HP 8508A - Page 69

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Operation
i>
SYSTEMS
Frequency
FREQuency
Band
sBAND
<nrf>
Auto
Ranging
sAUTO
ON{OFF|1]0
Sets
the
frequency
band
of
the
Vector
Voltmeter
lock
circuits.
The
band
may
be
set-explicitly,
or
the
Vector
Volt-
meter
can
be
allowed
to
auto-range.
It
is
recommended
that
explicit
band
selection
is
used
when
possible
to
minimise lock time.
‘
FREQuency
:BAND
selects
the
frequency
band
explicitly.
The
command
forces
BAND:AUTO
to
OFF.
Bands
are
as follows:
Band
Number
Frequency
band
(MHz)
Band
Number
;
Frequency
Band
(MHz)
1
0.1
to
0.2
9
25
to
50
2
0.2
to
0.6
10
50
to
80
3
0.6
to
1
11
80
to
150
4
“1
to
3
:
12
150
to
250
5
3
to
5
13
250
to
500
6
5
to
8
at
500
to
1000.
7
8
to
15
15
1000
to
2000
8
15
to
25
20
:
0.02
to
0.02
The
default
setting
is
automatic
band
selection.
The
query
option
returns
the
current
band.
FREQuency
:BAND:AUTO
selects
explicit
or
automatic
frequency
band
ssi
Frequency
band
20
will
not
be
selected.
When-turned
OFF
the
Vector
Voltmeter
remains
in
the
current
band.
The
default
is
ON,
but
is
forced
to
OFF
when
the
FREO:BAND
command
is
received.
The
query
option
returns
1
or
0.
Identification
<=HP1B=>
*I0N?
The
identification
command
returns
a
string
which
describes
the
Vector
Voltmeter
and
Input
Module.
The
string
contains
four
fields,
separated
by
commas,
as
shown
below.
HEWLETT-PACKARD,
8508A-050,0,REV
2944
wewwwewcccenes
coee
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8
eeeeeree
Manufacturer
--
|
|
-
Firmware
revision
-- (Not used)
--
Input
module
option.(STD
or
050)
Model number -~
E1089
3-45