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E4440A low level on the display

Question asked by swifty1956 on Apr 21, 2017
Latest reply on Apr 27, 2017 by dhamilton

My E4440A is now giving me trouble. I feed a 0dB signal into it and it will display -52dB at 2GHz but when i change to below 1.5 GHz the level almost in the noise and that is very high as well.

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