Welcome to the PI4VNW webSDR access page
Our local VERON department runs two webSDR’s which are hosted at my rural QTH and are publicly accessible.
– WebSDR #1 runs on the WEB-888 platform and covers roughly 0-42 MHz
– WebSDR #2 runs on a SDRplay RSPduo connected to a Raspberry Pi 4B and covers airband, marine band, 2m and 70cm.
WebSDR #2 is offline until new antenna deployment.
Receiver webSDR #1
WebSDR #1 runs on the WEB-888 receiver. This device is based on the 16-bit RX-888 Mk.II SDR receiver, combined with a Zynq7010 single board minicomputer. It features 12 “channels” offering 64 MHz (!) of bandwith from DC to 64 MHz. The WEB-888 is connected to the internet via a LAN cable.
Receiver webSDR #2
WebSDR #2 runs on a SDRplay RSPduo. This is a 14-bit receiver that offers 500 kHz of bandwith. The RSPduo is connected to Raspberry Pi 4B as it’s server, running the open source OpenWebRX software as it’s frontend.
Antennas
WebSDR #1 WEB-888 uses an active receive antenna. A 100cm loop antenna with a Wellgood v4 amplifier board. The loop is made of 15mm aluminium strip. It performs from 0 kHz up to roughly 42 MHz.
WebSDR #2 RSPduo uses a Diamond SG7900 mobile whip, which performance is comparable with the base version X50.
The software and frontend
The WEB-888 runs Linux as operating system for webSDR #1. The source code is modified from Beagle_SDR_GPS. The frontend is based on OpenWebRX and offers the same features known from the KiwiSDR.
The RSPduo runs with a Linux based Raspberry Pi 4B which hosts OpenWebRX for webSDR #2. It has less options than the KiwiSDR frontend, but still offers the most important controls.
FT8 and WSPR decoding
WebSDR #1 is programmed to continuously monitor FT8 on 160m, 80m, 40m, 20m, 15m and 10m band. Spots are uploaded to PSKReporter.info and WSPRnet.org under the callsign Pi4VNW.
WebSDR #2 is skimming 2m FT8 and WSPR. Spots are uploaded to PSKReporter.info and wsprnet.org under the callsign PI4VNW as well.
Location
My webSDR is located in the small village of Mookhoek, The Netherlands (locator grid JO21hs). A rural area where the noise floor is relatively low.
More publicly accessible webSDR’s
Click to scroll through the:
list based on KiwiSDR users
list based on the WEB-888 users