9289,80: Radio Oranje @ 1423. SINPO 33233. Here is a recording - station ID in 16th minute of recording: (recorded @ 1423 @ LOCATION NO. 2):

http://www.radio.strefa.pl/Oranje-6289,80kHz-3052008-1423UTC-Loc2-ram.ram

And below is an antenna picture which Free Radio Nova operator e-mailed to me, taken during broadcast May 3, when Free Radio Nova and Radio Oranje both were transmitting on 9289,80 kHz