WORK Microwave VSBU/VSBD L-Band Block Up- and Downconverter

  • Three indoor unit types are available
  • Low phase noise
  • Adjustable attenuator
  • Gain slope Equalizer available
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WORK Microwave VSBU/VSBD L-Band Block Up- and Downconverter

WORK Microwave’s Block Converters are designed to optimize the performance and bandwidth of satellite communications links, enabling operators to cost effectively deliver a superior signal quality. Ideal use cases include fixed satellite ground stations as well as in satellite newsgathering (SNG) vehicles, fly-aways and other mobile or portable applications.

The fifth-generation frequency converter series is built with the most advanced technologies available to ensure outstanding performance, high reliability and a longer lifetime.

5th-generation enhancements

Reduced phase noise: Based on a powerful new synthesizer the frequency converters achieve a phase noise significantly beyond the recommended industry specification (Intelsat's IESS-308/309).

Optional slope compensation up to +8 dB / GHz over L-band: With slope compensation users can effectively balance the losses and negative slope of augmented cable runs to ensure that all signals entering the RF processing chain are at similar levels across all frequencies.

Improved flexibility and usability: Through a new USB port, operators can now access the converter via the back panel to make copies of parameter settings, replicate selected configurations on another device or save configuration settings for future reference. In addition, a user-friendly, Web-based interface offers an intuitive user experience. When coupled with the enhanced USB port, the customizable GUI also simplifies the installation of firmware updates.

Higher reliability: An AC power consumption of typically 35 VA / 20 W maximizes the reliability and lifetime of the units.

High signal integrity

The very low phase noise of the oscillators guarantees an excellent signal quality. Low spurious emissions allow our customers to use the converters in the environments with demanding requirements, such as high power video uplinks. Sophisticated temperature compensation guarantees the stability over a wide temperature range.

Housing options

The converters normally are delivered without fans and can be operated in environments, where at minimum one RU space for natural ventilation is available above each unit. This eliminates the fan as a potential point of failure. For rack installations without any space in between the units, a fan within the converter unit is recommended. This forces airflow from the right side to left side of the units. Outdoor versions with IP 67 degree of protection are also available.

The converters can be operated via the push buttons on the front panel using intuitive display menus or via remote control (RS232, RS422/485, TCP/IP over Ethernet). Detailed monitoring of the system status and a summary alarm output (dual change over switch contacts) are provided. For the remote control either ASCII string-based commands as well as addressable, packet-based commands are provided.

Remote monitoring and control through SNMP and a Web browser interface is also available.

Customized products

In addition to standard products WORK Microwave offers custom tailored products and specialized products as follows:

  • Modified or smaller housings to fit into your AC power switch on the front panel
  • Existing design for mobile and portable applications.
  • Different IF or RF frequency bands
  • Customized M&C interface and control syntax.
  • Extended storage or operating temperature range.
  • Military versions for hostile environment (shock, vibration, humidity).

Key Features

  • Three indoor unit types are available:
    VSBU* Type – with front panel commands
    VSBUL* Type – attenuator selector on front panel
    VSBUR* Type – remote control operation only
    *VSBD, VSBDR, VSBDR also
  • Low phase noise
  • Adjustable attenuator (typ. range: 0 … 20 dB or 0 … 30 dB, 0.1 dB step size)
  • Gain slope Equalizer available
  • Output power +10 dBm (1 dB compression point)
  • Low spurious emissions
  • Internal OCXO with long term stability 10-7 / year
  • External reference input 5 or 10 MHz
  • Local control through push buttons on front panel and display menu
  • Stored alarms with time stamps
  • Reference output 10 MHz
  • Remote control through RS232, RS422/485 (2-wire or 4-wire) interfaces. Packet command syntax supports RS485 bus systems and allows addressed operation. TCP/IP over Ethernet, Web browser interface, SNMP with MIBs downloadable form the device
  • Summary alarm output (DPDT)
  • Low power consumption, typically less than 20 W
  • CE compliant
  • Up to 4 channels / frequency bands per unit are possible
  • 3 years warranty
More Information
Weight 14.0000
Country of Manufacture Germany
Manufacturer Work Microwave
Input Power 90 - 264 VAC
Prime Frequency L-Band
Input Frequency 3.4 - 4.2 GHz, 5.85 - 6.425 GHz, 7.25 - 7.75 GHz, 10.7 - 11.7 GHz, 10.95 - 11.70 GHz, 11.55 - 12.75 GHz, 11.7 - 12.75 GHz, 12.25 - 12.75 GHz
Output Frequency 13.75 - 14.5 GHz
LO Frequency 4.83 GHz, 4.9 GHz, 5.15 GHz, 6.30 GHz, 6.950 GHz, 7.55 GHz, 9.75 GHz, 10.0 GHz, 10.6 GHz, 10.75 GHz, 11.30 Ghz, 11.8 GHz, 11.95 GHz, 12.800 GHz
Dimensions Indoor housing 483 x 44 x 270 mm Outdoor Housing 322 x 108 x 391 mm3 (WxHxD) (small housing) (standard) 402 x 111 x 391 mm3 (WxHxD) (large housing) 412 x 74 x 515 mm3 (WxHxD) (XL housing)
Warranty 3 Years
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You're reviewing:WORK Microwave VSBU/VSBD L-Band Block Up- and Downconverter
101 Eagle Road Building 7. Avon, Colorado. 81620.
T : (970)-748-4250.