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(POWER
LEVEL)
Power(dBm)
INT :
x.xx.
In
Normal, Uncoupled Attenuator, the (POWER LEVEL) key controls
the Level
DAC
and Level Control
Circuits
(see Figure A-l)
within the ALC level range
(+25
to -20
dBm).
The attenuator is
uncoupled from the ALC system and is controlled separately with the
Set
Atten
key.
When you press (POWER LEVEL), the active entry area displays:
-->
ATTEN
X dB, ALC:
X.Xx
dBm,
where X represents a numeric value. The data display area indicates:
Power
(dBm)
INT :
x.xx .
In
Normal, External Detector
(ExtDet),
the [POWER LEVEL) key
controls the output power of the synthesizer as compared to the
external detector feedback voltage. The attenuator
(if present) is automatically uncoupled from the ALC system and the
(POWER LEVEL key controls the Level DAC and Level Control Circuits
(see Figure A-l) within the ALC level range
(+25
to -20
dBm).
This mode of operation requires a feedback connection from a
negative-output diode detector to the EXT ALC connector.
When you press
(POWER LEVEL), the active entry area displays:
-->
ATTEN
X dB, EXT POWER:
X.Xx
dBm
,
where X represents a numeric value. The data display area indicates:
Power(dBm)
EXT :
x.xx .
In
Normal, Power Meter
(PwrMtr),
the (POWER LEVEL) key
controls the output power of the synthesizer as compared to the
feedback voltage of the power meter. The attenuator (if present) is
automatically uncoupled from the ALC system and the
POWER LEVEL
key controls the Level DAC and Level Control Circuits (see
Figure A-l) within a more restricted range of the ALC level.
Instead of the 45
dB range of the ALC in other modes, 12 dB is
available in this mode, with the upper end of the range set by the
Pwr
Mtr
Range softkey. This mode of operation requires a feedback
connection from the recorder output of a power meter.
When you press
(POWER LEVEL), the active entry area displays:
-->
ATTEN
X dB, POWER LEVEL:
X.Xx
dBm
,
where X represents a numeric value. The data display area indicates:
Power(dBm)
HP 8360
User’s Handbook
Operating and Programming Reference
P-3