|
In Germany FM was initialized in ī49. There was an international meeting in Genova which ruled the bandwith a transmitting station could use and what frequency ranges could be used for civil broadcasting.
Unfortunately they defined the space for one broadcasting station very small, so that two senders often messed up each other (9 khz-"piping"). So you had two possibilities: The directional ferrite antenna, (Richtantenne oder Peilantenne, the knob under your volume control), or to weaken the reception, hoping the disturbing second sender will be faded out.
Thatīs the problem for am.
A weakened FM reception is seldom. Perhaps some radios had problems receiving a sender that blasted to strong.
The tuning sectors of that old beasts are often very sensitiv because of long distances between the transmitting stations.
I used to listen AFN Frankfurt on FM with an old tube set. None of my other receivers were able to fish that weak signal.
Yours
Alex
|