RBI HYDRAULIC BREAKER USER MANUAL. 2. How the Tool Breaks Rock. The following paragraphs describe what happens to break rock when the piston strikes the tool. (A)Contact-Initial Compression Stress Wave. When the piston (1) strikes the top of the tool (2), it sends a compressive stress wave (3) down to the.
And Counter means counter, exactly as in English. Poise means weight. So the word literally means counterweight and that is what a counterpoise is in an antenna system, where it was originally used. Simply put, a ground plane that the antenna system could mirror itself in.
One of the first products introduced to address this problem was the Watson ATX Walkabout antenna. This is sold by UK dealers Waters and Stanton PLC in the UK, and by MFJ in the US. The antenna is believed to be a Mizuho design, made under license for Waters and Stanton by Sandpiper Antennas in Wales.