The Surplus Radio Society, a Dutch society of collectors of old ex-military radio equipment and other nostalgic receivers and transmitters holds weekly radio activity nets every Sunday on 3.575 MHz CW / 3.705 MHz AM and sponsors several flea markets and exchange fairs each year.
The Surplus Radio Society, a Dutch group of collectors for antique military radio devices and other sentimental receivers and transmitters, conducts weekly radio activity nets every Sunday on 3.575 MHz CW / 3.705 MHz AM and organizes several flea markets and exchange fairs annually.