Introduction
Every six months or so I like to reload the RPi4B OS to see what changes have occurred. Recently I installed the Debian Trixie 64bit version and am very impressed. All the software that I commonly use installed well with no glitches. I did notice that when using the RTL-SDR and GNSS receiver I often get a low voltage indication. So I changed the original 5V/3A power supply for a 5V/4A supply and so far no more alarms.
Installation Procedure
| Software & Link | Installation Procedure |
| Raspberry Pi OS Debian Trixie 64bit 6.12 Oct1_2025 https://www.raspberrypi.com/software/ https://www.raspberrypi.com/software/operating-systems/ | 1. Raspberry Pi Imager to burn uSDcard for RPi4 2. First boot set only 1 browser/set user/pswd/keybrd/language/QTH/etc/enable SSH_VNC_GPIO (Prefs/CntrlCntr) 3. Reboot on platform plan to use/example over network VNC |
| GNURadio https://wiki.gnuradio.org/index.php/InstallingGR | Install using Terminal: sudo apt-get update sudo apt-get install gnuradio |
| OpenCPN https://opencpn.org/wiki/dokuwiki/doku.php?id=opencpn:manual_basic:quick_start_guide:installation:rpi | Install using Terminal: sudo sh -c ‘echo deb https://deb.debian.org/debian bookworm-backports main>> /etc/apt/sources.list’ sudo apt update sudo apt install opencpn -y |
| Gqrx https://www.gqrx.dk/download/gqrx-sdr-for-the-raspberry-pi | Use Preferences/Add_Remove Software to search Gqrx: Install gqrx-sdr-2.17.6-2+b2(64bit) |
| AIS-catcher https://jvde-github.github.io/AIS-catcher-docs/installation/ubuntu-debian/ | Install using Terminal:sudo bash -c "$(curl -fsSL https://raw.githubusercontent.com/jvde-github/AIS-catcher/main/scripts/aiscatcher-install) _ -p" |
| FLDIGI https://www.w1hkj.org/ | Use Preferences/Add_Remove Software to search FLDIGI: Install fldigi-4.2.06-1 (64bit) |
GNU Radio Companion Basics Course
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References
#1. – “GNSS & AIScatcher on RaspberryPi4”
https://jeremyclark.ca/wp/telecom/gnss-aiscatcher-on-raspberrypi4/
#2. – “RTL-SDR for Marine GMDSS/DSC on RaspberryPi4”
https://www.gnuradio.org/
