VXI 3002 manual Attenuator hold, Attenuator lock ranges, Atten?

Miscellaneous commands

Attenuator hold

The ATTEN:LOCK command allows you to reduce the RF level by at least another 10 dB without the step attenuator operating.

ATTEN	[not used alone]
:LOCK	Lock the Attenuators
:UNLOCK	Unlock the Attenuators
Data type :	None
Allowed suffices :	None
Default suffix :	None
Example:	ATTEN:LOCK
ATTEN?	Prepares message containing information on whether the Attenuators are
	locked or unlocked in the following format:
	:ATTEN:<status>
	where	<status> is a program mnemonic indicating whether the
		attenuators are locked or unlocked.

Example: :ATTEN:LOCK

Table 3-2 below applies to software versions 1.03 onwards. Maximum level with attenuator lock on will reduce if AM or pulse modulation is applied. Any user programmed limits for RF level or offsets will also affect the attenuator lock ranges.

Table 3-2 Attenuator lock ranges

	RF level		Atten. lock	Atten. lock
setting (dBm)			(min. dBm)	(max. dBm)
from		to
+26.0		+18.0	+7	+25
+17.9		+7.1	−4	+24
+7.0		+7.0	−4	+13
+6.9		-4.0	−15	+13
−4.1		−15.0	−26	+2
−15.1		−26.0	−37	−9
−26.1		−37.0	−48	−20
−37.1		−48.0	−59	−31
−48.1		−59.0	−70	−42
−59.1		−70.0	−81	−53
−70.1		−81.0	−82	−54
−81.1		−92.0	−103	−75
−92.1		−103.0	−114	−86
−103.1		−114.0	−125	−97
−114.1		−125.0	−136	−108
−125.1		−136.0	−137	−119
−136.1		−137.0	−137	−130

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