HF band conditons: https://www.qrz.com/
Transmitters for broadcasting AM
Former Mike Radio transmitters:
Rohde & Schwarz SK 050 (valve technology )
Telefunken S2525/3 (transistor technology) @ picture right one
Nowadays Mike Radio broadcasts with most accurate dds/mosfet technology (as driver). In combination with a 6000 voltage power tube for the ultimate audio performance: Eimac 4CX3000A (as final stage ánd audio modulator – Class A). The modulator is direct fed by audio (mosfet/bridge) amplifier Behringer KM 750 watt to support a powerfull and clear AM sound.
high voltage power valve Eimac 4CX3000A (operating @ 6000 volt )
- Dipole antenna for shortwave broadcasting:
half wave dipole: L = 20 mtr
- Inverted L antenna for mediumwave broadcasting :
part of the Inverted L antenna (50 meters lenght)
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”
Accurate audio control on negative & possitive modulation peaks .
Mike Radio engineers are frequently experimenting to obtain the best audio performance.
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 4895 kHz, at a distance like Paris, London, Berlin and Copenhagen.