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CMU-K20/K21/K22/K23/K24
Non Signalling: Connection Control
1115.6088.12 4.73
E-11
Wideband
Power
The
Wideband Power
softkey controls the wideband power measurement and
indicates its status
(RUN | HLT | OFF)
. The status can be changed after softkey
selection (pressing once) by means of the
ON/OFF
key or the
CONT/HALT
key.
The measurement result is in units of dBm. The analog bar to the right of the
softkey shows the measured power relative to the
Max. Level:
The display range is
between
Max. Level – 10 dB
and
Max. Level + 10 dB
.
The wideband power measurement is performed at the RF Frontend of the CMU
and yields the peak power of the input signal inside a wide frequency range. For
GMSK modulated GSM signals, the result of the wideband power measurement is
usually slightly higher than the result of the
Power
measurement which is obtained
with different filter characteristics. The main purpose of the wideband power
measurement is to indicate whether an input signal is available and whether it is
advisable to change the
Max Level
settings.
Note:
An additional quick and precise power measurement is available in
remote control (keyword
NPOWer
).
Remote control
INITiate:WPOWer
FETCh:WPOWer:STATus?
READ[:SCALar]:WPOWer?
FETCh[:SCALar]:WPOWer?
SAMPle[:SCALar]:WPOWer?
Table-Oriented Version
The table-oriented version of the
Analyzer
tab defines:
•
The maximum expected input level
(RF Max. Level)
and the way it is defined
(RF Mode)
•
An external input attenuation or gain
(RF Attenuation)
•
The delay time (integer number of GSM timeslots) between the trigger time and the measured
timeslot
(Trigger Slot Offset)
•
All
Analyzer Settings
described in section
Softkey-Oriented Version
on p.
4.69
ff.
Fig. 4-34 Connection Control – Analyzer (table)
深圳德标仪器
135-1095-0799
Содержание CMU-K20
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