1.
Functions and submenus
app ear on the right-hand side
of the display during front
panel op eration.
Functions
turn HP 70340A/41A features
on and o and/or allo w data
entry.
Submenus
access groups
of related functions. The
functions and submenus that
are available change according
to the selected main menu.
6.
The
State menu
is used to
save/recall most of the
HP 70340A/41A op erating
parameters to/from anyof nine
nonvolatile register lo cations.
When this main menuis
underscored, the state
functions are accessible on the
right-hand side of the display.
11.
The
mo dulation inputs
(EXT PULSE, EXT AM, and
EXT FM) provide BNC
connections for external
mo dulating signals. The signal
generator RF output can b e
mo dulated with any
combination of
logarithmic
AM
,
FM
and
pulse
mo dulation
. With Option 1E2,
the
PULSE/TRIG, GATE IN
connector is also used as a
trigger/gate input for certain
internal pulse mo dulation
mo des.
2.
The
Frequency menu
is used
to select the CW frequency and
the frequency multiplier value
of the RF output signal. When
this main men
uis underscored,
the frequency functions are
accessible on the righ
t-hand
side of the displa
y
.
7.
The
Miscellaneous menu
accesses HP 70340A/41A
features (suchasservice
functions) which are less
frequen
tly used. When this
main men
uis underscored, its
associated functions are
accessable on the righ
t-hand
side of the displa
y
.
12.
The
HP-IB LEDs
(RMT,
LSN, TLK, and SRQ) indicate
the status of the instrument
when it op erates over the bus.
The
Status LEDs
are ACT and
ERR. The A
CT LED ligh
ts
when the signal generator
address is selected in the
address map, when the
instrumen
tis linked to the
displa
yk
eyboard, or when
errors are being reported. The
ERR LED lights when an error
condition exists.
3.
The
Amplitude men
u
is used
to set the output po
wer level
and to c
ho ose the methodof
RF output signal lev
eling.
Either in
ternal lev
eling,
external p ower meter leveling,
or external dio de detector
leveling can b e selected. When
this main menu is underscored,
the amplitude functions are
accessible on the righ
t-hand
side of the displa
y
.
8.
The
data en
try box
indicates
the curren
tactiv
eparameter, if
an
y
,and its v
alue. As y
ou en
ter
or mo dify data, c
hanges are
reected in this bo
x.
13.
The external
Automatic
Lev
el Con
trol
v
oltage (EXT
ALC) connector is used as the
feedbac
kpath to the signal
generator when RF output
power is leveled externally.
4.
The
Modulation men
u
is
used to select mo dulation t
ype
(FM, Log AM, and pulse
mo dulation) and en
ter or
mo dify associated data. When
this main men
u is underscored,
the mo dulation functions are
accessible on the right-hand
side of the displa
y
.
9.
The
displa
yk
eys
allo
wy
ou
to p erform man
y displa
y
oriented functions. Tw
o
imp ortan
t functions of these
keys are: c
ho osing/customizing
the fron
t panel and accessing
error messages.
14.
The t
ypeN(standard) or
APC-3.5mm (Option 1E9)
RF
OUPUT
connector is the signal
generator RF output. The
UNLEVELED LED indicates
whether or not output po
wer is
leveled.
5.
The
Modify Step men
u
lets
y
ou c
hange the knob incremen
t
v
alue or the
4
*
54
+
5
k
eys step
size. When this main men
uis
underscored, the mo dify step
functions are accessible on the
righ
t-hand side of the displa
y
.
10.
The
data en
try k
eys
are
used to en
ter and mo dify
function parameters. The
4
*
5
4
+
5
k
eys are used to increase or
decrease aparameter in user
dened steps. The knob is used
to increase or decrease a
parameter in decimal steps.
15.
The
Hex Nut Latc
h
allo
ws
easy installation/remov
al of the
signal generator mo dule
in
to/from the Mo dular
Measuremen
tSystem
mainframe.
vii
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