B-1020

COAXIAL CABLE DRIVER & MATCHING AMPLIFIERS

FIBER OPTIC TRANSMISSION ALSO AVAILABLE

• Wideband: DC to over 30MHz
• Maximum Output: to 10V PK, 20V PK-PK
• Maximum Input: ±5V to ±200V PK-PK as required. Also to 900kV PK with Ross Voltage Divider
• Signal Isolation: 500,000 Ohm 450V PK
• Input Impedance: Up to 2 Megohms
• Load Impedance: 50 Ohm or greater
• Power Source: AC or Optional Battery
• Will drive over 500 Feet of Coaxial Cable

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Matching Amplifier
Model VDE-
Wideband: DC to over 30MHz

• Signal Input
  • 0 to ±50 volt peak differential.
  • (0-100V PK-PK) standard. Other available.
  • Peak common mode voltage that will not damage amplifier or distort the output.
    • 200 volt steady state
    • 450 volt transient
  • Impedance
    • 1.0 megohm in parallel with 10pF or 2.0 meghom in parallel with 15pF as ordered. 

• Signal Output
  • 0 to ±10 volts (20 volts PK-PK) into 50 ohm or greater load.
  • ±200mA. Peak Maximum load current.
  • Matching amplifier isolation of signal output from signal input is 500 kilohm in parallel with 20pF.
  • Gain / frequency. See figure #1 below
  • Undistorted output voltage swing. See figure #2 below
  • Square wave input. Rise and fall time<10ns.
  • Matching amplifier output is calibrated into a specified length of cable and a 50 ohm or greater load as specified by the customer.

• Power Requirements
  • 105V to 125V AC, 50/60Hz.
  • Power Consumption-5W.

• Environmental
  • Indoor.
  • 0 °C to +50 °C.

• Dimensions
  • 3 1/2” high x 7” wide x 8 3/8” deep.

• Miscellaneous
  • Red LED indicates power on.
  • Model VDE-Matching Amplifier includes cabinet, amplifier, 115 volt 50-400Hz power supply, cable and terminations as specified by the customer.
  • Power supply input isolated for 2000 volts.
  • Matching amplifier may also be used with other test equipment such as voltmeters, signal generators, recorders, etc.

• WARNING
  • MATCHING AMPLIFIER OUTPUT COAXIAL CABLE SHIELD IS NOTGROUNDED. FOR SAFETY, OUTPUT COAXIAL CABLE SHIELD SHOULD BE GROUNDED AT COAXIAL CABLE TERMINATING RESISTOR.
  • If output coaxial cable is connected to matching amplifier input ground or matching amplifier 115 volt ground, there may be excessive ground currents causing electrical noise in matching amplifier output.

• CAUTION
  • Do not subject output to reverse voltage.
  • External pickup from coaxial cables can easily exceed safe values if the cables are run near high pulse current conductors.
  • The matching amplifier, coaxial cable and coaxial cable terminating resistor are calibrated as a system.
  • If any of these are changed, the calibration, the high frequency response and the pulse response may change.

• Options On Request
  • Signal Input Variations Available:
    • Any maximum input voltage from ±0.5 to over ±250 volt with proper input range selected, to over 900kV when using Ross Engineering Corp. voltage dividers.
  • Signal Output Variations Available:
    • Coaxial cable lengths from 0 to 500 feet
  • Power Options Available:
    • Battery or DC operated. 115V, 208V, 240V 50-400Hz.
  • Environment Additional Requirements Available:
    • Outdoor
    • Transformer Oil
  • Miscellaneous Available:
    • Power on/off switch

  Specifications are for reference only and are subject to change.
Contact Ross Engineering Corp. for current information.