SGC2818 Signal Generator and Counter
The SGC2818 from Control Farayand Pasargad (CFP) is a signal generator and counter applicable to many fields. The device comes with two fully separated channels where their parameters could be arbitrary set. The device can generate various functions including pulses, analog/digital modulated signals, VCO, sweep, counters, frequency meter and others in a high performance, cost effective manner. Abundant shortcut keys and graphical user interface simplifies the operations with SGC2818.


  • Wide temperature range
  • Direct digital synthesizer technology
  • 14-bit high-speed D/A converter chip
  • Voltage Control Output (VCO) function
  • Less than 1mv quantization error (@ 5Vpp)
  • Providing stable, precise and low distortion signals
  • Various digital signals including 5V TTL and CMOS, 3.3V LVTTL, 2.5V CMOS and 1.8V CMOS
  • Various preset waveforms including Sine, Square, Pulse, Tringle/Ramp, etc.
  • Various NIM signals including negative NIM logic, slow positive NIM logic and ECL
  • Various modulation types including AM, FM, PM, ASK, FSK and PSK
  • Various sweep functions including frequency, amplitude, offset and duty-cycle.
  • Counter function with 2 working mode including AC and DC
  • Ready for field operation
  • Amplitude range 0~20Vpp
  • Minimum amplitude resolution of 1mV
  • Independent and Adjustable duty-cycle for each channel from 0.01% to 99.99% with 0.01% resolution
  • -10V~+10V DC offset function with 0.001V resolution
  • Output short-circuit protection (All channels can work for 60 seconds when the load is short-circuited)
  • Special rugged design to withstand typical field usage, waterproof against streaming water and fully dust protected
  • Waveform and state copy between channels using channel sync function
  • 01o Precision in adjusting the phases of two channels
  • Continuous operation under severe environmental condition
  • Standard dual full functional channels equals to two independent generators


The output signals are stable, precise, pure and low distortion due to the Direct Digital Synthesizer (DDS) technology utilized in SGC2818. Because the wide range of users in different fields, various considerations are made during the R&D procedure for SGC2818. All functions of the instrument can be controlled through the embedded PC via device software. The system is equipped with an IPS touch screen which lead to user-friendly graphical user interface while bringing new experience in working with signal generators.



AC 220V power cable (50Hz)

USB port

DC +5V USB (200mA) for connecting to the PC


Counter input


TTL Outputs

2 differential channels for each output (Totally 2 outputs)

TTL level amplitude > 3Vpp

Fan-out > 8 TTL load

Rise/fall time ≤ 10ns

CMOS Output

Low electric level < 0.3V

High electric level :1V~10V

Rise/fall time  18ns


Modulation signal range to input :0~5V

VCO signal frequency range :0-1000Hz

Special function: amplitude and frequency modulation by external signal

Output 1 & 2

Amplitude (Vpp):

Frequency≤10MHz: 1mVpp~20Vpp

10MHz≤Frequency≤20MHz: 1mVpp~10Vpp

Frequency>20MHz: 1mVpp~5Vpp

Resolution: 1mV

Amplitude stability: ±0.1%/h

Amplitude flatness: ±2.5%(<10MHz) and ±5%(>10MHz)


PC button

PC different functions

Power push button

Push to turn device ON or OFF (shut down)



Power on indicator (green color)


CFP logo indicator


IPS, full color

10.1”, 1280 × 800 pixels,


Waveform characteristics

Sine, Square, Pulse, Triangle/Ramp, Saw tooth Wave, CMOS, Four channels TTL, DC, Half wave, Full wave, Positive Step, Inverse Step, Positive Exponent, Inverse Exponent, Lorenz Pulse, Multi-tone, Noise, ECG, Trapezoidal Pulse, Sinc Pulse, Narrow Pulse, Gaussian White Noise, AM, FM, 5V CMOS (HC, AHC, AC), 5V TTL (TTL in/CMOS out, ACT, HCT, AHCT), 5V TTL (STD, H,L,L, HS,LS, ALS), 3.3V TTL & CMOS (LV, LVT, ALVT, LVC, ALVC), 2.5V TTL & CMOS, 1.8V CMOS (AVC)

Waveform models (frequency)

Sine (0~60MHz)

Square (0~25MHz)

Ramp, Triangle (0~10MHz)

Pulse (0~10MHz)

TTL/CMOS (0~20MHz)





Sampling rate


Vertical resolution


File Format SGC2818_Catalog.pdf en 12/16/2020 9:22:42 AM
File Format SGC2818_Persian Catalog.pdf fa 12/20/2020 6:30:39 PM
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