HP 8590 E-Series User Manual page 316

Trace A is not available
Indicates that trace A is in the store-blank mode and cannot be used for limit-line testing.
Use CLEAR WRITE A or VIEW A to change trace A from the store-blank mode to the clear
write mode, and then turn on limit-line testing. (U)
UNDF KEY
The softkey number is not recognized by the spectrum analyzer. (U)
USING DEFAUEI'S self cal needed
Indicates that the current correction factors are the default correction factors and that
the CAL FREQ & AMPTD routine needs to be performed. For the HP 8592L, HP 85933,
HP 85953, or HP 85963, CAL YTF routine needs to be performed also. (U)
Verify gate trigger input is disconnected before CAL AMPTD
This message is meant to remind you that nothing should be connected to the GATE
TRIGGER INPUT connector on the spectrum analyzer rear panel during the CAL AMPTD
routine. (U)
VID-BW FAIL
Indicates the video bandwidths have failed. (H)
Waiting for gate input . . .
Indicates that the spectrum analyzer needs an external trigger signal to use the time-gating
functions. Before using the time-gating functions, you should ensure there is a trigger pulse
connected to the GATE TRIGGER INPUT connector on the rear panel of spectrum analyzer
and that the GATE OUTPUT is connected the EXT TRIG INPUT connector. If you do not
want to use the time-gating functions, press [PRESET_. (U)
YTF is not available
The YTF is only available for the HP 8592L, HP 85933, HP 85953, and HP 85963. (U)
9-16 If You Have A Problem