Boki wrote:

Question:
1. If my FM TX freq is 100MHz, where is the RDS freq ?

Center of RDS signal at 100,057 MHz

2. The deviation means when RDS is trasmitting ( and keep trasmitting
data repeat), I check the tone deviation of RDS?

RDS don't have an start nor stop bit only a block of 26 bits, in 16 bit of
information word and 10 bit of control word with an timing pulse rate of
1187,5 Hz.

Regards,

Ralf