GPS-2100 series
GPS-2100 Series Function / Arbitrary Waveform Generators
Every signal, perfectly defined.
Precision DDS generation for laboratory, educational and production test work. Two channels, 200 MSa/s sampling and 13-bit vertical resolution give accurate waveforms up to 60 MHz, with six modulation formats, sweep, burst and a 100 MHz counter built in.
Up to 60 MHz
Four models from 15 to 60 MHz sine output.
Two channels
Independent or synchronised, with switchable main and auxiliary roles.
200 MSa/s, 13-bit
8 k points of arbitrary waveform memory.
Counter built in
1 Hz to 100 MHz at 32-bit precision.
Where the GPS-2100 series fits
A general-purpose bench source for anywhere a known, repeatable signal is needed.
Laboratory & R&D
Stimulus signals for circuit development, prototype bring-up and characterisation work.
Education & training
Clear front-panel controls and a 3.5″ colour display make it straightforward for teaching labs.
Production & functional test
Repeatable stimulus for go/no-go testing, with RS-232 or USB control from a test PC.
Service & repair
Inject known-good signals to trace faults through audio, filter and amplifier stages.
One source for most bench signal work
Standard and arbitrary waveforms, full modulation, sweep, burst and measurement in a single 250 mm-wide instrument.
Dual-channel DDS
Two channels driven by direct digital synthesis, with 1 µHz setting resolution and ±5 ppm accuracy. Run them independently, synchronise them, or swap which channel acts as main and which as auxiliary.
82 waveform locations
Five standard waveforms — sine, square, triangle, pulse and noise — plus 32 built-in arbitrary waveforms and 50 locations for your own, each 8192 points at 13-bit vertical resolution.
Six modulation formats
AM, FM, PM, ASK, FSK and PSK, driven from the internal modulating source or from an external input, so one instrument covers most signal simulation work.
Sweep and burst
Linear or logarithmic sweep from 1 ms to 500 s, forward or reverse. Burst output from 1 to 65,535 cycles, infinite or gated, for testing transient and start-up behaviour.
100 MHz counter built in
An integrated frequency counter covering 1 Hz to 100 MHz with gate time adjustable from 0.01 s to 10 s, plus a 32-bit event counter and period and pulse-width measurement.
PC control and ARB editing
RS-232 and USB Device interfaces at 115200 baud, with waveform editing software supplied. Optional USB Host takes a flash drive for storing instrument states and arbitrary waveforms.
Six modulation formats, no second instrument
The clearest difference between the GPS-2100 series and a basic function generator.
Simulating real signals, not just test tones
A plain function generator produces a steady waveform. Most real-world signals are not steady: they carry information in their amplitude, frequency or phase, and a receiver, filter or demodulator has to be tested against that behaviour rather than against a fixed tone.
The GPS-2100 series applies AM, FM, PM, ASK, FSK or PSK to the carrier from its own internal modulating source, or from an external input on the rear panel when the modulating signal has to come from the circuit under test. The internal source offers sine, square, triangle, up-ramp and down-ramp shapes. Sweep and burst cover the remaining cases, frequency response and transient response respectively.
Amplitude modulation
Carrier amplitude follows the modulating signal. Depth 0% to 120%.
Frequency modulation
Carrier frequency deviates around the centre, up to the full carrier frequency.
Phase modulation
Carrier phase shifts with the modulating waveform, 0° to 360° offset.
Amplitude shift keying
Output switches between carrier and modulation amplitude. Keying to 1 MHz.
Frequency shift keying
Output alternates between carrier and hop frequency. Keying to 1 MHz.
Phase shift keying
Carrier phase steps between two defined states, 0° to 360°.
Models & part numbers
Four models sharing the same platform, separated only by maximum sine output frequency.
| Model | Sine Frequency | Channels | Sample Rate | Resolution | Display | Part No. |
|---|---|---|---|---|---|---|
| GPS-2115 | 15 MHz | 2 | 200 MSa/s | 13-bit · 8 k pts | 3.5″ TFT | 202115 |
| GPS-2125 | 25 MHz | 2 | 200 MSa/s | 13-bit · 8 k pts | 3.5″ TFT | 202125 |
| GPS-2140 | 40 MHz | 2 | 200 MSa/s | 13-bit · 8 k pts | 3.5″ TFT | 202140 |
| GPS-2160 | 60 MHz | 2 | 200 MSa/s | 13-bit · 8 k pts | 3.5″ TFT | 202160 |
Square and triangle output reaches 15 MHz, pulse and arbitrary output 6 MHz, on every model. Contact us for pricing and current lead times.
Technical specifications
| Sine frequency range | 1 µHz to 15 / 25 / 40 / 60 MHz by model |
| Square frequency range | 1 µHz to 15 MHz (all models) |
| Triangle / ramp range | 1 µHz to 15 MHz · symmetry 0 to 100%, linearity ≥98% |
| Pulse frequency range | 100 µHz to 6 MHz · minimum width 20 ns, 1 ns resolution |
| Arbitrary frequency range | 1 µHz to 6 MHz |
| Noise | 7 MHz bandwidth (−3 dB) |
| Frequency resolution | 1 µHz |
| Frequency accuracy | ±5 ppm · stability ±1 ppm per 3 hours |
| Channels | 2 · independent or synchronised, with switchable main / auxiliary roles |
| Sampling rate | 200 MSa/s |
| Vertical resolution | 13-bit · 8192-point waveform length |
| Waveforms | Sine, square, triangle / ramp, pulse, noise and DC · 32 built-in arbitrary plus 50 user-defined locations |
| Amplitude range | 2 mVpp to 20 Vpp below 10 MHz · to 10 Vpp from 10 to 30 MHz · to 5 Vpp at 30 MHz and above |
| Amplitude resolution | 1 mV · flatness ±0.4 dB below 10 MHz, ±1.0 dB above |
| DC offset range | ±10 Vpk (ac + dc) · ±0.25 Vpk for outputs of 0.1 V and below |
| Sine purity | Harmonics ≥45 dBc below 1 MHz, ≥40 dBc from 1 to 20 MHz · THD under 0.8% (20 Hz to 20 kHz) |
| Square edges | Rise and fall under 20 ns · overshoot under 5% |
| Duty cycle | 1–99% below 100 kHz · 20–80% to 5 MHz · 40–60% above, 0.1% resolution |
| Output impedance | 50 Ω ±10% · load set to 50 Ω or High-Z per channel |
| Phase adjustment | 0 to 359.9° in 0.1° steps |
| Modulation | AM / FM / PM / ASK / FSK / PSK, internal or external |
| Modulating source | Sine, square, triangle, up-ramp, down-ramp · 2 mHz to 20 kHz (AM / FM / PM) · keying 2 mHz to 1 MHz |
| Sweep | Linear or logarithmic · 1 ms to 500 s · forward or reverse · internal, external or manual trigger |
| Burst | 1 to 65,535 cycles, infinite or gated · period 1 µs to 500 s |
| Frequency counter | 1 Hz to 100 MHz · gate time 0.01 s to 10 s · 32-bit count to 4,294,967,295 |
| Sync output | TTL into 50 Ω · rise and fall under 25 ns · up to 25 MHz |
| Display | 3.5″ TFT LCD, 480 × 320, 16M colours · English or Chinese menu |
| Storage | 100 instrument states and 50 arbitrary waveforms · USB flash drive supported |
| Interfaces | RS-232, USB Device · USB Host optional · 115200 baud |
| Power | 220 V ±10%, 45–65 Hz (110 V ±10% optional) · under 15 W |
| Dimensions / mass | 250 × 90 × 300 mm (w × h × d) · 3.5 kg main unit |
| Operating conditions | 10°C to 40°C · ≤90% RH below 35°C, ≤60% RH from 35°C to 40°C |
What’s in the box
- GPS-2100 series main unit3.5″ TFT colour display
- Three-wire power cableMains lead
- BNC coaxial cableOutput connection
- CD-ROMWaveform editing software
- Optional accessoriesBNC alligator lead, RS-232 / USB cable, cabinet kit
Need pricing or a spec check?
Tell us your application and we’ll come back with pricing, lead time and options.
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