The transmitter for the AM broadcasting is more powerful than FM transmitter.

Why in the AM broadcasting might do you feel the romance in the frequency modulation broadcasting without?
Because one digit is different, it is powerful, and a broadcast in the ionosphere reflection all over the world according to time zone as for the transmission output.
AM transmitter of government-controlled station BBC RADIO 5 in Britain(150Kw)

The above-mentioned photograph is AM transmitter that BBC RADIO 5 set up in Brookmans Park of Britain uses.
Made by the Malcone company, the transmitter is Doherty model B6034. Three (Doherty) AM transmitters of 50Kw are done in combines and synthetic output of 150Kw is transmitted, and this transmitter is installed in 1978, and is movable at present

This transmitter uses vacuum tubes of two per one called 4CX35000 instead of the transistor and the modulation is a screen grid modulation.

In the bay of RADIO 5, it is a limiter of the delay type designed for the Optimod 9200 processor and AM6/18 BBC.