studentkra

Since the main interference comes from the electrical wiring, you can try installing such a filter. As far as possible from the entrance of the electrical wiring in a private house.

@F5AFY ,

Yes. It seems that these plastic welding machines have a lot of power. I've also studied their specifications. The frequency range is 27-28 MHz. I'm even receiving a fifth-harmonic signal at 137-138 MHz, which interferes with the reception of NOAA and Meteor satellites.

Most likely, the CP2102 driver is already installed in Debian. For example of a Python script:

import serial
ser = serial.Serial('/dev/ttyUSB0', 115200)
ser.write("A1")
#A1 select antenna number 1

My project of HMC253 and ESP8266 antenna switch on Github.

Not tested yet ))

I post firmware to control PE4302 attenuator via ESP8266 on GitHub now.

https://github.com/studentkra/PE4302_attenuator