显示

8 位数 with Hz, kHz, MHz, GHz, S, mS, µS, nS and overflow

Gate Time

Continuously vary from 10mS to 10S, or 1 period of input depending on whichever is greater

准确度

+(Resolution +Timebase error)

频道 A

范围

DC 耦合 0.01Hz ~ 120MHz；AC 耦合 30Hz ~ 120MHz

感度

10mVrms typical； 50mVrms max

耦合

AC or DC switchable

滤波器

Low pass, switchable in or out for channel A.
-3dB point of nominally 100kHz

阻抗

1MW//40pF

衰减器

x 20dB

触发准位调整

-2.5 VDC to +2.5 VDC

解析度

The maximum resolution for frequency measurement is 100nHz for 1Hz and 0.1Hz for 100MHz input 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 respectively

Period Range

8nS to 100S at least 7 digits displayed for per second of gate time

频道 B

范围

50MHz to 1.3GHz

感度

<40mVrms (10mVrms typical)

耦合

AC only

时基

Aging Rate

1 ppm, per Month

温度

5 ppm 23°C + 5°C

电源变化

+0.005 ppm for +10% 变化

使用电源

AC 100V/120V/220V/240V ±10%, 50/60Hz

附件

操作手册 × 1, 电源线 × 1, 测试线 × 2, GTL-101 × 1, GTL-110 × 1

尺寸及重量

230(宽) × 95(高) × 280(长) mm, 约 2.2 公斤

机种

主要功能或用途

GFC-8270H

数位型数字频率计数器 0.01Hz ~ 2.7GHz

GFC-8131H

数位型数字频率计数器 0.01Hz ~ 1.3GHz

GFC-8010H

数字频率计数器 1Hz ~ 120MHz