Tech

Mike Radio  5835 AM on  12 -12-2021  afternoon.  Picture from Hans in Duisburg -Germany. Good sound quality is made visible on the screenshot.

 

Transmitters for broadcasting AM     

Classic transmitters: 

Rohde & Schwarz SK 050 -valve/tube technology        500 watt  (2x left on picture) 

 

Telefunken S2525/3 transistor technology , FM, AM, SSB – 1 kW @ picture right 

 

Nowadays Mike Radio broadcasts with modern dds/mosfet technology as driver,  and a  power tube 4CX3000  in final stage (picture in side bar).

All equipment in use meets strict  international technical requirements.

 

  • Dipole antenna  for shortwave broadcasting:  

    

  open line fed.   

 

  • Inverted L antenna for mediumwave broadcasting :                                                                          (based on the Veronica 192 antenna)

                                               Inverted L  antenna (+  ground field 2000 m2)

 

 

Audio for broadcasting AM:  

Audio-processor:   BW Broadcast DSPX – AM    for the best radio audio performance

AM broadcast audioprocessor

“the  soul of the station sound”

 

 

   world wide studio connection to TX site

 

Accurate  audio control on negative  & possitive  modulation peaks .

     Mike Radio engineers are frequently  experimenting  to obtain the ultimate  AM sound.

 

SDR audio picture: to make audio visible. Made by  Nicolas living near Paris (France) using  ‘Airspy HF’,   freq.  4895 kHz,  on 8th april 2021 around 18.30 UTC (= 20.30 CET local time).

 

Here below you can hear the audiofile from Nicolas that belongs ‘to the picture’ above:

This is the average reception quality @ the afternoon/evening,  which can be expected on 60 meter broadcast band, at a distance like Paris, London, Berlin and  Copenhagen.