Silicon Investigations Repair Service

  Discontinued IFR/Marconi/Aeroflex Equipment Repair, Service and Software

Attention: Silicon Investigations no longer services IFR/Aeroflex analyzers.  Service is now being handled by Custom-Cal.  Contact 888-530-9009 or follow this link: Custom-Cal

Custom Cal

Information on the various IFR/Aeroflex models is still available in the following links:

IFR/Aeroflex/Marconi COM 120 Information
IFR/Aeroflex/Marconi 920 Spectrun Analyzer Service Information
IFR/Aeroflex/Marconi 1200 & 1200S Spectrum Analyzer Service Information
IFR/Aeroflex/Marconi 1500 Spectrum Analyzer Service Information
IFR/Aeroflex/Marconi 1600 Spectrum Analyzer service Information

IFR/Aeroflex/Marconi 1900 Spectrum Analyzer Service Information

IFR/Aeroflex/Marconi 2390 Spectrum Analyzer Service Information
IFR/Aeroflex/Marconi A-7550 Spectrum Analyzer Service Information
IFR/Aeroflex/Marconi MLS800 Microwave Landing System Simulator Service Information

In many cases the older IFR/marconi/Aeroflex equipment has much of the functionality of the newer models at 1/10th the cost of refurbished newer equipment and up to 1/20th the cost of new.

Additional IFR Spectrum Analyzer manuals:

IFR 500 Service Manual
IFR 1000S Operation Manual
IFR 1000S Service Manual
IFR 2968 Application Notes
AN/GRM 114 (military version of IFR 1000S) Service Manual
AN/GRM 114 (military version of IFR 1000S) Calibration Manual

Please see our shipping information page for packing and shipping of your valuable instrument: Shipping Cautions

Please call us at 920-955-3693 or email 


Last Modified July 19, 2018
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