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IARUMS R1 Technical Resources

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How to start an Intruder Watch

As the amount of all kind of intruders in the HAM Radio bands is rapidly crowing, the role of the IARU Monitoring System (IARUMS) is becoming more and more important. A number of national Monitoring Coordinators and Volunteers is watching our bands since many years, but more needs to be done to raise awareness of societies and countries where there exists actually no national monitoring team.

Your help, as Radio-Amateur operator or SWL is key to contribute in keeping our most important asset – the HAM Radio spectrum – free of intruders.

How can you help? (read more…)

Monitoring with WebSDR

A WebSDR is a simple Software-Defined Radio receiver connected to the internet, allowing multiple users to listen and tune it simultaneously. SDR technology makes possible that all users can tune independently, and so listen to different signals. WebSDR

Monitoring with KiwiSDR Network

KiwiSDR Network, a KiwiSDR receiver network available on the internet with Direction Finding feature TDoA: Time Differerence of Arrival.

TDoA feature Direction Finding example

ITU and CEPT Regulations and Documents

Signal Identification

F1B signal on 20 meters. BW = 500 Hz


OTH Radar antenna
Four OTH Radar Contayner simultaneous transmissions on 40 m.

Fishery Buoys on 10 m

List of Fishery buoys (August 2019)

Driftnet buoys
Driftnet buoy sonogram
Driftnet buoy transmission
Print This Page Updated on February 10, 2021

Materials on this website may be subject to copyright.