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The RIGOL DSG800 Series is a family of highly cost-effective, economical RF signal generators spanning the DSG815, DSG821, DSG821A, DSG830, DSG836, and DSG836A. The series delivers up to -112 dBc/Hz typical SSB phase noise, up to +20 dBm typical maximum output power, and amplitude accuracy as tight as 0.5 dB typical, combining superb signal stability with a compact, lightweight form factor that occupies minimal bench and rack space.
An RF signal generator produces a precise, controllable carrier at a specified frequency, power level, and modulation state, providing the known stimulus an engineer needs to characterize, align, or troubleshoot a receiver, component, or system. The DSG800 Series carries this role with a digital ALC circuit and an electronic attenuator, and supports complete AM/FM/ØM analog modulation and a standard LF output, with pulse modulation available as an option.
The DSG800 Series comprises six RF signal generator models — the DSG815, DSG821, DSG821A, DSG830, DSG836, and DSG836A — that share a common architecture, user interface, and modulation feature set while differing in maximum frequency and I/Q configuration. Every model starts at 9 kHz and uses the same digital ALC circuit, electronic attenuator, internal 10 MHz reference, and standard AM/FM/ØM analog modulation with LF output.
The upper frequency limit defines the principal step between models: 1.5 GHz for the DSG815, 2.1 GHz for the DSG821 and DSG821A, 3 GHz for the DSG830, and 3.6 GHz for the DSG836 and DSG836A. The 'A' models, the DSG821A and DSG836A, add I/Q modulation as a standard configuration together with an internal I/Q baseband generator.
Each new model linked below is its own dedicated product page with condition-matched pricing, so you can select the exact frequency tier and configuration your application requires and review that model's specific availability and price.
When selecting within the series, the key decisions are maximum carrier frequency and whether vector (I/Q) modulation is required. The DSG815 covers to 1.5 GHz, the DSG821/DSG821A to 2.1 GHz, the DSG830 to 3 GHz, and the DSG836/DSG836A to 3.6 GHz; pulse modulation, the pulse generator, the pulse train generator, and the OCXO-B08 high-stable reference clock are available as options across the series.
I/Q modulation and the internal I/Q baseband generator are available on the DSG821A and DSG836A, which ship with I/Q modulation as a standard configuration. Refer to the comparison table that follows for the per-model frequency range and configuration differences.
| Model | Frequency Range | Max Output Power | Phase Noise (typ.) |
|---|---|---|---|
| DSG815 | 9 kHz to 1.5 GHz | +20 dBm (typ.) | < -112 dBc/Hz (typ.) |
| DSG821 | 9 kHz to 2.1 GHz | +20 dBm (typ.) | < -112 dBc/Hz (typ.) |
| DSG821A | 9 kHz to 2.1 GHz | +20 dBm (typ.) | < -112 dBc/Hz (typ.) |
| DSG830 | 9 kHz to 3 GHz | +20 dBm (typ.) | < -112 dBc/Hz (typ.) |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Specification | Value |
|---|---|
| Frequency | |
| Frequency range (DSG815) | 9 kHz to 1.5 GHz |
| Frequency range (DSG821 / DSG821A) | 9 kHz to 2.1 GHz |
| Frequency range (DSG830) | 9 kHz to 3 GHz |
| Frequency range (DSG836 / DSG836A) | 9 kHz to 3.6 GHz |
| Frequency resolution | 0.01 Hz |
| Setting time | < 10 ms (typ.) |
| Frequency Band (N factor) | |
| Band 1: f < 227.5 MHz | N = 0.25 |
| Band 2: 227.5 MHz ≤ f < 455 MHz | N = 0.125 |
| Band 3: 455 MHz ≤ f < 910 MHz | N = 0.25 |
| Band 4: 910 MHz ≤ f < 1820 MHz | N = 0.5 |
| Band 5: 1820 MHz ≤ f ≤ 3600 MHz | N = 1 |
| Internal Reference Frequency | |
| Reference frequency | 10 MHz |
| Temperature stability (0°C to 50°C, reference to 25°C) | < 2 ppm |
| Temperature stability with option OCXO-B08 | < 5 ppb |
| Aging rate | < 1 ppm/year |
| Aging rate with option OCXO-B08 | < 30 ppb/year |
| Internal reference frequency output | 10 MHz, +5 dBm to +10 dBm |
| External reference frequency input | 10 MHz, 0 dBm to +10 dBm, max. deviation ±5 ppm |
| Frequency Sweep | |
| Sweep type | Step sweep (equally or logarithmically spaced frequency steps); List sweep (list with arbitrary frequency steps) |
| Sweep mode | Single, continuous |
| Sweep range | Full frequency range |
| Sweep shape | Triangle, ramp |
| Step change | Linear or logarithmic |
| Number of points (step sweep) | 2 to 65535 |
| Number of points (list sweep) | 1 to 6001 |
| Dwell time | 20 ms to 100 s |
| Spectral Purity | |
| Harmonic (CW mode, 1 MHz ≤ f ≤ 3.6 GHz, level ≤ +13 dBm) | < -30 dBc |
| Non-harmonic, 100 kHz ≤ f ≤ 1.5 GHz (CW mode, level > -10 dBm, carrier offset > 10 kHz) | < -60 dBc, < -70 dBc (typ.) |
| Non-harmonic, 1.5 GHz < f ≤ 3.6 GHz | < -54 dBc, < -64 dBc (typ.) |
| SSB phase noise, 100 kHz ≤ f ≤ 1.5 GHz (CW mode, carrier offset = 20 kHz, 1 Hz measurement bandwidth) | < -105 dBc/Hz, < -112 dBc/Hz (typ.) |
| SSB phase noise, 1.5 GHz < f ≤ 3.6 GHz | < -99 dBc/Hz, < -106 dBc/Hz (typ.) |
| Residual FM, 0.3 kHz to 3 kHz (CW mode, RMS value at f = 1 GHz) | < 10 Hz rms, < 5 Hz rms (typ.) |
| Residual FM, 0.03 kHz to 20 kHz | < 50 Hz rms, < 10 Hz rms (typ.) |
| Amplitude | |
| Specification level range, 9 kHz ≤ f < 100 kHz | +5 dBm |
| Specification level range, 100 kHz ≤ f ≤ 3.6 GHz | +13 dBm |
| Maximum output level, 100 kHz ≤ f ≤ 3.6 GHz | +20 dBm |
| Minimum output level, 9 kHz ≤ f ≤ 100 kHz | -110 dBm |
| Minimum output level, 100 kHz < f ≤ 3.6 GHz | -110 dBm |
| Setting resolution | 0.01 dB |
| Absolute level uncertainty, +13 dBm to -60 dBm (100 kHz ≤ f ≤ 3.6 GHz, 20°C to 30°C) | ≤ 0.9 dB, ≤ 0.5 (typ.) |
| Absolute level uncertainty, -60 dBm to -110 dBm | ≤ 1.1 dB, ≤ 0.7 (typ.) |
| VSWR (1 MHz ≤ f ≤ 3.6 GHz) | < 1.8 (typ.) |
| Level setting time (fixed frequency, 20°C to 30°C) | ≤ 5 ms (typ.) |
| Max. reverse power - max. DC voltage | 50 V |
| Max. reverse power, 1 MHz < f ≤ 3.6 GHz | 1 W |
| Level Sweep | |
| Sweep type | Step sweep (equally spaced level steps); List sweep (list with arbitrary level steps) |
| Sweep mode | Single, continuous |
| Sweep range | Full level range |
| Sweep shape | Triangle, ramp |
| Step change | Linear |
| Number of points (step sweep) | 2 to 65535 |
| Number of points (list sweep) | 1 to 6001 |
| Dwell time | 20 ms to 100 s |
| Trigger mode | Auto, key, external, bus (USB, LAN) |
| Internal Modulation Generator (LF) | |
| Waveform | Sine, square |
| Frequency range (sine) | DC to 200 kHz |
| Frequency range (square) | DC to 20 kHz |
| Resolution | 0.01 Hz |
| Frequency error | The same with that of the RF reference source |
| Voltage range (AC) | 0 to 3 Vp |
| Voltage range (DC) | -3 V to 3 V |
| Voltage resolution | 2 mV |
| Amplitude Modulation | |
| Modulation depth | 0% to 100% |
| Resolution | 0.1% |
| Setting uncertainty (fmod = 1 kHz) | < setting value × 4% + 1% |
| Distortion (fmod = 1 kHz, m < 30%, level = 0 dBm) | < 3% (typ.) |
| Modulation frequency response (m < 80%, DC/10 Hz to 100 kHz) | < 3 dB (nom.) |
| Frequency Modulation | |
| Modulation source | Internal, external |
| Max. deviation | N × 1 MHz (nom.) |
| Resolution | < 0.1% of the deviation or 1 Hz, take the greater one (nom.) |
| Setting uncertainty (fmod = 1 kHz, internal modulation) | < setting value × 2% + 20 Hz |
| Modulation source | Internal, external |
| Trigger mode | Auto, key, external, bus (USB, LAN) |
Important: Maximum reverse power: 1 W (1 MHz < f ≤ 3.6 GHz); maximum reverse DC voltage: 50 V.
Important: I/Q Modulation and the I/Q Baseband Generator are only available on the DSG821A and DSG836A models.
Important: The option DSG800-PUM (Pulse Modulation, Pulse Generator) will be installed automatically after the DSG800-PUG (Pulse Train Generator) option is installed.
Important: SSB phase noise performance is available for software version 00.01.07 or above.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
RIGOL
Condition
Factory New
Manufacturer
RIGOL
Rf_gen_freq
9 kHz to 1.5 GHz
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