Who Here Beside Me is Familiar with Smallpipe or Mode Bravo?

I'm a Ham and ex OS/EW when we were 50/50 tubes and transistors. We always used "pipe size" to describe bandwidth. Still true today, if you have more bandwidth, you can cram more information in it given the same mode of transmission. I vaguely remember Mode Bravo maybe relating to radio silence, but even with coffee on board, am not sure. I agree with MSgt Steven Holt, NRP, CCEMT-P it's too damn early.....

PO1 William "Chip" Nagel - Dammit Chip! Stop making me think before I've had morning coffee! lol

Small Pipe for me was shutting down all communications via satellite (last time I worked with it was 1982) and going HF only. It was difficult to make the transition after the luxury of Sat Comm but once we switched over it became more than routine. My ship, the USS Edenton (ATS 1) was put on Small Pipe all the way to the Med. It was a two week transit. We checked into Rota, did the check-in, etc. and then hit the Med. Day one we went into their Small Pipe and for the months we were there we did it again. I'm here, so I must have lived through it. Retired in 1986.