04 GMT

thanks for the answer but in the video where they tested the nrf52840 chip in free air, at 1:33 they said 'in the first test we went to the distance of 125 meters which is close to the limit of the nrf52832 Device'

here's the video : www.youtube.com/watch

RE: can i get a range up to 150 meter ?

endnode — Thu, 03 Aug 2017 02:48:15 GMT

You can achieve 1km on free air with nRF52832, probably much more. It doesn't make sense to talk about any other test condition than free air because that isn't reproducible among different locations, so I hope this is OK. (This sort of question reminds me "can I go in car 100 miles per hour" question = the answer is indeed YES but it doesn't help you are all in whatever you are doing;)