Transmitters for LP AM broadcasting or occasionally relay service on shortwave
Out of order: Classic transmitters (60’s & 70’s)
Rohde & Schwarz SK050 (0,5 kW) Telefunken S2525/3 (1 kW)
Latest mosfet TX technology:
Interested in a 400+ watt / 1600+watt pep mosfet power transmitter shortwave or (400 watt / 1 kW mediumwave? Mail for info: firstname.lastname@example.org
- Dipole antenna (one system) for broadcasting :
L = 2 x 50 meter
h = 20+ meter centre
In real the arms of the dipole are constructed under a corner. The polarization of this antenna is in general horizontal (upwards/skywave).
Audio line for broadcasting AM:
Audio-processor: BW Broadcast DSPX – AM for the best radio audio performance
“the soul of the station sound”
Accurate AM audio control on negative & possitive modulation peaks .
Mike Radio engineers are frequently experimenting to obtain the ultimate sound experience.
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 / 52 meter meter band, at a distance like Paris, London, Berlin and Copenhagen.