How to achieve long range?

RE: How to achieve long range?

Jared — Mon, 21 Jan 2019 08:30:19 GMT

Hi,

NRF_ERROR_INVALID_PARAM is returned when one or more of the parameters that are passed doesn't satisfy the specification. You should check ble_scan params and the p_adv_report_buffer to the documentation.

RE: How to achieve long range?

jawadk — Fri, 04 Jan 2019 10:34:19 GMT

Hi, I have the same problem switching my ble_app_uart and ble_app_uart_c to long range , when i change the phys to work with coded instead of 1MBPS the function sd_ble_gap_adv_set_configure in the peripheral code and the function sd_ble_gap_scan_start return error numbe 7 , I think this is error NRF_ERROR_INVALID_PARAM.

how I fix this please ?

I tried to look at the example code on the blogpost you linked in the previous reply, but i didn't find the code there.

I am using the nRF5_SDK_15.2.0_9412b96 SDK and the s140_nrf52_6.1.1_softdevice

RE: How to achieve long range?

Jared — Wed, 10 Oct 2018 08:58:10 GMT

Did you check the example code on the blogpost i linked in the previous reply? I suggest that you compare your code with the example code from the guide so that you can see what's missing. In the mtu_throughput example you should change the tx_phys , rx_phys, scan_phys to BLE_GAP_PHY_CODED to achieve long range in advertising and scanning. But again, all of this is done in the example code.

Jared

RE: How to achieve long range?

Alan Ajit — Wed, 10 Oct 2018 05:21:32 GMT

I am just tested Relay example just change the phy (Coded) and power

changes:-

set power to 8 db

Change phy to coded:-

now application works.(no hang now)

but i didin't get long range

is it any wrong in my procedure?

what changes are needed to get long range?

RE: How to achieve long range?

Jared — Tue, 09 Oct 2018 06:29:01 GMT

Could you share your project files?

Jared

RE: How to achieve long range?

Alan Ajit — Sat, 06 Oct 2018 05:31:01 GMT

Thanks for your replay i try to achieve long range

first i changed primary phy to coded phy in the example mtu_throughput(because i want to board works initially in long range) but code hangs and reset the board(error - invalid parameter)

i want to work my application in long range when boards start running. i need some help

is it any wrong in my procedure?

and how i set maximum power in sdk 15?

RE: How to achieve long range?

Jared — Fri, 05 Oct 2018 12:09:45 GMT

I suggest that you read our tutorial on "Testing Long Range with Nordic Solution" which you can find here.

Jared