What Nordic Chip to use, need help

RE: What Nordic Chip to use, need help

Johann — Thu, 27 Feb 2014 06:15:46 GMT

Do you perhaps know how a chip antenna would compare to a PCB antenna ?

RE: What Nordic Chip to use, need help

wlgrd — Tue, 25 Feb 2014 21:13:34 GMT

Of course man! Looking forward to your results, so please make sure to post them ;D

RE: What Nordic Chip to use, need help

Johann — Tue, 25 Feb 2014 20:55:43 GMT

Haha well the calculator actually said 3 km is doable so I take it as 1 km . But I do have my doubt's as well but need to try.

RE: What Nordic Chip to use, need help

wlgrd — Tue, 25 Feb 2014 20:46:45 GMT

What type of antenna did you do your calculations with? If calculations tells you that you should really have free line-of-sight and good weather to achieve that with a PCB antenna ;)

RE: What Nordic Chip to use, need help

Johann — Tue, 25 Feb 2014 20:44:43 GMT

Yes I agree , I have started playing with a design using the 905 . Calculation say I should Get around 1 km with 6db output and 10 dB gain on RX side . My biggest concern now is , which PCB antenna design to use ..... Does anyone maybe have any eagle files already laid out?

RE: What Nordic Chip to use, need help

wlgrd — Tue, 25 Feb 2014 20:35:15 GMT

With a PCB antenna I have seen absolute maximum measurements on 1km range, but this is impossible using any 2.4GHz transceivers. The 9E5 (or maybe 905) is surely the only possible option for such a range.