Not out of the box. The nRF Sniffer uses the UART to send the sniffed data to the on board programmer on the DK, which will send it onwards to the computer via USB. The module itself doesn't have a debugger.
If you wanted the Rigado-300 module to do the same, you would need a segger programmer connected to pin P0.06 and P0.08. I am not sure whether you can do this with a normal programmer, or if you need to use the onboard debugger on the DK.
Also, you need an external LFXTAL that matches the one on the DKs, because the nRF Sniffer FW isn't open source, you can't adjust this.
If you want to sniff something, I would recommend that you get hold of a DK. If you intend to create a commercial sniffer using this module, we need to look at the licences that comes with the nrf sniffer. But again, it is more work to get this up and running on the module, so if it is for your own use, I would recommend to go with the DK.
I don't know. It may be, but I can not guarantee it. It was written for the DK, and we don't plan it to support other HW, because it would be too much work to maintain a large number of devices. So what the sniffer does is use the radio, and transmit the data over UART. If the BMD-300 eval kit is able to transmit and receive UART over USB, then it may work, as long as the LF XTAL is close enough to the one used on the DK, and the PCB layout is similar enough. But if you want to use the nRF Sniffer, then I suggest you use the HW that it is designed for.
