Special Functions - Racal Instruments 2151 Manual

SPECIAL FUNCTIONS
35
The
special
functions provided
for
use
by
the operator are
listed in
TABLE
4.2
Major
Special Functions,
and
TABLE
4.3
Minor
Special Functions.
The
major
special
functions
are those
most commonly
used by
the operator.
Each
special
function
is
defined
by
a
two-digit
number.
TABLE
4.2
Major
Special
Function
Function
Code
Cancels
Smooth
function
20
Selects
Smooth
function
(See
NOTE
1)
21
Leading
(function)
letters
in
O/P
string
80
No
leading (function)
letters in
O/P
string 81
Cancels
group 90
special
functions 90
Enables
hardware
ratio
B/A
91
TABLE
4.3
Minor
Special Function
Function
Code
Deselects
Channel
A
filter
10
Selects
Channel
A
filter 11
Cancels
all
group 30
special functions 30
Displays Local Oscillator
Value
(See
NOTE
2)
31
*
Displays Intermediate Frequency
(See
NOTE
3)
32*
Displays
Harmonic
Number
as
an
integer (See
NOTE
3)
33*
Displays
Harmonic
Number
with
fractional
part
(See
NOTE
3)
34*
Displays
IF
Detector Status (See
NOTEs
3
&
4)
35*
Cancels
ail
group 40
special
functions 40
Allows
setting of
LO & Harmonic
Number
(See
NOTEs
3
&
5)
41
Switches LO
Off
under
all
conditions (Quiet
Mode)
42
Cancels
all
group
50
special
functions
50
Ignore
IF
level
detector
51
Deselects Channel
A
attenuator
60
Selects
Channel
A
attenuator
61
Basic
10
MHz
check
70
Exercise
front panel
displays
and
LEDs
71
*
Start TEC, short
calibration value 72
Start TEC, long
calibration
value
73
Stop TEC, short calibration value
74
Stop
TEC, long
calibration value 75
*
Function
applicable
only with
'Service
Front
Panel' connected, see
Maintenance Manual.
4-10 2151
OPS
A
157
1/DA