... of amplifier and flatness of connectors in good performance.5. Both the input and output have testing point(-20 ... dB).6. Four types out directional coupler(-4.5,-7,-10,-16 dB)can be choose.7. ... shock.SpecificationsPARAMETERUNITSTANDARDnoteFORWARDRETURNPass bandMHz47/87~7505-30/65AmplifierPush-PullFrequency responsedB±0.5≤550MHZ,±0.75≥750MHZRF Return lossdB5~550MHZ≥16,550~ ...