數位型數字頻率計數器 , 主要規格:0.01Hz ~ 1.3GHz特點? 提供頻率與週期量測?在高頻與低頻，均具高解析度?頻率範圍：0.01Hz ~ 2.7GHz? 高感度：10mVrms?1Hz 檔解析度：100nHz?可調式觸發準位控制? 顯示鎖定功能規格顯示?8 位數 with Hz, kHz, MHz, GHz, S, mS, μS, nS and overflowGate Time?Continuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater準確度?+(Resolution+Timebase error)頻道 A範圍DC 耦合 0.01Hz ~ 120MHz；AC 耦合 30Hz ~ 120MHz感度10mVrms typical； 50mVrms max耦合AC or DC, switchable濾波器Low pass, switchable in or out for channel A.-3dB point of nominally 100kHz阻抗1MΩ//40pF衰減器x 20dB觸發準位調整-2.5 VDC to +2.5 VDC解析度The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHzinput respectively, and for period measurement is 10nS for 1Hz and 0.1fS (f=10-15) for 100MHz input respectively.At least 7,6,5 digits are display for 1S, 100mS, 10mS gate time respectivelyPeriod Range8nS to 100S at least 7 digits displayed for per second of gate time頻道 B範圍50MHz to 2.7GHz感度<50mVrms (10mVrms typical)耦合AC only時基Aging Rate1 ppm, per Month溫度5 ppm 23°C+5°C電源變化+0.005 ppm for+10% 變化使用電源?AC 100V/120V/220V/240V ±10%, 50/60Hz附件?操作手冊 × 1,電源線 × 1,測試線 GTL-110×1, GTL-101x1尺寸及重量?230(寬) × 95(高) × 280(長) mm約 2.2 公斤