Model 845

Microwave Signal Generatorsand RF Signal Generators from 100 KHz to 12, 20, & 26.5 GHz

Berkeley Nucleonics' Model 845 RF Microwave Signal Generator is a low-noise and fast-switching microwave signal generator covering a frequency range from 100 kHz up to 26.5 GHz. The Model 845 Microwave RF Signal Generator offers a wide and accurately-levelled output power range with high spurious suppression. Advanced frequency synthesis with fractional-N divider makes for low SSB phase noise and micro-Hz frequency resolution.

The Model 845 is now available in 12, 20, & 26.5 GHz frequencies. In addition, the Model 845 can be customized and configured to each user's specific needs. Available with HP (high output power), LO (CW only, no modulation - only available on 20 GHz & 26.5 GHz), & R (1U rack mountable configuration).


  • Frequency and power switching time down to 10us
  • Exceptional phase noise performance:
    • 500MHz at 1KHz offset: -131 dBc/Hz
    • 4GHz at 1KHz offset: -115 dBc/Hz
    • 20GHz at 1KHz offset: -100 dBc/Hz
  • Adjustable output power from -90dBm to +27dBm
  • Powerful triggering and sweep modes
  • USB, LAN, GPIB interfaces
  • Comprehensive analog modulation capabilities or only CW/LO
  • Compact, robust, and portable with internal rechargeable battery options
  • Phase-locking to any external reference from 1 to 250 MHz
  • ATE
  • R&D low noise signal source
  • Production testing (industry-leading switching times; high dynamic range)
  • Service and maintenance (battery operation)
  • Signal simulation (radar, WiMax, UWB)
  • Aerospace and defense (pulse modulator, chirps)
  • HP: High Output Power
  • LO: CW only, no modulation
  • R: 1U Rackmount configuration
  • PE: Power range extension to -90 dBm
  • FS: Substantially reduces the switching speed 10us
  • RB: Internal battery (Not Available with -R)
  • G: GPIB interface added (Not available with RB)
  • LN: Ultra Low Phase Noise
  • OEM: Custom OEM System Integration
  • P/N7091: 19" 3U dual rack mount kit for Model 835 / 845
  • WE3: Warranty extension to 3 years
  • WE5: Warranty extension to 5 years
New Features in the Model 845 Series

Option R - 1U Rackmount Configuration

New Features in the Model 845 Series

Option HP - High Power - Output power enhanced up to +27 dBm

Option LO - No Modulation - CW only, no modulation - (only available on 20 GHz & 26.5 GHz)

The Model 845 Microwave RF Signal Generator also includes AM, DC-coupled, low distortion wideband-FM, PM, FSK and PSK, frequency chirp, and fast pulse modulation with internal pulse train generator as standard. Three internal modulation sources are available. All modulation modes of the Model 845 can be combined. This allows the generation of complex modulation signals for modern communication and location systems.

The Model 845 is ideally suited for applications where a high-quality CW microwave source with analog modulation is required. The Model 845 operates with an ultra-stable temperature compensated 100 MHz reference (OCXO) and can be phase-locked to any external reference from 1 to 250 MHz. Additionally, The combination of pulse modulation and FM simulates Doppler effects or chirp signals. Simultaneous AM and pulse modulation provides the types of signal occurring in pulse radar applications with rotating antenna. The combination of FM and AM can be used to check fading effects of FM receivers.

The Model 845 operates on line or battery power making it useful for field applications or large laboratories. Although the Model 845 Microwave / RF Signal Generator introduces the smallest footprint in its class, it clearly can fill the largest shoes!

BNC SigGen GUI (included with each shipment) below –

Software, firmware and drivers

Software, firmware and drivers are available to our registered users. To view pricing for this and other products, please log in or create a free account.


Video URL 
Video title 
BNC Model 845, 20GHz Microwave Source, List Sweep Functions

Price List

Price lists are available to our registered users. To view pricing for this and other products, please log in or create a free account.