NDBPNT N
dB
Points

NDBPNT

N

dB

Points

Turns on or off the N
dB
points function.

Syntax

XNDBPNT
Equivalent
Softkey:
#
d3
PTS ON OFF.
Related Commands: MKBW, MKPX, NDB, NDBPNTR, TH.

Example

This example finds the shape factor of a signal.
OUTPUT
718;"MOV
NDBPNT,l;"
OUTPUT
718;"NDB
-6DB;"
OUTPUT
718."NDBPNTR'*"
,
-
,
ENTER 718;Six
OUTPUT
718;"NDB
-6ODB;"
OUTPUT
718;"NDBPNTR?;"
ENTER
718;Sixty
IF Six
0
-100 AND Sixty
<>
-100 THEN
Turns on the N dB points
measurement.
Sets the N dB points
mea-
surW
to
wmxsure
6 dB
below the
sign&
!s
peak.
Queries NDBPNTR. NDBPNTR
contains the wzmsurernent re-
sults of the N
dBpoints
mmsurement.
Stores the result in the vari-
able Six.
Sets the N dB points
rnea-
surernent
to measure 60 dB
below the signal’s peak.
Queries NDBPNTR.
Stores the result in the vari-
able Sixty.
If
both the rneasurernmt at
-6dBand-60dBweremlid,
print the shape factor of the
signal.
PRINT "Shape factor is
",Sixty/Six
Prints the shape factor of the
signal.
ELSE
Cfthe
bandwidth at -6 dB or
-60 dB could not be found,
an error statement
isprinted.
PRINT "Error, bandwidth could not be determined"
END IF
Programming Commands
5.381