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,
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,
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,
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
