Depth isnt there all the time on hook 2 4x sonar

SOURCE: Globalmap 2000 sonar not responding

Not enough info to diagnose your problem. It sounds like a networking problem. I couldn't find a manual for the sam-st module so I'm not sure how you have it hooked up. Typically with these devices only one would be hooked up to the SONAR module, and it would then share the data with the other display via an ethernet or NMEA2000 network. The erratic behavior of your bluewater could be due to some sort conflict with the current coming from the GlobalMap2000. Do you get the same problem when the 2000 is turned off? Have you tried running the GlobalMap2000 with the bluewater turned off?

SOURCE: First time run, everything mounted correctly,

So the depth is flashing and you don't see any bottom return at all, right?

Are you in the water, or trying it out before you put the boat in the water?
If you are not in the water, try it out in the water because it can be difficult to get any kind of return out of the water.

Try resetting the X67c to factory defaults:
1. Turn unit off
2. Press and hold the down arrow key
3. Press PWR while still holding the down arrow key, the unit will enter production test mode. Let go of the down arrow key
4. Press EXIT 5 times
5. Press ENT and the unit will shut off

Turn it back on and if you still have the same problem, depth flashing 0.0 or 0.5 or 60 probably and no bottom, then a good bet would be a bad transducer.