HP 24A, 83620A, 22A manual User’s Handbook, Operating and Programming Reference P-3, Power Level

(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, A L C : X.Xx dBm,

where X represents a numeric value. The data display area indicates:

Power (dBm)

INT : x . x x .

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-outputdiode 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 . x x .

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		Operating and Programming Reference P-3
User’s Handbook