3 Spectrum Analyzer Mode
3.7 Burst Power Measurement
3.7 Burst Power Measurement
The Burst Power (Transmit Power) measurement (at the base transceiver station) is
used to determine the power delivered to the antenna system on the radio-
frequency channel under test. The Burst Power measurement verifies the accuracy
of the mean transmitted RF carrier power. This can be done across the frequency
range and at each power step.
Mobile stations and base transceiver stations must transmit enough power, with
sufficient modulation accuracy, to maintain a call of acceptable quality without
leaking power into frequency channels or timeslots allocated for others. The Burst
Power measurement determines the average power for an RF signal burst at or
above a specified threshold value or during the detected burst width. The threshold
value may be absolute, or relative to the peak value of the signal. Burst width can be
set automatically or manually.
Measurement Commands for Burst Power (Transmit Power)
NOTE
The BPOWer form of the commands is included for backwards compatibility only,
and are not recommended for use in new designs. Use the TXPower keyword.
The following commands and queries are used to retrieve the measurement results:
:CONFigure:TXPower|BPOWer
:CONFigure:TXPower|BPOWer:NDEFault
:INITiate:TXPower|BPOWer
:FETCh:TXPower|BPOWer[n]?
:READ:TXPower|BPOWer[n]?
:MEASure:TXPower|BPOWer[n]?
Remote Command Results for Burst Power (Transmit Power)
For the queries listed above, the results returned depend on the value of n, as
follows.
n Results Returned
0 Returns unprocessed I/Q trace data, as a series of comma-separated trace points, in
volts. The I values are listed first in each pair, using the 0 through even-indexed
values. The Q values are the odd-indexed values
not specified
or 1
Returns the following comma-separated scalar results:
1.
Sample time: A floating point number representing the time between samples
when using the trace queries (n=0, 2, etc.)
1236 Spectrum Analyzer Mode User's &Programmer's Reference