Hi!
I have more nrf52840 boards with pcb antenna. I would like to ask u. Maximum data change distance with 8dbm tx power is 5-6m . Is it normaly?
Hi!
I have more nrf52840 boards with pcb antenna. I would like to ask u. Maximum data change distance with 8dbm tx power is 5-6m . Is it normaly?
Hi,
Wireless range depends on a lot of factors, but 5-6m sounds quite short. You can make a private case and share your design if you want us to review it.
Best regards,
Andreas
We used PTR9818 module: http://abluetech.com/uploads/allimg/190410/APTR9818_EngV1.0.pdf
We dont find design file for this module.
Next step we would like to design new pcb for smartwatch. Can u tell me, where can i find antenna design? Which completed module can work long range?
Hi,
Yes.
Hi,
Well, 8-9m when connecting to your phone is not a whole lot, so if you have similar poor performance in both ends of the link, further reduction is expected. What range do you get if you run the same application on a DK?
Best regards,
Andreas
HI,
I ordered yesterday two DK and i will try with them.
Thanks all answer for you! Have a nice day!
Hi,
Sorry but i have one more question.
I read this blog: https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf52840-dk-range-testing-with-ble-zigbee-and-thread-protocols-at-0-4-and-8dbm-transmit-power-settings
Based on this. Will i be able to communication in ble@1Mbs mode between two nrf52840-dk module at a distance of 50 meters?
Hi,
It depends on the environment you are testing in. If fairly noise free and line of sight then yes, if in a dense office building in a busy city then probably no.
Best regards,
Andreas
Hi,
It depends on the environment you are testing in. If fairly noise free and line of sight then yes, if in a dense office building in a busy city then probably no.
Best regards,
Andreas
Hi,
I tested two nrf52840 Holyiot-18010 module.
The central-link was in the build and the peripheral was in the yard. I could communication between two board at a distance of 20 meters. I think is very good performance! I think there was something wrong with the PTR9818 module.
Thank you for any help!!
Hi,
I do not think there is anything wrong with the module, but the antennas are likely affected differently if you do not mount the modules on a host PCB, as they are optimized for and designed for this. Also, the antennas are likely affected differently if you do not follow the layout/mounting requirements from the manufacturer.
Still, there is only one ground pin on the PTR9818 it seems, meaning it will not make for a very good ground plane connection with the host PCB. This will likely limit RF range also.
Best regards,
Andreas
Hi,
You were right. PTR module work nice. I placed the module an other 230x230 mm PCB and I soldered the gnd to the pcb. I measured between two module 150m distance on BLE 4.0 mode.
So i had mistake on my pcb design.
Thanks for all reply.
Hi,
Happy to help, glad it worked out.
Best regards,
Andreas
