Radio Regenbogen, a privately held FM radio outlet located in Germany's Rhine-Nectar region, says it plans to commence HD Radio transmission tests within a matter of days. The HD Radio operation will include two multicast channels and marks the first IBOC digital radio broadcasting to take place in that nation.

Technical support for the Radio Regenbogen is being provided through a joint effort of Ibiquity Digital, Audioexport Georg Neumann, Orban/CRL Systems, Broadcast Electronics and Ruoss AG, a company that has already assisted with HD Radio tests in Switzerland.

Initial test results will be publicly presented at a regional Government Office for Communication in Stuttgart on Sept. 27, 2007.