What is an SDR?
A Software Defined Radio processes part of the received signal in software. A Web-SDR provides a control interface in the browser.
AN ACCESSIBLE INTRODUCTION
Learn
OpenWebRX+
Understand the waterfall, profiles and additional features.
/knowledge/openwebrx-plusKiwiSDR
Get to know the receiving platform and its original interface.
/knowledge/kiwisdrWeb-888
Similar operation, distinct hardware.
/knowledge/web-888Useful links
Guides, maps, radio communities and useful tools.
/linksOpenWebRX and OpenWebRX+
OpenWebRX is a browser-based SDR interface. The frequencies and modes actually supported depend on receiver hardware and configuration.
KiwiSDR
KiwiSDR is a distinct SDR system with a web interface. Its hardware is separate from the software-platform field used for other devices. A Web-888 is not automatically a KiwiSDR.
Frequency, band and mode
Frequencies are stored internally in Hz. A band is a frequency range. AM, FM and SSB are different reception modes; available modes are documented for each device.
Frequently asked questions
Do I need radio hardware?
A suitable browser is enough for a publicly accessible Web-SDR. The operator decides access and any limits.
Why is the status shown as unknown?
Without an approved and sufficiently recent check, reachability cannot be stated reliably.
Where does audio start?
The portal does not start audio. “Listen now” opens the receiver’s original interface.
Why are map positions approximate?
Private locations are protected. An exact public position requires explicit approval.