NI6602 Set another timebase

Hey,

I'm using NI6602 Countercard to read external signales and for two of the eight channels I use two of the internal clocks (100khz and 20MHz). Now I'd like to set a better timebase (from another NI Card) to increase the accuracy of the clocks which is at the moment (100ppm pm 0.01%, see NI6602 specs, page 2)

My Questions: Is this possible and if so how do I do it?

NI6602 specs

For Configuration and Reading of the NI6602 channels I use Daqmx Channels, Read Daqmx Channel etc.

Do you need more information for helping me?

Best regards,

Christian