The RT Receiver Rod Clamp from Teradek is used to securely mount an RT receiver to a single 19mm or 15mm rod. Mount the Receiver Rod Clamp directly to the 1/4"-20 thread on an MDR-M or MK3.1 Receiver, or to the 1/4"-20 thread on the mounting bracket for the MDR-MB unit. This compact, double bracket's 1/4"-20 thumbscrew fastens to a 19mm rod on one flank, or to a 15mm rod on the other.