HP 3336A - Page 55

Operation Model 3336A/B/C
b.
Amplitude.
After
receiving
‘‘IAM”’’,
the
-hp-
3336
will
send
its
output
amplitude,
in
dBm,
formatted
as
follows:
@
AM
600000
DD.DD@
DB
CR
LF&EOI
A
minus
sign
will
replace
the
first
zero
if
the value is less than @ dBm.
c.
Phase.
After
receiving
‘‘IPH’’,
the
-hp-
3336
will
send
its
phase
shift,
in
degrees,
for-
matted as
follows:
PH
02000DDD.D@@
DE
CR
LF&EOI
A
minus
sign
will
replace
the
first
zero
if
the
phase
shift
is negative.
d. Sweep Start Frequency. After receiving ‘‘IST’’, the -hp- 3336 will send the frequency
in Hz, formatted as follows:
ST
DDDDD.DDDDDD
HZ
CR
LF&EOI
For
frequencies
with
more
than
3
signifi-
cant
digits
after
the
decimal
point.
or
ST
DDDDDDD.DDD
HZ CR
LF&EOI
For
frequencies
with
3
or
less
significant
digits
after
the
decimal
point.
e.
Sweep
Stop
Frequency.
After
receiving
‘‘ISP’’,
the
-hp-
3336
will
send
the
frequency
in
Hz,
formatted
as
follows:
SP
DDDDD.DDDDDD
HZ
CR
LF&EOI
For
frequencies
with
more
than
3
signifi-
cant
digits
after
the
decimal
point.
or
SP
DDDDDDDD.DDD
HZ
CR
LF&EOI!
For
frequencies
with
3
or
less
significant
digits
after
the
decimal
point.
f.
Sweep
Marker
Frequency.
After
receiving
‘‘IMF’’,
the
-hp-
3336
will
send
the
frequen-
cy
in
Hz,
formatted
as
follows:
MF
DDDDD.DDDDDD
HZ
CR
LF&EOI
For
frequencies
with
more
than
3
signifi-
cant
digits
after
the
decimal
point.
or
MF
DDDDDDDD.DDD
HZ
CR
LF&EOI
For
frequencies
with
3
or
less
significant
digits
after
the
decimal
point.
g.
Sweep
Time.
After
receiving
“‘ITI’’,
the
-hp-
3336
will
send
the
time
in
seconds,
for-
matted
as
follows:
T1 000002DD.DDD SE CR LF&EOI
h.
Output
Impedance.
After
receiving
‘‘IOI’’,
the
-hp-
3336
will
send
a
digit
indicating
which
output
is
active,
formatted
as
follows:
IO
D
CR
LF&EOI
The
digit
D
returned
varies
with
the
instrument
model.
3336A 75 ohm D
150 ohm D
600 ohm D
1
2
3