Antenna Measurement Systems
 
.pdf version
 
  NSI-RF-RTM

Range Transition Manager

 
DESCRIPTION

The NSI-RF-RTM Range Transition Manager automates the antenna range configuration; simplifying system operation and increasing throughput. The RTM allows the range operator to switch configurations without changing RF cable connections, thereby reducing errors and improving productivity.

The NSI-RF-RTM Range Transition Manager provides a wide range of options for automating any type of large or small antenna range by using the various RTM modules. These modules combine high quality RF components and switches to provide a flexible platform for a wide variety of antenna range configuration control.

The modules consist of switchable amplifiers, couplers, mixers, programmable step attenuators and other RF elements that may be combined in a variety of ways to create a highly automated antenna range.

 

FEATURES

  • Modular design supports high level of range automation requirements
  • 0.5 to 18.0 GHz (Higher frequency modules are available upon request)
  • Integrated test & reference mixers
  • Compatible with NSI Panther Receiver and Distributed Frequency Converter
  • Modules include mixers, amplifiers, step attenuators, 2nd LO mixer, coupler, switches and control
  • Test & ref mixers are identical and connect to DFC LO/IF unit with single cable
  • Test and reference LO cables do not have to be of the same length
  • Remote operation through standard LAN interface
  • RTM Dynamic Link Library is compatible with NSI2000 script language and can support stand alone applications
  • Includes easy-to-use RTMPanel software


RTM SYSTEM BLOCK DIAGRAM

(LO/IF cables not shown)

 
INCLUDES THE FOLLOWING
COMPONENTS

RTMPanel Software provides easy-to-use interface for RTM configuration and status monitoring.
  • NSI-RF-RTM Range Transition Manager
  • RTMPanel software
  • DLL for integration with other applications
  • Power supply & cord
  • User Guide and Programming Manual
  • One year warranty

    Modules Available:
  • Control
  • Transmit
  • Coupler
  • PSA
  • Receive
  • Test Mixer
  • Ref Mixer
  • 2nd LO Mixer
  • TxRx

    •  
    OPERATION

    The NSI-RF-RTM Range Transistion Manager communicates with a host computer using a LAN interface. The message-based protocol and object-oriented software provide a modular, easy-to-use environment for antenna range automation.

    The RTMPanel application provides a virtual front panel for the user to configure and monitor status of the RTM. Multiple RTMs in a system are easily controlled by the RTMPanel software. The NSIRTM.DLL software allows custom automation solutions to be developed for a wide range of platforms including NSI 2000 Scripts, VB and VBA.

    NSI-RF-RTM PERFORMANCE SPECIFICATIONS

    Frequency Range 0.5 to 18.0 GHz
    Minimum Mixer LO Power -20 dBm
    TX, RX Amplifier Gain 33 dB
    TX, RX Amplifier Pout +15 dBm
    TX, RX Amplifier NF 4 dB
    Minimum Mixer LO Power -20 dBm
    Programmable Step Attenuator 0 to 110 dB in steps of 1 dB
    Mixer Conversion Efficiency > 10 dB
    Mixer Compression > -24 dBm
    Mixer Sensitivity, S/N = 1 < -110 dBm
    Mixer Isolation, Ref to Test Channel > 100 dB
    RF Switch Isolation 90 dB
    RF Switching Time 15 ms
    RF Switch Cycles 5 million
    RTM Response Time (typ) 40 ms
    Software Interface RTMPanel software application and NSIRTM.DLL for custom programming
    Computer Interface LAN
    RF Connectors SMA female
    Size (HxWxD) 8.75" x 17.0" x 12.0"
    Weight (full unit) 40 lbs
    Power (24V power adapter included) 4.2 A @ 24 VDC
    Controls and Indicators DC power and error LED on each module

    ORDERING INFORMATION

    Contact the NSI Sales Department to configure an RTM system to meet your automation needs.

    Nearfield Systems, Incorporated
    19730 Magellan Drive,     Torrance, CA 90502, USA, Tel: 310.525.7000, Fax: 310.525.7102
    Email: sales@nearfield.com. Visit our website: www.nearfield.com