The 845-M is a wideband low phase-noise synthesizer operating up to 20 GHz. The module has a milli-Hz frequency resolution and uses a high-stability internal reference. The internal reference can be phase-locked to a programmable external reference.

The module has a USB and LAN interface and can be controlled using SCPI 1999 command sets. This small module operates with an external 6V DC supply and includes BNC’s SigGen GUI software package.

The Model 845-M is a wideband low phase-noise synthesizer operating from 10 MHz to 20 GHz. The nominal output power is +23 dBm. The module has a mili-Hz frequency resolution and uses a high-stability internal reference. The internal reference can be phase-locked to a user-settable external reference. For highest phase coherence, multiple Model 845-Ms can be cascaded with just one master reference clock. The Model 845-M offers dedicated sweeping capabilities with switching speeds of only 25 µs and wideband frequency modulation as well as narrow pulse modulation. The module has USB and LAN interfaces and can be controlled using the SCPI 1999 command set. Operated with an external 6V DC supply, it consumes less than 10 watts.

Berkeley BNC Model 845-M Series Multi-Channel RF Signal Generator 10 MHz 20 GHz

Quantity

Ordering Information
Please allow x - x weeks for this product to arrive.

This product comes with a x year(month) warranty.

Technical Specifications

Number of Channels	1 (standard) or 2 (with 845-M-X)
Frequency	Range: 0.01 to 20 GHz Resolution: 0.001 Hz Accuracy: 0.1 ppm
Output Power	+23 dBm
Switching Speed	180 µs (25 µs with option FS) *see dimensions below
Phase Noise (1 GHz CW)	1 kHz offset: -118 dBc/Hz 20 kHz offset: -128 dBc/Hz Wideband Noise: -150 dBc/Hz
Remote Control (SCPI v1999)	Ethernet, USB
Modulation	Pulse (Internal and External mode) and FM, Phase and Chirp (Internal mode only)
Sweeps	List, Frequency
Dimensions (W x L x H), Weight	845-M : 8.27" x 4.13" x 2.36 " [210 x 105 x 60 mm], 2.1lbs [0.95 kg] 845-M [ with option FS ]: 10.62" x 4.13" x 2.36 " [270 x 105 x 60 mm], 2.2lbs [1 kg] 845-M-X : 19inch 1U Rackmount enclosure 16.8" x 18.1" x 1.7" [426 x 460 x 43 mm], 10 lbs [4.5 kg]

Features and Applications
Features
- Low Phase Noise
- Fast Switching
- Wideband DC Frequency Modulation
- Internal OCXO Reference
- Single 6V DC Supply
- Small Footprint
Applications
- ATE
- LO for Frequency Converters
- Telecom / SatCom
- Embedded Systems
- OEM Microwave Signal Source
Options & Accessories
OPTIONS

FSUltra-Fast Switching Speed1URM19" 1U Rackmount enclosureVREFVariable External Reference Input (support clock frequency from 1 to 250MHz with 1MHz steps)GPIBGPIB interface (required option 1URM)