Type SGQ-150 SGQ-230 SGQ-350 SGQ-350D SGQ-450 SGQ-450D Frequency (MHz) 136~172 220~240 336~370 336~370 380~470 380~470 Bandwidth (KHz) 200 500 500 500 500 500 VSWR 1.5 1.5 1.5 1.5 1.5 1.5 Insertion Loss (dB) 1.2 1.2 1.2 1.2 1.2 1.2 transmit receive separation £¨MHz£© 5.7 7 10 10 10 10 Isolation (dB) >75 >75 >75 >75 >75 >75 Maximum Input Power (W) 30 30 30 50 30 50 Connector N (or BNC) N (or BNC) N (or BNC) N (or BNC) N (or BNC) N (or BNC) nominal impedance 50¸ 50¸ 50¸ 50¸ 50¸ 50¸ Dimensions (mm) 220¡Á154¡Á31 214¡Á154¡Á31 275¡Á154¡Á31 270¡Á190¡Á37 228¡Á154¡Á31 225¡Á190¡Á37 Weight (kg) 1.2 0.9 1.2 1.8 1.1 1.5. 22*17*4cm/1pcs.