... , easy for operation.Variable width, voltage square pulse generator set and multi-pole damping set, making the probe and the detector match up ... ,2,6,12dB continuousFrequency band(-3dB)Broadband 0.5~20MHZBand pass 1~5, 2~10,5~20Amplifier accuracy±1Db/12DbVertical linear error≤3 ... weight210-165-50(mm)\1.8Kg(with battery)Environmental temperature-5°C~60°C(reference)Relative humidity20~90%RH Curve DAC ...