Throughput sample project slow speeds

RE: Throughput sample project slow speeds

haakonsh — Wed, 16 Mar 2022 16:05:24 GMT

A PCBA between the dk's will definitley reduce the throughput considerably, as the signal will not have to rely on reflections from nearby walls in order to reach the peer's antenna.

At 1292kbps you are very close to the theoretical maximum (at zero range), but the throughput will fall drastically as you increase range. 300kbps is what I'd expect across a large office space filled with other 2.4GHz radios like wireless headphones, wifi devices, etc.

RE: Throughput sample project slow speeds

jspiller — Mon, 14 Mar 2022 17:09:58 GMT

I was able to reach 1292 kbps but the boards require no distance between them nor any obstructions. Does this seem correct? Even having just a dev board between them for a sniffer trace brought it down to 300kbps. It was my impression that it should have better range than this for these speeds.

RE: Throughput sample project slow speeds

jspiller — Mon, 14 Mar 2022 16:33:35 GMT

Yes, here is one I just ran that gave me 294kbps. I am getting quite inconsistent results now anywhere from 200kbps to 350 kbps, but still much slower than the expected values.

devzone.nordicsemi.com/.../throughput-294kbps.pcapng

RE: Throughput sample project slow speeds

haakonsh — Mon, 14 Mar 2022 14:13:07 GMT

Yeah, that is way to low of a throughput. Do you have a log or a sniffer trace?