TX power values

[Manoj Hiwarkar]

Supported tx_power values: -40dBm, -20dBm, -16dBm, -12dBm, -8dBm, -4dBm, 0dBm, +3dBm and +4dBm. 

What is difference in the behavior of nrf 52832 chip for these different values.

[Håkon Alseth]

Hi,

 

What is difference in the behavior of nrf 52832 chip for these different values.

Current consumption, range, and the physical output power.

Please see here for the current consumption: https://infocenter.nordicsemi.com/topic/ps_nrf52840/radio.html?cp=4_0_0_5_19_14_1#unique_1123852154

 

Kind regards,

Håkon 

[Manoj Hiwarkar]

Does it have any thing with the distance?

[Håkon Alseth]

Yes, it has an impact on distance. By lowering output power, you are also lowering the signal strength.

[Manoj Hiwarkar]

What are the different distances for above different values?

[Håkon Alseth]

Range depends on a long list of things, and which receiver you're using.

I can throw out a number, let's say 20 meters at 0 dBm output power, but it would likely be wrong, depending on what environment you're testing in and how your antenna radiates.

 

In theory; 6 dB gives a doubling of range, but in real life, I would recommend that you test. 

 

Kind regards,

Håkon