CPFSK modulation and bit rate

Hello,
I’m a newcomer to the whole world of SDR and actually radio in general.
For
the past few days I’ve been reading through messages posted here and the
source code behind gnuradio, but I haven’t been able to find exactly
what
I’m looking for.

Right now, I am simply trying to CPFSK modulate and transmit my data
source. Using grc, I have a vector source block (simply for testing), a
CPFSK mod block, and a USRP sink. I want to send data at 10 kbps, but
looking at a scope that I set up right after the vector source, the data
is
coming across much faster than that. I added in a repeater in an effort
to
slow the data rate and generate the correct waveform, which actually
seemed
to work, but I was wondering if there is any other way to control this?

Thanks a lot,
Garrett