PI5RTA Helmond

Images of Amateur Radio station terAA - Helmond.



Equipment racks


Installing antenna frame


AZ-EL antennas installed

If you are unfamiliar with amateur radio visit the listed subjects.
 

Radiozendamateur (Dutch)

Hamradio (English)

Hamradio frequency allocation

Radio Spectrum

Radio Astronomy

Hamradio Contests

List of amateur radio modes

Q-Codes

ITU Prefix list

Ionosphere and radio communications.

SDR - Software defined radio

Operating procedures

Signal Identification guide

DX Cluster info

Current DX Cluster

Dxing

AgentschapTelecom - Licences and examinations (Dutch)

VERON - The association for experimental radio research Netherlands (Dutch)

Summary:

Radio amateurs depend on:

  • atmospheric conditions effected by sun and weather
  • magnetic storms after a sun burst
  • the 11 year sunspot cycle
  • the ionospheric layers at high altitude (D, E, F1 and F2 layers)
  • the difference between day and night in summer and winter

    See also HF Propagation tools.
    After the page loads click on the tenth flag to select Nederlands (Dutch)
    • Listening to the World Wide amateur radio traffic is open to anyone.
    Transmitting radio signals however is limited to licenced radioamateurs only.
    To get licenced you have to take an examination by your local administration.
    Updated jan 2026