[Elecraft] K3 command to turn agc off?

[Dave Hachadorian]

Would someone please tell me the serial command to turn the K3's 
agc off?

I see where
GT002;  is agc fast
GT004;  is agc slow

I can't figure out how to command agc OFF.

Thanks in advance.

Dave Hachadorian, K6LL
Yuma, AZ