测 量 频 率 点 及频率准确度 | 50, 60, 75, 100, 120, 150, 200,250, 300, 400, 500, 600, 750,1k, 1.2k, 1.5k, 2k, 2.5k, 3k,4k, 5k, 6k, 7.5k, 10kHz ,12kHz,15kHz,20kHz 共27点 ±0.01% | 50,60,75,100,120,150,200,250, 300,400,500,600,750,1k,1.2k, 1.5k,2k,2.5k,3k,4k,5k,6k,7.5k 10k,12k,15k,20k,25k,30k,40k, 50k,60k,66.6k,75k,100k,120k, 150k,200kHz共38点 ±0.01% |