How to change transmitting power ?

[Newbie]

Hello, I am using pca10028 dk. I want to know how can I change the transmitting power of ble? My application needs that user should be able to change the transmitting power through app. So how should I proceed? I am using sdk 12.2.2 and I am referring code ble_app_gls.

Screen shots are Screenshot_20170301-115100.png

Screenshot_20170301-115123.png

Screenshot_20170301-115113.png

Screenshot_20170301-115602.png

Screenshot_20170301-115358.png

Thanks, Shailav

[Roger Clark]

Please see

devzone.nordicsemi.com/.../

[Newbie]

Hello, I have changed the power with api int8_t tx_power_level = -30; advdata.p_tx_power_level = &tx_power_level;

Now I am trying to check the power at -30 dbm and 4 dbm. I am using nrf connect app and I am checking rssi level but I am surprised to see that there is not much change. I am attaching screen shots above in question. Any thoughts? Thanks