OpenWebRX SDR (?)

Support the Site!

Hey there. Sorry to interrupt. I've seen you here a few times now, and I wondered if you're finding the site useful. If so, would you consider supporting it?

This site and all its features are proudly provided to the community free of charge (and without ads)! However, there are costs (servers, etc) involved for me to keep it going.

If you have found it useful, and would like to show your appreciation and help with costs, you can throw a few dollars into the hat below!


The web SDR page is hosted on a Raspberry Pi 4 with 4 GB of memory. It is running the OpenWebRX web SDR software on it to provide the web interface. When there are no active listeners on the SDR, it is on a schedule to decode various digital modes in the background, and send them to PSK Reporter and WSPRnet.

MF/HF Receiver

The MF/HF receiver is a NooElec NESDR SMArt RTL-SDR stick. An opendous Upconverter 125MHz v1.3 is connected between it and the antenna, and bumps all signals up by 125 MHz, moving them into the optimal receiving range of the RTL-SDR. The antenna is an MLA-30 mag-loop. Currently the antenna is mounted about 6 feet up, on a length of PVC pipe outside my garage.

VHF/UHF Receiver

Previously, I had a second SDR stick acting as a VHF/UHF receiver but it is currently down pending the purchase of another SDR stick. If you'd like to help out, feel free to check out the Patreon!

SDR Hardware Setup