In one of my builds I have used the Arylic external WiFi rod-antenna: Wifi/ Bluetooth External Antenna for DIY Amplifier-Arylic.com
The connector is a RP-SMA.
For my build I have built a Up2Stream Mini inside the metal casing of an amplifier. And I have drilled a hole in the metal casing, to let the RP-SMA connector stick through it, and put the WiFi rod antenna on top of the RP-SMA connector sticking to the outside.
My experience now is that this causes hum & cracks on the speakers. I guess the RP-SMA connector-metal making contact to the metal casing of the amplifier, is causing this.
- Anyone recognizes this?
- What is the best way to solve?
- Suggestions for isolating?