Attenuator Subsystems come in user-defined configurations.

Press Release Summary:



Subsystems provide controlled attenuation of RF signals for test and installed systems for analog and digital applications. Attenuator module bandwidth extends from dc to 2.3 GHz and can be designed over specific or maximum range. Modules include signal attenuators for level control and can be controlled locally or remotely. Available in simplex, duplex, and single and multiple network configurations, products offer 128 dB attenuation control in 1 dB steps.



Original Press Release:



Delaire USA Offers RF Network Attenuator Subsystems



Manasquan, New Jersey, November 1, 2004: Delaire USA, Inc. introduces RF Network Attenuator Subsystems that are designed to provide controlled attenuation of RF signals for test and installed systems for analog and digital applications. These subsystems are part of Delaire's family of RF subsystems that provide a range of products that can be selected depending on the particular needs of the customer. The attenuator module bandwidth extends from DC to 2.3 GHz. The bandwidth can be designed over a specific range or over the maximum range depending on the subsystem selected. The modules include signal attenuators for level control. Applications include RF signal power level adjustment in test equipment and in service equipment. Local or remote computer control of the attenuators is available. The computer control interface is implemented via RS232, RS-422, RS-485, or IEEE488. The characteristic impedance of the standard system is 50 ohms (75 ohms is also available). Connector type can be specified. BNC, SMA and other RF connectors are available. Network attenuator options include 1 Sector, 3 Sector, Simplex, Duplex, Dual Duplex, Single Network and Multiple Network configurations.

Applications
o Automated test and measurement
o Signal monitoring and routing applications
o Satellite and antenna monitoring
o Test instrumentation
o Cellular/PCS

Features
o 128 dB attenuation control in 1 dB steps
o Versatile design allows easy modifications at customer's request
o Serial or IEEE-488 interface for computer control
o Customer defined configurations, layout and packaging
o Simplex, duplex and single and multiple network configurations
o Customer specified bandwidth and signal level range
o Exceptional repeatability
o Excellent isolation
o Solid-State designs available
o Customer specified testing and calibration can also be supplied

Specification Table of Standard Products (customer configurations on request):
   Parameter                   P/N              P/N              P/N
Frequency Range 403 to 524 MHz 1.7 to 2.3 GHz 820 to 960 MHz
Attenuation Range 128 dB 128 dB 128 dB
Attenuation Step 1 dB 1 dB 1 dB
Isolation @ 1 GHz >18 dB >18 dB >18 dB
Insertion Loss <10 dB <10 dB <10 dB
VSWR, f < 1 GHz 1.6:1 1.6:1 1.6:1
Max Signal (average) 1 W 1 W 1 W
Controller Supply Voltage 12-15 V 12-15 V 12-15 V
Supply Current 250 mA (max) 250 mA (max) 250 mA (max)
Power Connector 2.5 mm DC Jack 2.5 mm DC Jack 2.5 mm DC Jack
Control Method* RS232 Interface RS485/RS422 IEEE 488 Interface
Interface
Control Connector DB 9 (male) DB 9 (male) DB 9 (male)
Size (in.) 18 x 17 x 3 18 x 17 x 3 18 x 17 x 3

* RS485/RS422 and IEEE488 Control Available

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