Technics

Broadcast technic

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

Transmitter for short wave band (HF) broadcasting:                                                                                                                                                                                                                                                                                                      DDS/mosfet driver  +  4CX3000A Eimac in final stage,  class A/B modulator.

 

 

Antenna for short wave band broadcasting:  

dipole:   half horizontal & half diagonal    (‘the  half lazy doublet’)

 

For broadcasting  by skywave* to  western Europe :  *https://en.wikipedia.org/wiki/Skywave

 

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!