Relevant links

SYSOP messages: Messages

Operators: Operators
Location: Location
Receivers: Receivers
Antennas: Antennas

Manual WebSDR Maasbree: MANUAL
WebSDR information: Background and technical info

The antenna: Active broadband loop antenna
The amplifier PCB is available: Parts for sale.
More information in: Broadband_active_loop_PA0SIM.pdf

WSPR: WSPR AGC impact using call PH4RTM
WSPR for comparing reception WSPR for measuring SNR differences in Dutch

CATSync: CATSync

E-mail: websdr-maasbree at

More WebSDR receivers and more info on the PA3FWM WebSDR project can be found on