--- title: "Model 866-M | 1 MHz to 40 GHz Compact Frequency Synthesizer" date: 2025-01-05T09:22:00Z modified: 2026-02-05T16:19:11Z permalink: "https://www.berkeleynucleonics.com/model-866-m-1-mhz-40-ghz/" type: page status: publish excerpt: "" wpid: 19455 --- [ ![](https://www.berkeleynucleonics.com/wp-content/uploads/bnc_academy_upper_banner.png) ](https://academy.berkeleynucleonics.com/) [](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_front_tilt.png) ![Model 866_Front Tilt](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_front_tilt.png) [](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_side.png) ![Model 866_Side 1](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_side.png) [](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_connectors.png) ![Model 866_Side 2](https://www.berkeleynucleonics.com/wp-content/uploads/images/products/model_866_connectors.png) - [ Quote ](/get-quote/?interested_product=Model%20866-M%20|%201%20MHz%20to%2040%20GHz) - [ Contact ](/contact-us/) - [ Datasheet ](#technical-resources-section) - [ Price List ](/access-pricelist/) - [ LabVIEW ](/bnc-labview-driver-list/) #### Model 866-M | 1 MHz to 40 GHzCompact Frequency Synthesizer BNC’s Model 866-M frequency synthesizer features a frequency range of 1 MHz to 40 GHz, an output power range of -10 to 25 dBm, and switching time of 85 μs. The SSB phase noise is -145 dBc/Hz when using a 20 kHz offset from a 1 GHz carrier, and -125 dBc/Hz when using a 10 GHz carrier. The resolution is 1 mHz for frequency, 0.1° for phase, and 0.5 dB for power. The frequency accuracy is calibrated to ±30 ppb, and the temperature stability is within ±100 ppb for the operating temperature range of 0°C to 50°C. The synthesizer is a compact, flange-mountable, well-shielded module that weighs about 1.3 lb \[ <0.6 kg \], measures 6.5 x 2.4 x 1 \[165 x 60 x 26 mm\], and consumes about 20 W of power. It cools itself passively. It has an Ethernet connection connector for connecting to a PC and can be controlled via graphical software or SCPI instructions. The Model 866-M supports external references at one GHz and one hundred MHz. Multiple units can be coupled to form multi-channel, phase-coherent sources. The main 1 GHz reference frequency can be produced by one device and looped to the others. Phase-coherence over a 5-hour period is around ±0.5 degrees with all channels running at 5 GHz. A system clock can be made up of just one device. Applications like radar, electronic warfare, beamforming, and quantum computing that call for a controlled phase difference over multiple channels are a good fit for this wideband, quick switching synthesizer. ##### [Features](#features-section) ##### [Specifications](#specifications-section) ##### [Options](#options) ##### [Tech Resources](#technical-resources-section) ##### [Media](#media-section) ##### [Downloable Resources](#downloadable-section) ##### [Price List](#pricelist-section) #### Overview ##### Features - Small size flange-mount module - CW and Pulse Modulation - Low power consumption as low as 23 W, passive cooling - Low phase noise - Multi-channel configurable / cascadable: Master-slave connection through 100 MHz or 1 GHz reference loop-through - Phase coherent ##### Applications - System clock source - Multi-channel phase-coherent configurations for radar signal generation and testing - Quantum computing: as RF LO for IQ mixers and parametric amplifier pumping - Electronic Warfare - Spectroscopy #### Specifications Number of channels 1 (can be link up with other 866-M for multi-channel phase-coherent sources) Frequency Range 1 MHz to 40 GHz Frequency Resolution 0.001 Hz Output Power -10 to +25 dBm (see power graph) Switching Speed 500 µs (85 µs with Option FS) Reference Input 100 MHz, 1 GHz Reference Output 100 MHz, 1 GHz Remote Control (SCPI v1999), Ethernet Dimensions (W x L x H), Weight 2.36 x 5.9 x 1.02 in \[60 x 150 x 26 mm\] , ~1.3 lbs \[≤0.6 kg\], Including connectors: 3.74 x 6.5 x 0.95 in \[60 x 165 x 26 mm\] Power Supply 24 VDC (AC adapter included) #### Options FS Fast Switching speed DATA Calibration Test data #### Technical Resources [ Part Numbering - RF Synthesizer](https://www.berkeleynucleonics.com/download/21511/?tmstv=1778700938) [ BNC Model 866-M Frequency Synthesizer Datasheet v105](https://www.berkeleynucleonics.com/download/26025/?tmstv=1778700938) #### Downloadable Resources 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) #### Media ## 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 #### Price Lists [ Berkeley Nucleonics Price List 2026](https://www.berkeleynucleonics.com/download/19881/?tmstv=1778700938) [ ![](data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1105 100'%2F%3E) ](https://academy.berkeleynucleonics.com/)