German experimental stations on 440 kHz

Geri Holger, DK8KW/W1KW, in Peine near Hannover, reports that German telecommunication authorities have issued him an experimental license to operate on the 'medium wave' frequency of 440 kHz using the call sign DI2BO.

He joins Walter Staubach, DJ2LF, in Dormitz near Nuernberg, who's been operating experimental station DI2AG on 440 kHz.

Tests have been under way on that frequency since January 2005, Holger says, "to study the special propagation conditions on medium wave." Holger says CW beacon transmissions (which include call sign and grid square) will be sent on 440 kHz (±100 Hz), maximum 200 Hz bandwidth at a maximum power of 9 W ERP.

"Both beacon transmissions will be coordinated in a way so that they can be observed simultaneously to study the propagation from both locations at the same time," Holger explained. "Also, two-way contacts between both
experimental stations are planned."

Further information is on the DK8KW Longwave Information Web site