Chapter 7 385
Language Reference
ACPCOMPUTE Adjacent Channel Power Compute
ACPCOMPUTE Adjacent Channel Power
Compute
Syntax
Figure 7-16 ACPCOMPUTE Syntax
Description
The ACPCOMPUTE command calculates the adjacent channel power
(ACP) of a transmitter based on the data that is on the display. This
function does not make a new measurement before computing. The
measurement must have been made with analog or peak method
selected and with normal acceleration so the appropriate data is
available to make the calculation.
The adjacent channel power measurement determines the leakage
power that is in the adjacent channels from the carrier. The result is the
ratio of the leakage power in the adjacent channel to the total power
transmitted by the transmitter. This function is useful for making
(ACP) calculations on data that has been recalled from memory.
The results generated by ACPCOMPUTE are categorized as follows
and can be queried using the respective query command shown:
• lower channel power (ACPLOWER)
• upper channel power (ACPUPPER)
• total power transmitted (ACPPWRTX)
• maximum adjacent channel power (ACPMAX)
The following error messages may be observed when using this
command:
• ERR 908 BW>>SPCG indicates that the channel bandwidth is too
wide, compared to the channel spacing, for a valid computation.
• ERR 909 SPAN<ACP indicates that the frequency span is too narrow
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