# Rohde & Schwarz SMT06 5 kHz to 6 GHz Signal Generator (Pre-Owned) # Rohde & Schwarz SMT06 5 kHz to 6 GHz Signal Generator (Pre-Owned) ## Key Features At A Glance - Overload protection from externally applied RF/DC: SMT02 and SMT03 ≤50 W/35 V, SMT06 ≤1 W/0 V - Specified frequency range from 5 kHz: SMT02 to 1.5 GHz, SMT03 to 3 GHz, SMT06 to 6 GHz - AM, FM, phase, and pulse modulation, available in any simultaneous combination - Broadband FM from DC to 8 MHz and broadband phase modulation from DC to 2 MHz - RF, LF, and level sweep with programmable level correction for external frequency response - IEC 625 (IEEE 488) remote control with SCPI 1993.0 command set for automated test systems - Optional Multifunction Generator (SM-B6) adds VOR/ILS and stereo multiplex generation - Large backlit LCD, minimum RF leakage via special shielding, three-year calibration interval The SMT Signal Generator covers the complete range of conventional analog receiver measurements, delivering exceptionally high signal quality for its price category along with outstanding level accuracy. It offers a wide variety of modulation and signal generation modes, customized configuration, and straightforward operation, with all relevant settings shown on a large backlit LCD. Programmable RF, LF, and level sweeps together with correction of external frequency response make it well suited as a source for electromagnetic susceptibility (EMS) measurements. The SMT is built for receiver and EMS measurements. Its specified frequency range starting at 5 kHz and its programmable level correction make it an ideal EMS signal source, while the optional Multifunction Generator (SM-B6) extends it into stereo measurements on FM sound broadcast transmitters and receivers and into VOR/ILS avionics signal generation. Across these applications the instrument provides any simultaneous combination of AM, FM, phase, and pulse modulation. ValueTronics stocks and holds its own test-and-measurement inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every used unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer. This combination of held inventory and hands-on used-unit verification lets engineers source instruments like the SMT with confidence in both availability and condition. ## Compare Other Models in This Series The SMT Signal Generator is offered as a family of three models that share a common architecture and differ in upper frequency limit: the SMT02 (5 kHz to 1.5 GHz), the SMT03 (5 kHz to 3 GHz), and the SMT06 (5 kHz to 6 GHz). All three deliver the same core capability set — high signal quality, outstanding level accuracy, and a wide range of modulation and sweep modes — across their respective frequency ranges. Each model targets conventional analog receiver measurements and EMS work, with the same 0.1 Hz frequency resolution, −144 to +13 dBm level range, and simultaneous AM, FM, phase, and pulse modulation. The choice between models is primarily a question of the highest frequency the application requires. Each SMT model below is its own dedicated product page with condition-matched pricing. Select the pre-owned listing for the model and frequency range your application requires; the specifications described here apply to the model family as a whole. Beyond upper frequency limit, the models differ in a few specifications tied to that range. Level accuracy for levels above −127 dBm is ±1 dB below 1.5 GHz, widening to ±1.5 dB above 1.5 GHz and ±2 dB above 3 GHz, so the higher-frequency SMT03 and SMT06 carry the wider tolerances at the top of their ranges. The matching pulse modulator option also differs by model — SM-B3 for the SMT02, SM-B8 for the SMT03, and SM-B9 for the SMT06. Overload protection against externally applied RF power and DC voltage also varies: the SMT02 and SMT03 tolerate up to 50 W / 35 V, while the SMT06 is limited to 1 W / 0 V. The comparison table below summarizes the frequency range, accuracy, and option differences across the three models. Model Frequency Range Max Output Level Pulse Modulator Option **SMT06** 5 kHz to 6 GHz +13 dBm SM-B9 SMT02 5 kHz to 1.5 GHz +13 dBm SM-B3 SMT03 5 kHz to 3 GHz +13 dBm SM-B8 Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Product Core & Specifications Specification Value Frequency Range SMT02 5 kHz to 1.5 GHz Range SMT03 5 kHz to 3 GHz Range SMT06 5 kHz to 6 GHz Resolution 0.1 Hz Phase offset adjustable in 1° steps Reference Frequency Aging (after 30 days of operation), standard 1 x 10⁻⁶/ year Aging, option SM-B1 <1 x 10⁻⁹/ day Temperature effect (0 to 55 °C), standard 2 x 10⁻⁶ Temperature effect (0 to 55 °C), option SM-B1 <5 x 10⁻⁸ Spectral Purity – Spurious Signals Harmonics <−30 dBc, with SM-B8/ -B9: <−26 dBc Nonharmonics f <1.5 GHz <−80 dBc Nonharmonics f >1.5 GHz <−74 dBc Nonharmonics f >3 GHz <−68 dBc SSB Phase Noise (at 20 kHz from carrier, 1 Hz bandwidth) <67.5 MHz <−120 dBc 125 MHz <−134 dBc 250 MHz <−128 dBc 500 MHz <−122 dBc 1000 MHz <−116 dBc 2000 MHz <−110 dBc 3000 MHz <−109 dBc 6000 MHz <−103 dBc Residual FM, rms (f = 1 GHz) 0.3 to 3 kHz (CCITT) <8 Hz 0.03 to 20 kHz <20 Hz Level Range −144 to +13 dBm Resolution 0.1 dB Accuracy for levels >−127 dBm, f <1.5 GHz ±1 dB Accuracy for levels >−127 dBm, f >1.5 GHz ±1.5 dB Accuracy for levels >−127 dBm, f >3 GHz ±2 dB Level frequency response at 0 dBm 1 dB, typ. 0.3 dB Overload protection (50 Ω source, externally applied RF power and DC voltages), SMT02 and 03 ≤50 W / 35 V Overload protection, SMT06 ≤1 W / 0 V Modulation Simultaneous modulation any combination of AM, FM (ϕM) and pulse modulation Amplitude Modulation Type internal, external AC/ DC Modulation depth/ resolution 0 to 100 % / 0.1 % Setting error at 1 kHz (m <80 %) <4 % of reading ±1 % AM distortion at 1 kHz, m = 30 % <1 % AM distortion at 1 kHz, m = 80 % <2 % Modulation frequency range DC to 100 kHz Frequency Modulation Type internal, external AC/ DC, two-tone with two separate channels FM 1 and FM 2 Maximum deviation depending on carrier frequency: 5 MHz (at fc <130 MHz) to 40 MHz (at fc 6 GHz) Setting error at AF = 1 kHz (FM AC) <(3 % of reading + 20 Hz) FM distortion at AF = 1 kHz and 50% of max. deviation <0.2 %, typ. 0.1 % Modulation frequency response FM1/ 2: 20 Hz (DC) to 100 kHz 0.5 dB Modulation frequency response FM2: 20 Hz (DC) to 8 MHz 3 dB Carrier frequency offset (FM DC) <0.1 % of deviation Stereo Modulation Crosstalk attenuation \>50 dB Unweighted S/ N ratio \>76 dB Phase Modulation Type internal, external AC/ DC, two-tone with two separate channels broadband ϕM or narrowband ϕM (broadband ϕM only possible with ϕM2) ϕM range 1: DC to 100 kHz 12.5 to 400 rad ϕM range 2: DC to 2 MHz 0.625 to 20 rad Pulse Modulation (with option SM-B3, SM-B8, SM-B9) Operating modes external; internal with optional Pulse Generator SM-B4 On/ off ratio \>80 dB Rise/ fall time (10/ 90 %) <10 ns Internal Modulation Generator Frequencies 0.4/ 1/ 3/ 15 kHz ±3 % Level (EMF) at LF socket 1 V ±1 % (Rout = 10 Ω, RL >200 Ω) Sweep Type digital sweep in discrete steps for RF, level and LF LF sweep with option SM-B2 or SM-B6 Remote Control Interface IEC 625 (IEEE 488) Command set SCPI 1993.0 LF Generator (option SM-B2) Sinewave, noise 0.1 Hz to 500 kHz Triangular, squarewave 0.1 Hz to 50 kHz Distortion (20 Hz to 100 kHz) <0.1 % (level >0.5 V) Level (EMF) at LF socket 1 mV to 4 V (Rout = 10 Ω, RL >200 Ω) Multifunction Generator (option SM-B6) Modulation signals sinewave, triangular, sawtooth, squarewave, noise, stereo MPX, VOR/ ILS Sinewave, noise 0.1 Hz to 1 MHz Triangular, sawtooth, squarewave 0.1 Hz to 50 kHz Distortion (20 Hz to 100 kHz) <0.1 % (level >0.5 V) Level (EMF) at LF socket 1 mV to 4 V (Rout = 10 Ω, RL >200 Ω) Stereo Multiplex Signal (option SM-B6) Stereo operating modes R, L, R = L, R = −L, ARI (pilot tone or MPX signal can be connected to LF socket) Frequency range of L, R signal 0.1 Hz to 15 kHz > **Important:** Overload protection against externally applied RF power (50 Ω source) and DC voltages: SMT02 and SMT03 ≤50 W / 35 V; SMT06 ≤1 W / 0 V. > **Important:** The Pulse Generator (option SM-B4) is available only in conjunction with a Pulse Modulator (SM-B3, SM-B8 or SM-B9). > **Important:** Broadband ϕM is only possible with ϕM2. ## About this Pre-Owned unit This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects. - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). 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.** ## Details - **Price:** 0.0 USD - 700.0 USD - **Vendor:** Rohde & Schwarz - **Type:** Rf Gen - **Tags:** Manufacturers, product_manual_group_1, Product_used, RF, Rohde & Schwarz, Signal Generators ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 490.00 USD | In stock | | NIST Traceable with Full Data | 560.00 USD | In stock | | ISO IEC 17025 Accredited | 700.00 USD | In stock | ## Images - Rohde & Schwarz SMT06 5 kHz to 6 GHz Signal Generator (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/smt06-rohde-schwarz-rf-generator-used) > Updated: 2026-06-27