Have you ever had problem with RSSi value measurement?

[Amonet_STid]

hello,

On a device with nRF51822-CEAA packaged in a ISP130301, we have a problem with RSSI value measurement. We use Master control panel and bluetooth usb key provide in the dev kit. Between normal RSSI value measurement and this value there are approximately 20dbm. Where this problem may come from?

Best Regards

Adeline Monet STid

[Amonet_STid]

Ok thanks for your answer and explanation Antenna and nRF is package on black box module distributed by Insight SIP, I will contact them to have more information

[Wojtek]

Bottom half of the module has so-called "keep out zone" where no traces etc should go. Did you respect the manufacturers guidelines when designing the pcb? There are many things that can affect antenna performance...