Hi,
I have a spectrum analyzer Agilent E4405B.
On the right side of screen, i get following instrument message:
"LO unlock"
I have consulted the service guide but unable to resolve the problem
Kindly tell me how can I remove this message from the screen.
I have a spectrum analyzer Agilent E4405B.
On the right side of screen, i get following instrument message:
"LO unlock"
I have consulted the service guide but unable to resolve the problem
Kindly tell me how can I remove this message from the screen.
The "LO Unlock" error messages is described in the ESA Instrument Messages and Functional Tests Guide (which is available here on the web http://cp.literature.agilent.com/litweb ... -90334.pdf)
It says:
"LO Unlock (Synth Unlocked): Indicates the phase locked circuitry of the local oscillator (LO) has become unlocked. This condition must be corrected to make valid measurements."
It indicates a problem with your RF Assembly, block A8A1 on the block diagram on page 143 of the ESA service guide, that's the place to look for the problem.
Best regards,