Chapter 1 35
Overview
Replacement Assemblies
• A27 Electronic Attenuator (option B7J)
• A29 SBTX/FELOMA Driver Board (43 to 50 GHz models)
• A30 FIFA (43 to 50 GHz models)
• A31 Wideband Analog IF assembly (Option 122 or 140)
• A32 Wideband Digital IF assembly (Option 122 or 140)
• A33 70 MHz Output assembly (Option H70)
• A34 Unpreselected Mixer (Option 123)
• A35 Unpreselected Mixer Bias Board
• A36 Microwave or Millimeter Wave Preamplifier
• A37 Audio Digitizer Assembly
• A38 Option Driver Assembly
• A39 USB/Memory Board
NOTE Procedures for replacing assemblies are located in Chapter 11,
“Assembly Replacement Procedures,” on page 305.