How to change to the output power and bitrate on the nRF52840

[CD-3]

I am in the process of replicating the BLE5 Long Range Demo (found here: devzone.nordicsemi.com/.../)

I have two of the dev kits communicate and receiving the RSSI values. However, as I was reading over the blog post again I found a section I do not understand.

"In the first test the output power was set to 4 dBm and the bitrate was set to 1 Mbit. This is the settings that would give the best range on the prior chip, the nRF52832, without using an external Power Amplifier (PA). The transmitter was then brought about 100 meters down range and the connection (RSSI) was still good." The article continues.... "For this test we turned the output power up to 8 dBm and the bitrate down to 125 kbps. This is the settings that gives the highest link budget on the nRF52840 and thereby the longest range."

I am interested in changing my power output to 8 dBm and the bitrate down to 125 kbps so as to achieve the longest range. However, I do not know how to change these values. How can I change them?

Any help is greatly appreciated!

[Petter Myhre]

I recommend you to download S140 6.0.0-6.alpha from here.

Use the example included in the zip (read the readme and apply the diff).

The TX output power is set with sd_ble_gap_tx_power_set().

The phy can be set with preferred_phy_set().

[Prarthana]

Hello, I'm unable to unzip the folder for S140 6.0.0-6.alpha. I downloaded the SDK 14.2.0 version for this purpose, although I'm using SDK 15.2.0 currently. My main intention is to display the output power of the transmitter and the receiver sensitivity, could you please guide me on how to do so ?

[Prarthana]

Hello, did you figure out how to change the output power ? Could you please help me to do the same.