Reverse
Protection
Power
Status
This instrument provides protection from signals inadvertently applied
to the RF output of the instrument. This protection
is
commonly
called reverse power protection (RPP). The instrument automatically
detects the reverse power, which in turn, disconnects the instruments
RF output. When the RPP engages, the front panel display
will
read
RF OFF but must be queried for HP-IB reporting.
Example: Check the
condition
of
the
RPP
18
IIIIJTFI-IT
719;
"!zTHT: G!I-IE:S:
PCtW:
~~Cl~j[:l'?'"
28
EEjTEE
7
13
j
$'a
1
IJ~
;:a
F:pp=B
1
t.jHbj[>
('u'a
1
IJe
3
1
::I
48
IF
RFp=1
THEN FF:INT
"WF
is
eri~~a~3ed"
58
1
F
Rpp=
1
THEN
1
t.jPlJT
1:l:It-rel~t.
elj
(
'r',+l
;a
'I
9
H$
15
t-ea.>et-se poi.,jet-
i
npijt.
688
IF H$="'f"THEt.j IIlIJTPI-IT71'~; "IIIlJTF': !STHT
I:It.j"
i'd
tNL3
--
-.
.-
Line 10
Line
20
Line 30
Queries the condition of the POWer register.
Enters the condition of the POWer register into the
variable "Value".
Uses the HP Basic command,
BINAND
to
check the
contents of bit
0
in "Value". If bit
0
is a
"l",
"Rpp"
will
equal
"
1
"
,
Checks
if
the RPP condition is
"1"
and if true prints
that the RPP is engaged.
Checks if RPP condition is
1
'
and if true
asks
if
the
situation has been corrected.
Checks if the answer was yes to correction and
if
true
turns the RF output on to reset the RPP.
Line
40
Line
50
Line 60
Unspecified Power
(Amplitude) Entry
Status
This instrument provides a message if an amplitude entry is requested
above
+
10 dBm and less than or equal to
+
13
dBm or an attenuator
hold range is exceeded (see operating part of manual). When
an
unspecified amplitude
is
entered, the front panel display will read
"Amplitude exceeds specified range,
"
but must be queried for HP-IB
reporting.
HP-IB Programming
2-1
1
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