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ACP Adjacent Channel Power
ACP Measurement Results
Variable
or Trace
Description
units
1CPERR
A variable that indicates if setup errors occurred for the ACP measurement. None
If ACPERR is 0, no errors occurred. If ACPERR is greater than 0, an error
occurred. An ACPERR value of 1 to 7 indicates that the frequency span,
channel spacing, or the channel bandwidth are not set correctly. An
ACPERR value of
1
to 7 indicates the following:
KPPWRTX
1
Frequency span < (2 x channel spacing
+
channel bandwidth).
2
Channel bandwidth > 2 x channel spacing.
3
Frequency span < (2 x channel spacing
+
channel bandwidth) and
channel bandwidth > 2 x channel spacing.
4
Channel bandwidth < frequency
span/loo.
5
Frequency span < (2 x channel spacing + channel bandwidth) and
channel bandwidth < frequency
span/loo.
6
Channel bandwidth > 2 x channel spacing and channel bandwidth
< frequency
span/loo.
7
Frequency span < (2 x channel spacing + channel bandwidth), channel
bandwidth > 2 x channel spacing, and channel bandwidth < frequency
span/loo.
A variable that contains the total transmit band carrier power. ACPPWRTX Determined by
is calculated by the following:
AUNITS
command
Default unit is
dBm.
10
x
b(Powe~carTier)
KPMAX
KPLOWER
A variable that contains the relative power level of the adjacent channel
with the highest measured power level.
A variable that contains the relative power level found in the lower
adjacent channel. ACPLOWER is calculated by the following:
dB
dB
LCPUPPER
‘RA
10 x
log(
P’-‘~e%wer
channel
PoweTcarrier
1
A variable that contains the relative power level found in the upper
dB
adjacent channel. ACPUPPER is calculated by the following:
Power
10 x
log(
upper
channel
Power
1
carrier
TRA is trace
A.
Trace
A
contains the swept RF spectrum that was used to
Determined by the
measure adjacent channel power.
trace data format
(TDF) command.
Restrictions
Executing ACP exits the following functions: windows display mode
(WINON),
N
dB
point
measurement (NDBPNT), the FFT menu measurements (FFTAUTO, FFTCONTS,
FFTSNGLS),
gate utility functions (GDRVUTIL), TO1 measurement
(TOI),
marker table (MKTBL), peak table
(PKTBL), percent AM (PCTAM), or peak zoom (PKZOOM).
AUNITS
of W or
V,
will give incorrect results for ACPMAX, ACPLOWER, and ACPUPPER.
5.34 Programming Commands