I have seen an abnormal rate of failure of this yig on the 70900A/B and 8562A. Other yigs on the 8560,1,3 ... , the 8350 plug ins, the 8340...are very reliable and I am puzzled by this problem. Did HP/AGILENT look at the causes and get an explanation : size involving overheating, failure of the detector in the ALC ??? Thanks.
There have been improvements in the EYOs used over time. Newer Agilent spectrum analyzers have better reliability than older spectrum analyzers.
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