How to connect spectrum analyzer with NRF52840-DK?

[soumil]

Hi,

We were planning to use a spectrum analyser in order to do the radio test on the nrf52-dk. Where should the analyzer be connected? Should it be connected to the J1 connector on the nrf52-dk?

Also J1 connector is SWF type. Are SWF and SMA connectors both of the same type ? If it is, then would this cable work ? www.amazon.com/.../B007PPHUO2

[Sigurd]

Hi soumil,

In order to connect from SWF to BNC, you have to go through a SMA cable/connector, and then you need a SMA to BNC converter. SWF <-> SMA <-> BNC. See this page for the SWF/SMA probe, + need a SMA to BNC adapter.

But note that you should make sure that your oscilloscope actually support 2.4 GHz signal before buying any cables or adapters. Many BNC oscilloscope only support a couple hundred MHz, and is not in the GHz range.

[soumil]

Thanks Sigurd.