[amsat-bb] Frequency Deviation used in AX.25 FSK

Hello all,

Few satellites like Bugsat-1 and Unisat-6 transmit FSK packet in AX.25 format. As these satellites transmit '1's and '0's in FSK, thus there must be a deviation or difference in the freq on which 1 and 0 is transmitted.

Is there any standard value for this frequency deviation? If yes what is that value?

Thanking you