Strange peaks in FSK modulated signal

[busi...@nativ-it.com]

Hey,

i am using the WSUB1G to analyse a fsk modulated signal on 433,92Mhz. I would expect a two spectrum with two peaks like in the RFBee exmaple: http://micro.arocholl.com/index.php?option=com_content&view=article&id=53%3Atutorial-how-to-use-rf-explorer-to-monitor-a-rfbee&catid=40%3Aarticle&Itemid=64&limitstart=1

But i am getting this picture:

So may you see some faults in my configurations. Whats about the antenna, how far should i pull it out? For 433 Mhz should it be 17 cm?

[Ariel Rocholl]

Hi - this looks more like a QPSK, or FHSS - are you sure the system is PSK?

Antenna distance is ok, your amplitude level is in the sweet spot.

[busi...@nativ-it.com]

Hmm the manual says: Modulation type: FSK. May this could be 4-FSK?

Here are more Screenshots. May i somehow damaged may RF Explorer?