Instek GFG-8216A Function Generator   FEATURES:   Frequency Range: 0.3Hz ~ 3MHz Waveforms：Sine, Triangle, Square, Ramp, TTL and  CMOS Output External Voltage Controlled Frequency (VCF)  Function Duty Cycle Controlled with Signal Inversion Capability Variable DC Offset Control Two-Step (-20dB x 2) and Variable Attenuator Built-in 6 Digit Counter with INT./EXT. Function up to  150MHz / high resolution      Data Sheet    User Manual        SPECIFICATIONS       Main         Frequency Range 0.3Hz to 3 MHz (7 ranges)       Amplitude >10Vp-p (into 50Ω load)       Impedance 50Ω +10%       Attenuator -20dB+1dB x 2       DC Offset <-5V ~ >5V( into 50Ω load)       Duty Control 80% : 20% : 80% to  1MHz Continue variable       Display 6 digit LED display       Sine Wave       Distortion <1%, 0.3Hz ~ 200kHz       Flatness <0.3dB, 0.3Hz ~ 300kHz； <0.5dB, 300kHz ~ 3MHz       Triangle Wave       Linear >98%, 0.3Hz ~ 100kHz； >95%, 100kHz ~ 3MHz       Square Wave       Symmetry +2%, 0.3Hz ~ 100kHz       Rise or Fall Time < 100nS at maximum output (into 50Ω load)       CMOS Output       Level 4Vpp+1Vpp ~ 14.5Vpp+0.5Vpp adjustable       Rise or Fall Time <120nS       TTL Output         Level >3Vpp       Fan Out 20 TTL load       Rise or Fall Time <25nS       VCF         Input Voltage 0V~10V ± 1V(100 : 1)       Input Impedance 10kΩ ±10%       Frequency Counter       Int./Ext. Switch selector       Range 0.3Hz ~ 3MHz (5Hz ~ 150MHz EXT.)       Accuracy Timebase accuracy +1 counter       Timebase ±20ppm (23°C±5°C) after 30 minutes warm up       Resolution The maximum resolution is 100nHz for 1Hz and 1Hz for 100MHz       Input Impedance 1MΩ // 150pF       Sensitivity <35mVrms (5Hz ~ 100MHz)； <45mVrms (100MHz ~ 150MHz)       Power Source AC 115V/230V±15%, 50/60Hz       Accessories Instruction manual × 1, Power cord × 1, GTL-101 × 2       Dimensions & Weight 251(W) × 91(H) × 291(D) mm, Approx. 2.1kg