S132 Central Scanner Performance

[jmag999]

I am using the S132 Central + Peripheral Relay example as a basis for my tests.  I have a peripheral advertising at an interval of 20ms.  I verified this timing using a BLE sniffer, so I know that part is working.  The NRF52832 is setup using a scan interval (and window) have been set to 10 (or 6.25ms).  I am unable to reliably receive the advertisements at 20ms.  I see them at 20ms, 60ms, sometimes even 150+ms.  Any idea how I can increase the performance?

[jmag999]

As a follow-up to this, I setup this equipment in a RF chamber.  I set my phone up to advertise at 100ms interval.  With the Nordic set for scan interval and window value of 6.25ms, I was still missing advertisements.  Most came in at 100ms, but many came in at 200ms gaps as well.  Is there something in the example that can cause this?  I would have expected to see them at 100ms every time in this environment.