The transmitter operator TDF ( Teledifffusion de France ) bursts into life periodically and tests the DRM transmitters at Issoudun and Montsinery. None of these tests has lasted more than a month and terminate at short notice. The CSA in France has decided to use DRM on medium wave and probably 26 MHz. Currently TDF broadcasts on 3965 kHz with 1 kW for long periods of the day and the site is also used by TDP in Belgium.
The stereo AM medium wave transmitter on 864 kHz has been tested in DRM mode in 2007. There were also TDF test transmissions on 999 kHz from the same site. The power used was 8 kW and the transmitter has been reported as a Thomson M2W unit. An SFN system was broadcast 24 hours per day for several months and was widely heard in France and the south of the UK.
Low power DRM tests have also operated on both 26 MHz (DRM) and 59 MHz (DRM+) from Rennes but have now ceased. Littoral Media carried out DRM tests from February to June 2008 on 1593 kHz using a Transradio 10kW TRAM transmitter.