Ok, ok, you techies (probably) win.
I just found a problem with the Vytec hoseless system that I don't think I can work around. And it has nothing to do with interference.
Here's the scenario...... the transmitter resets its code when the pressure goes to zero. It then picks a random code when pressure is reapplied.
Now on the surface, this is no big deal. If the handset read zero, then it will go back to "SETC" and all is well. If you went out of range first, you push a couple of buttons, and it goes back to "SETC" and all is well.
Now here's the scenario where its NOT cool.
You do a valve shutdown drill. The pressure goes to zero. The handset reads that. However, in dive mode, it does NOT go back to SETC, and no amount of fiddling (that I could determine) will make it do so.
You're screwed, and no longer have pressure data. All you get now is "FAIL", and the last pressure reading that you had.
Oops.
As soon as I got within 3' of the surface, it went back into "SETC" mode, I reached back with my arm near the transmitter, it re-synced, and all was well.
Good thing I did the drill on my last stop eh?
Anyway, this appears to be a "no way to fix it" problem with Vytec and its hoseless pressure transmitter on any configuration where you have redundant regs, and thus might have a reason to shut a post off during a dive.
I just found a problem with the Vytec hoseless system that I don't think I can work around. And it has nothing to do with interference.
Here's the scenario...... the transmitter resets its code when the pressure goes to zero. It then picks a random code when pressure is reapplied.
Now on the surface, this is no big deal. If the handset read zero, then it will go back to "SETC" and all is well. If you went out of range first, you push a couple of buttons, and it goes back to "SETC" and all is well.
Now here's the scenario where its NOT cool.
You do a valve shutdown drill. The pressure goes to zero. The handset reads that. However, in dive mode, it does NOT go back to SETC, and no amount of fiddling (that I could determine) will make it do so.
You're screwed, and no longer have pressure data. All you get now is "FAIL", and the last pressure reading that you had.
Oops.
As soon as I got within 3' of the surface, it went back into "SETC" mode, I reached back with my arm near the transmitter, it re-synced, and all was well.
Good thing I did the drill on my last stop eh?
Anyway, this appears to be a "no way to fix it" problem with Vytec and its hoseless pressure transmitter on any configuration where you have redundant regs, and thus might have a reason to shut a post off during a dive.