As cable modems become more readily available so does the need to calibrate and test their operational performance. Aeroflex / Weinschel's cable modem testing solution starts with the design and manufacturing of 75 ohm subsystems that offer:

• Multi-channel inputs and outputs with front or rear panel connector
  mounting options.
• Operation over the dc to 1 GHz frequency range.
• IEEE-488, Serial or Ethernet (SNMP option) Interface for computer control.
• Wide dynamic range by employing Attenuator / Weinschel SmartStep Attenuators.
• Custom Mechanical Design & Layout.

Example subsystems have included::

• 800-1900 MHz frequency range.
• 8 Input Channels to 1 Output Channel.
• IEEE-488 Interface.
• Standard BNC Connectors.
• Wide Dynamic Range: 63/1 dB steps, 75 ohm.
• Aeroflex / Weinschel 3250T Programmable Attenuators.
  

Subsystem Overveiw with Block Diagram!

For convenience, Aeroflex / Weinschel also offers standard 75 ohm attenuator units (8310-1-X) that operates over the dc-1 GHz frequency range and provides an adjustable attenuation range of
0-63 dB in 1 dB steps.

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