How to get signal strength?

Open kermitas opened this issue 13 years ago • 1 comments

Hello,

thank you ManiacBug for RF24 and RF24Network!

I have a question. Is there a way to check signal strength between trasmitter and receiver??

Thanks, Arthur.

[PS Chapter 6.4 of nRf24L01+ documentation (http://www.nordicsemi.com/kor/content/download/2726/34069/file/nRF24L01P_Product_Specification_1_0.pdf) describes something like RPD (Received Power Detector measurements).]

Dec 10 '12 11:12 kermitas

You may read out the register 09 manually about 170µs after you switch over to receive mode. I would sample over a period and calculate an average. Please keep in mind that it is only a rough estimation and depends on external factors like the ambient temperature.

The status of RPD is correct when RX mode is enabled and after a wait time of Tstby2a +Tdelay_AGC= 130us + 40us. The RX gain varies over temperature which means that the RPD threshold also varies over temperature. The RPD threshold value is reduced by - 5dB at T = -40°C and increased by + 5dB at 85°C.

Apr 03 '13 22:04 etemu