Thanks for your input Yardov, I'll try to explain my situation better. I am running a real-time DAQ system that uses the PXI-5152 digitizer. I have another PXI chassis that has a PXI-5652 RF signal generator. I would move the 5652 to the RT chassis, but unfortunantly, the 5652 isn't supported by real-time. I am using the RF generator to produce a FM signal. This signal has a carrier frequency of 3GHz, and is being modulated 800MHz by an internally generating triangle wave at a rate of 1KHz. I need a trigger signal for the DAQ system that is in sync with the 1KHz triangular modulation waveform.
The only thing I could think of was using the 10MHz system clock of the RF signal generator with a divide-by 1000 circuit but I haven't tried it. I was hope someone else would have ran into this problem before and found a solution.