Thanks for the reply. I had an issue with the PPM setting that needed adjustment. I also need to find a solution for the high gain. I added a blacklist entry that frees up the receiver, decoupling it from the DVB-T receiver.

First create the following file (copy past from sudo all the way to last EOF)

sudo tee /etc/modprobe.d/exclusions-rtl2832.conf <<EOF
# Blacklist host from loading modules for RTL-SDRs to ensure they
# are left available for the Docker guest.

blacklist dvb_core
blacklist dvb_usb_rtl2832u
blacklist dvb_usb_rtl28xxu
blacklist dvb_usb_v2
blacklist r820t
blacklist rtl2830
blacklist rtl2832
blacklist rtl2832_sdr
blacklist rtl2838

Do you mean OpenWebRX+ 1.2.117 SD Card Image for 64bit Raspberry Pi ?

 

RasPi 3 probably doesn't have enough processing power, and although it has 64-bit ARM core with a 32-bit GPU, the usual RasPi OS is only 32-bit.

 

I'd suggest minimum RasPi 4 (or even better a 5) hardware, to be able to take full advantage of OWR+.

 

 

On Tue, Aug 4, 2026 at 05:26 AM, GEORGE-SV1GGY wrote:

Good evening to the group. I have an RPi 3B and installed OpenWebRx from the official site (dated 11/10/2023), and it works very well. However, when I installed OpenWebRx version 1.2.117 from LZ2SSL, I get no VHF/UHF/HF reception at all. In the first instance, the system recognizes the SDR as an RTL-SDR, whereas in the second, it recognizes it as a DVB TV receiver. Does anyone have any idea what I should do? The waterfall display is blue, but there is no signal reception. All settings seem to work, yet there is no reception. Thanks in advance.