AnsweredAssumed Answered

E4402B Noise Floor Elevated

Question asked by nolanjj on Aug 4, 2011
Latest reply on Sep 29, 2011 by MikeM
I have a E4402B that is automated to check signals at 421 MHz, the other day the noise floor (around -102 dBm) became very noisy and then becam a flat line at approximately -77 dBm. After turning off for about 30 minutes it resumed normal operation but was taken out of service and replaced with another unit.

Any ideas what the problem may be or suggestions to further troublshoot?  

Outcomes