For the purpose of RF Scan, YES
STEP-1:
First thing you need is to access RPi from your Desktop/Laptop through SSH.
CASE-1: You have a Mac
Open the terminal and type following:
ssh pi@192.168.0.21
(replace 192.168.0.21 by you Pi’s actual local IP)
Next enter Pi’s password when asked. If you are using piaware sd card image, the password is flightaware. If you are using Raspbian image, the password is raspberry.
CASE-2: You have a Windows Laptop/Desktop.
Install & use PuTTY. The guide is here:
For Beginners - How-to SSH to RPi - Setup Putty in Windows
STEP-2:
After you have connected to Pi through SSH as explained above, issue following commands:
Case 1: You have Piaware sd card image
(Replace xx by the value of gain you want to set)
sudo piaware-config rtlsdr-gain xx
sudo systemctl restart piaware
Case 2: You have Raspbian image
sudo nano /etc/default/dump1090-fa
Above command will open a file. Move to following line and change --gain -10 to --gain xx where xx is the value of gain you want to set.
RECEIVER_OPTIONS="--device-index 0 --gain -10 --ppm 0"
Save file (Ctrl+O) and close (Ctrl+x)
Now restart dump1090-fa
sudo systemctl restart dump1090-fa