--- title: "Model 871 | 1 kHz to 12.75, 20, 40 and 51 GHz Single or Multi Channel Signal Generator" date: 2024-12-13T08:49:00Z modified: 2026-02-25T21:51:42Z permalink: "https://www.berkeleynucleonics.com/model-871-1-khz-1275-20-40-and-51-ghz/" type: page status: publish excerpt: "" wpid: 18543 --- [ ![](https://www.berkeleynucleonics.com/wp-content/uploads/rf_signal_generators_configurator_banner_4.png) ](/rf-signal-generators-standard-and-custom-versions-available) [](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_flat_web2.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_flat_web2.jpg) [](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_dim_web.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_dim_web.jpg) [](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_tilt_web.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/871_front_tilt_web.jpg) [](https://www.berkeleynucleonics.com/wp-content/uploads/870-871-875_back_flat_web_02.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/870-871-875_back_flat_web_02.jpg) [](https://www.berkeleynucleonics.com/wp-content/uploads/870-871-875_back_tilt_web_0.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/870-871-875_back_tilt_web_0.jpg) [](https://www.berkeleynucleonics.com/wp-content/uploads/multi-channel_front_pannel_both2.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/multi-channel_front_pannel_both2.jpg) CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75[](https://www.berkeleynucleonics.com/wp-content/uploads/multi-channel_rear_pannel_both2.jpg) ![Single or Multi Channel Signal Generator 871](https://www.berkeleynucleonics.com/wp-content/uploads/multi-channel_rear_pannel_both2.jpg) CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 75- [ Quote ](/get-quote/?interested_product=Model%20871%20|%201%20kHz%20to%2012.75,%2020,%2040%20and%2051%20GHz) - [ Contact ](/contact-us/) - [ Datasheet ](#bnc-tab-technical-resources) - [ Price List ](/access-pricelist/) - [ RF Selection Guide ](/ProductSelection/) - [ LabVIEW ](/bnc-labview-driver-list/) #### Model 871 | 1 kHz to 12.75, 20, 40 and 51 GHz Single or Multi Channel Signal Generator The Model 871 series provides phase-coherent signal generation with configurations tailored for applications requiring precise power control, consistent multi-channel phase alignment, and clean output signals. Available in single- or multi-channel setups covering 1 kHz to 20 GHz, 40 GHz, or 51 GHz, this RF microwave signal generator supports ultra-fast switching and low phase noise performance. - **Frequency & Phase Performance**: Covers 1 kHz to 51 GHz with 10 μs switching speed, strong spurious and harmonic suppression, and superior phase noise. - **High-Stability Reference**: Built-in OCXO for accurate frequency control; accepts external references from 1–250 MHz, plus standard 10/100 MHz inputs for synchronization. - **CLK Ports for Synchronization**: Two 3 GHz high-frequency clock ports (one input, one output) enable tight phase alignment across multiple instruments. - **Enclosure Options**: 19-inch 2U rack-mountable chassis for up to 4 channels, or compact desktop version for single-channel use. - **Control & Integration**: Operates via PC GUI software; supports LAN, USB, and GPIB interfaces with SCPI 1999 command set. Includes programming examples for MATLAB, LabVIEW, C++, and other tools, plus a customer-accessible API for custom integration. This phase-coherent RF microwave generator is suited for applications such as phased-array radar testing, beamforming networks, MIMO system validation, electronic warfare simulation, and multi-channel receiver development where stable phase relationships and clean signals are required across channels. Overview Configurator Specifications Technical Resources Downloadable Resources Media Price Lists FAQ ##### Applications - ATE - Production Testing - R&D Low Noise Signal Source - Signal Simulation - Defense & Aerospace - Service and Maintenance ##### Features - Wide and Accurately Leveled Output Power Range - Fast Switching of 10 µs (option FS) - Outstanding Phase Noise, Harmonic, and Spurious Performance - Sweep, Trigger Function, and User-programmable External Reference Frequency from 1 to 250 MHz - Low Power Consumption - Powerful Touch-Display Control - Portable / Bench-Top or Rack Mountable Housing Form #### Model 871 SIGNAL GENERATOR CONFIGURATOR input[type='checkbox'], input[type='radio'] { display: inline !important; appearance: checkbox !important; width: auto !important; margin-right: 5px; margin-bottom: 5px; } .tables-no-border-and-back, .tables-no-border-and-back td, .tables-no-border-and-back tr { border: 0 !important; background-color: transparent !important; } .option-list label { display: block; margin-bottom: 5px; } .option-list input:disabled + span { color: #888; } | **Number of Channels:** | 1 Channel 2 Channels in 2U Rackmount 3 Channels in 2U Rackmount 4 Channels in 2U Rackmount | | --- | --- | | **Frequency Range:** | 10 MHz to 12.75 GHz 10 MHz to 20 GHz 10 MHz to 40 GHz 10 MHz to 51 GHz | | **Options:** | \[-LN\] Enhanced Close-In Phase Noise \[-LN plus\] Low Noise + Long-Term Stability \[-1k\] Frequency Extension down to 1kHz \[-MOD\] Analog Modulation \[-VREF\] Variable Reference \[-PULSE\] Pulse Modulation \[-PHS\] Phase Coherent Switching \[-PE2\] Mechanical Step Attenuator down to -120 dBm (per channel) \[-PE2-50\] Mechanical Step Attenuator down to -110 dBm (per channel) \[-GPIB\] GPIB Port \[-FLASH\] MicroSD Card Slot \[-RM\] 2U Rackmount Chassis | | INQUIRE | | **Frequency Range** **871-12:** 10 MHz to 12.75 GHz **871-20:** 10 MHz to 20 GHz **871-40:** 10 MHz to 40 GHz **871-50:** 1 kHz to **\***51 GHz **\*Option 1K:** 1 kHz to fmax **Resolution** <0.001 Hz **Power Range** -120 to +20 dBm **Power Resolution** 0.01 dB **Switching Speed** 10 µs **Remote Control** Ethernet, USB (standard), GPIB optional **Modulation** Pulse & CW AM, FM, PM (with MOD Option) **Sweeps** Frequency, List, Phase, Power **Dimensions (W x D x H) / Weight** Benchtop: 9.1 x 15.5 x 3.8 in / ≤22 lbs \[Desktop\] Rackmount : 17.5 x 23.4 x 3.5 in / ≤ 39.7 lbs \[1U Chassis\] [ App Note – Pulse Descriptor Word for VSG](https://www.berkeleynucleonics.com/download/21230/?tmstv=1772056302) [ Press Room – Ferromagnetic Resonance Research](https://www.berkeleynucleonics.com/download/21583/?tmstv=1772056302) [ Press Room – Multichannel Signal Generators And Local Oscillators](https://www.berkeleynucleonics.com/download/21456/?tmstv=1772056302) [ RF / Microwave To Optics Generation And Conversion](https://www.berkeleynucleonics.com/download/21259/?tmstv=1772056302) [ Model 871 Datasheet v1.0](https://www.berkeleynucleonics.com/download/34196/?tmstv=1772056302 "Version 1 (updated)") Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our [downloads page](/downloads). - [Product Datasheets](/downloads#rf-datasheets) - [Product Firmware](/downloads#rf-firmware) - [Product Software and Drivers](/downloads#rf-softwaredrivers) - [Product Manuals](/downloads#rf-manuals) ## Playlist ![Ultimate Guide! The Perfect RF & Microwave Signal Generator](https://img.youtube.com/vi/XIq4aKUcbDQ/maxresdefault.jpg) #### Ultimate Guide! The Perfect RF & Microwave Signal Generator 47:26 [ Berkeley Nucleonics Price List 2026](https://www.berkeleynucleonics.com/download/19881/?tmstv=1772056302) [ A](#) #### RF Configuration Options | What are the differences between LN and LN+? The key difference between LN and LN+ is that LN+ will have better long-term performance—for example, a better Allan variance for a longer time. For short-time performance, they are identical. Here’s another example…Option LN adds a 100 MHz OCXO on the ref board, applying to all channels. Option LN+ will do the same. The only difference is that the OCXO will have better long-term stability. You can incorporate either LN or LN+. Options can’t be combined and priced per unit. ##### Applications - ATE - Production Testing - R&D Low Noise Signal Source - Signal Simulation - Defense & Aerospace - Service and Maintenance ##### Features - Wide and Accurately Leveled Output Power Range - Fast Switching of 10 µs (option FS) - Outstanding Phase Noise, Harmonic, and Spurious Performance - Sweep, Trigger Function, and User-programmable External Reference Frequency from 1 to 250 MHz - Low Power Consumption - Powerful Touch-Display Control - Portable / Bench-Top or Rack Mountable Housing Form #### Model 871 SIGNAL GENERATOR CONFIGURATOR input[type='checkbox'], input[type='radio'] { display: inline !important; appearance: checkbox !important; width: auto !important; margin-right: 5px; margin-bottom: 5px; } .tables-no-border-and-back, .tables-no-border-and-back td, .tables-no-border-and-back tr { border: 0 !important; background-color: transparent !important; } .option-list label { display: block; margin-bottom: 5px; } .option-list input:disabled + span { color: #888; } | **Number of Channels:** | 1 Channel 2 Channels in 2U Rackmount 3 Channels in 2U Rackmount 4 Channels in 2U Rackmount | | --- | --- | | **Frequency Range:** | 10 MHz to 12.75 GHz 10 MHz to 20 GHz 10 MHz to 40 GHz 10 MHz to 51 GHz | | **Options:** | \[-LN\] Enhanced Close-In Phase Noise \[-LN plus\] Low Noise + Long-Term Stability \[-1k\] Frequency Extension down to 1kHz \[-MOD\] Analog Modulation \[-VREF\] Variable Reference \[-PULSE\] Pulse Modulation \[-PHS\] Phase Coherent Switching \[-PE2\] Mechanical Step Attenuator down to -120 dBm (per channel) \[-PE2-50\] Mechanical Step Attenuator down to -110 dBm (per channel) \[-GPIB\] GPIB Port \[-FLASH\] MicroSD Card Slot \[-RM\] 2U Rackmount Chassis | | INQUIRE | | **Frequency Range** **871-12:** 10 MHz to 12.75 GHz **871-20:** 10 MHz to 20 GHz **871-40:** 10 MHz to 40 GHz **871-50:** 1 kHz to **\***51 GHz **\*Option 1K:** 1 kHz to fmax **Resolution** <0.001 Hz **Power Range** -120 to +20 dBm **Power Resolution** 0.01 dB **Switching Speed** 10 µs **Remote Control** Ethernet, USB (standard), GPIB optional **Modulation** Pulse & CW AM, FM, PM (with MOD Option) **Sweeps** Frequency, List, Phase, Power **Dimensions (W x D x H) / Weight** Benchtop: 9.1 x 15.5 x 3.8 in / ≤22 lbs \[Desktop\] Rackmount : 17.5 x 23.4 x 3.5 in / ≤ 39.7 lbs \[1U Chassis\] [ App Note - Pulse Descriptor Word for VSG](https://www.berkeleynucleonics.com/download/21230/?tmstv=1778700933) [ Press Room - Ferromagnetic Resonance Research](https://www.berkeleynucleonics.com/download/21583/?tmstv=1778700933) [ Press Room - Multichannel Signal Generators And Local Oscillators](https://www.berkeleynucleonics.com/download/21456/?tmstv=1778700933) [ RF / Microwave To Optics Generation And Conversion](https://www.berkeleynucleonics.com/download/21259/?tmstv=1778700933) [ BNC Model 871 Signal Generator Datasheet v1.0](https://www.berkeleynucleonics.com/download/34196/?tmstv=1778700933 "Version 1 (updated)") Downloadable resources such as datasheets, firmware, software, drivers and products manuals. Alternatively, you can browse resources directly by visiting our [downloads page](/downloads). - [Product Datasheets](/downloads#rf-datasheets) - [Product Firmware](/downloads#rf-firmware) - [Product Software and Drivers](/downloads#rf-softwaredrivers) - [Product Manuals](/downloads#rf-manuals) ## Playlist ![Ultimate Guide! The Perfect RF & Microwave Signal Generator](https://img.youtube.com/vi/XIq4aKUcbDQ/maxresdefault.jpg) #### Ultimate Guide! The Perfect RF & Microwave Signal Generator 47:26 [ Berkeley Nucleonics Price List 2026](https://www.berkeleynucleonics.com/download/19881/?tmstv=1778700933) [ A #### RF Configuration Options | What are the differences between LN and LN+? ](#) The key difference between LN and LN+ is that LN+ will have better long-term performance—for example, a better Allan variance for a longer time. For short-time performance, they are identical. Here’s another example…Option LN adds a 100 MHz OCXO on the ref board, applying to all channels. Option LN+ will do the same. The only difference is that the OCXO will have better long-term stability. You can incorporate either LN or LN+. Options can’t be combined and priced per unit. [ ![](data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1105 130'%2F%3E) ](/products/microwave-rf-signal-generators)