How to log channel information?

[daNonBoard]

I doing some basic antenna tests via RSSI and the logger output is quite important to me. So far, I managed to log my RSSI values and timestamp, as well as the ID of my devices. 

However, it would be really interesting to also see the channel information (on which channel were the advertising packets transmitted + RSSI). I am using the standard advertising mode (channel 37, 38, 39). Is there any possibility to log the channel information and maybe also other additional information? 

[daNonBoard]

I just found the information I needed. I can access the channel index via p_scan_evt->params.filter_match.p_adv_report->ch_index, which returns the channel to my rssi value. 

[Simonr]

Glad to hear you figured it out! I was also going to suggest maybe doing a sniffer trace to get a detailed log file. If this is for development purposes only, a sniffer log might be the easiest and most descriptive kind of log you can get. All you need to use the nRF Sniffer for BLE is an additional nRF52 series DK to for sniffing and download Wireshark to capture the trace.

But if you want it as part of the advertising/regular log on the nRF, this would be the way to do it I think.

Best regards,

Simon

[daNonBoard]

Thank you for you suggestions. I was also using the BLE Sniffer in my setup, and it gave me the additional information you mentioned. 

But sometimes, the RSSI values were a bit off in comparison to the ones I get over the examples (I am using 3 different examples to compare RSSI). Since I am also using different antennas, the RSSI should be as accurate as possible, so that I can discard some antennas, before doing serious tests with my VNA.