LBC-4000 Up/Down Converter System

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LBC-4000 Up/Down Converter System

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  • Meets or exceeds MIL-STD-188-164A
  • Low phase noise
  • 1 kHz step size
  • Field selectable spectral inversion
  • 50 dB gain adjustment
  • Flexible configuration

  • Description
  • Technical Specifications
  • Support Documents

Overview

The LBC-4000 Up/Down Converter System is an L-Band IF to 70 MHz IF (140 MHz optional) indoor converter. It is packaged in a 1RU 19-inch chassis with two front panel accessible up converter or down converter modules. It contains two diode “OR-ed” internal power supplies for increased reliability and microprocessor-based Monitor & Control (M&C) functions.

The LBC-4000 up converter module translates a 70 MHz IF input signal (140 MHz optional) up to a user-selected frequency at L-Band (950 to 2000 MHz). The L-Band output can drive the input of our MBT-4000 block up converter or other RF equipment with an L-Band input.

The LBC-4000 down converter module translates an L-Band (950 to 2000 MHz) IF input signal down to a user selected frequency in the 70 MHz (140 MHz optional) IF band. The LBC-4000 can be locked to an internal reference or an external 5 or 10 MHz reference signal. The LBC-4000 is an excellent choice for interfacing legacy 70 or 140 MHz equipment to quad-band or tri-band block converters.

Details

  • Meets or exceeds MIL-STD-188-164A
  • Low phase noise
  • 1 kHz step size
  • Field selectable spectral inversion
  • 50 dB gain adjustment
  • 70 ±18 MHz IF (140 ± 36 MHz optional)
  • Flexible configuration
  • Auto band sensing capability
  • Redundant option available

LBC-4000 L-Band Down Converter IDU
Input Frequency Range 950 to 2000 MHz, 1 kHz steps
Output Frequency 70 ± 18 MHz (140 ± 36 MHz optional)
Input/Output Impedance 50 Ω
Input Return Loss 15 dB minimum
Output Return Loss 20 dB minimum
Input Connector Type N, Female
Output Connector BNC, Female
Gain 35 dB nominal at min. attenuation
Ripple ± .5 dB over any ± 18 MHz for 70 MHz IF units
± .5 dB over any ± 36 MHz for 140 MHz IF units
Slope .05 dB/MHz
User Attenuation Range 0 to 40 dB, in 0.10 dB steps
Output Power, P1dB +13 dBm minimum
Third Order Intercept +23 dBm minimum
Carrier Spurious -60 dBc
Non-Carrier Spurious -60 dBm
Stability Over Time ± 1 x 10-9 /Day
Stability Over Temp ± 1 x 10-8 32° to 122°F (0° to 50°C)
LBC-4000 L-Band Up Converter IDU
Input Frequency 70 ± 18 MHz (140 ± 36 MHz optional)
Output Frequency 950 to 2000 MHz, 1 kHz steps
Input/Output Impedance 50 Ω
Input Return Loss 18 dB minimum
Output Return Loss 15 dB minimum
Input Connector BNC, Female
Output Connector N Female
Gain 25 ± 1 dB nominal at minimum attenuation
Ripple ± .5 dB over any ± 18 MHz for 70 MHz IF units
± .5 dB over any ± 36 MHz for 140 MHz IF units
Slope .05 dB/MHz
User Attenuation Range 0 to 50 dB, in 0.10 dB steps
Input Power Level To +10 dBm, maximum
Output Power, P1dB +10 dBm minimum
Third Order Intercept +20 dBm minimum
Carrier Spurious -60 dBc
Non-Carrier Spurious -75 dBm
Transmit Phase Noise Exceeds MIL-STD-188-164A
Stability Over Time ± 1 x 10-9 /Day
Stability Over Temp ± 1 x 10-8 32 to 122°F (0° to 50°C)
(View our PDF Datasheet for more information)

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