That is all for now. This is how my StellarMate OS is currently configured on Raspberry Pi4.
Everything seems to work just fine.
Here are a few useful commands:
See the curent temperature:
vcgencmd measure_temp
See connected USB devices:
lsusb
See mounted filesystems:
df -h
And a WiFi test I did
WiFi Signal Strength Test (Only tested 2.4 GHz):
I used these commands to get the WiFi Link Quality
iwconfig wlan0 | grep -i --color quality
iwconfig wlan1 | grep -i --color quality
First Location:
This is the worst possible location outside the house on the other side of 2 solid brick walls and around 25 meters away from the nearest accesspoint inside the house.
Built-in Raspberry Pi4 WiFi:
Link Quality=50/70 Signal level=-60 dBm
External Ralink RT5370 USB WiFi (with stock antenna):
Link Quality=55/70 Signal level=-55 dBm
External Ralink RT5370 USB WiFi (With replaced antenna):
Link Quality=57/70 Signal level=-53 dBm
Second location:
This my usual observation spot outside the house on the other side of a single solid brick wall and around 10 meters away from the nearest accesspoint inside the house.
Built-in Raspberry Pi4 WiFi:
Link Quality=55/70 Signal level=-55 dBm
External Ralink RT5370 USB WiFi (with stock antenna):
Link Quality=69/70 Signal level=-41 dBm
External Ralink RT5370 USB WiFi (With replaced antenna):
Link Quality=70/70 Signal level=-39 dBm
Conclusion:
See an explanation of the dBm values in the table on this link:
eyesaas.com/wi-fi-signal-strength/
There is an obvious improvement of using the External Ralink RT5370 USB WiFi over the Built-in Raspberry Pi4 WiFi.
The improvement is biggest in a location that don't have too bad WiFi coverage.
There is only a small improvement in signal strength of using the replacement 5dBi antenna over the stock 2 dBi antenna.
So I could keep using the small antenna and I would not reccomend buying a replacement antenna.
However, now that I have it, I will continue using it.