Broadcast technic

A bit history, Radio Scheveningen / PCH:  https://www.youtube.com/watch?v=xKK_7LYKkeY

 

HF band conditons: https://www.qrz.com/

 

Transmitter for short wave band (HF) broadcasting:    (coverage 1.5 – 15 Mhz)                  DDS/mosfet driver  +  4CX3000A Eimac in final stage,  as class A modulator.

 

       Eimac  4CX3000A operating at  6000 Volt

 

• Dipole antenna  for broadcasting:  

half wave dipole:  L =  20 mtr    

• Inverted L antenna for broadcasting : 

                                                part of the  Inverted L  antenna  (50 meters lenght)

 

Audio control system for  AM broadcasting: 

Audio-processor:   BW Broadcast DSPX – AM

AM broadcast audioprocessor

“the  soul of the station sound”

 

 

Accurate  audio control on negative  & possitive  modulation peaks .

Mike Radio engineers are frequently  experimenting   to optimize  broadcast  (audio) quality.       As a result Mike Radio is one of the best sounding  AM radiostations on shortwave.