Table
2-1.
Front
Panel Controls, Indicators,
and Connectors (cont)
REJ ENTRY
Lights
when
an
invalid
entry is
made.
UNCAL
Lights
when a
parameter
entry is outside its
specified
range. This
indicator
flashes
when any of the
internal
DAC's are over
or under-flow or when any
abnormal
operation is
detected.
RF
OFF
Lights when the RF OUTPUT is
disabled.
REMOTE
Lights when the Generator
is
in the remote ClEEE-488
interface) mode
of
operation.
ADDR
Lights when the Generator
is addressed
to Listen
or
talk.
SRQ
Lights when the Generator has
asserted
the IEEE-488
SRQ signal.
©
MODULATION
ON/OFF
Used
to
select
type^ source^
and frequency
of modulation.
With the exception of the
C400/1000T
key^ these keys
operate as independent push-on/push-off switches for
the given function. Any combination is allowed.
INT AM Erables internal amplitude modulation at the frequency
annunciated
by
the 400/1000
Hz indicator.
INT
FM 0M Enables internal frequency modulation at the frequency
annunciated
by
the 400/1000
Hz
indicator.
EXT AM
Enables external amplitude modulation using the signal
applied to the
MOD INPUT connector.
EXT
FM 0M
Enables
external
frequency
modulation using the signal
applied
to the TOD INPUT connector.
ext_TL
Enables
external pulse modulation using
the
signal
applied to the PULSE MODULATION INPUT connector.
400/1000 Alternately sets the internal modulation oscillator's
frequency to 400 or
1000 Hz,
Selected
frequency
is
displayed
only
when INT AM^
FM^ 0M, or internal pulse
is
enabled.
©
FUNCTION With the exception
of
the
CSTEP] and
CSPCL3
keys,
these
keys
operate
as interlocked switches that select the
parameter to
be entered or edited. For
the CFREQ3,
[AMPLD, CAM], and
CFM]
FUNCTION
keys,
the bright digit
appears
in
the
corresponding display of
the selected
function.
FREQ Selects the frequency parameter
of the
Generator
to be
programmed
by
using the DATA, EDIT,
or
STEP entry keys.
AMPL Selects the amplitude parameter
of
the Generator to be
programmed
by
using the DATA, EDIT, or STEP entry keys.
AM Selects the amplitude modulation CAM) parameter of the
Generator to be programmed
by using
the DATA, EDIT, or
STEP entry keys.
FMjBM
Selects the frequency modulation (FM),
or phase
modulation (0M)
parameter of the
Generator to be
programmed by using
the DATA, EDIT, or
STEP entry keys.
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