HP ESG Series User Manual page 105

Front and Rear Panel
Display Annotation
This annunciator is turned on when pulse modulation is turned
PULSE
on.
The
R R
remote HP-IB operation.
This annunciator toggles between
RF OFF
always visible in the display. This annunciator indicates
whether the RF signal is present at the RF OUTPUT connector.
The
S S
generated a service request (SRQ) over the HP-IB.
This annunciator is turned on when the signal generator is
SWEEP
sweeping in list or step mode.
The
T T
the talk mode and is transmitting information over the HP-IB.
This annunciator is turned on when the signal generator is
UNLEVEL
unable to maintain the correct output level. The
annunciator is not necessarily an indication of instrument
failure. Unleveled conditions can occur during normal
operation. A second annunciator,
same position when the automatic leveling control circuit is
disabled. When the ALC is disabled, the
has no meaning so these annunciators will never conflict.
This annunciator is turned on when any of the signal
UNLOCK
generator's phase locked loops are unable to maintain phase
lock. You can determine which loop is unlocked by
interrogating the error messages.
4-10
annunciator is turned on when the signal generator is in
annunciator is turned on when the signal generator has
annunciator is turned on when the signal generator is in
and and is
RF OFF RF ON
UNLEVEL
, will appear in the
ALC OFF
annunciator
UNLEVEL