HP 8642A Operation And Calibration Manual

Operation
Model 8642A/B
Operating Messages (cont'd)
BAD PREFIX RECEIVED .E18
4018
A bad prefix has been detected by the Signal Generator. Terminator keys do not have shift functions.
HP-IB: The Signal Generator received a set of characters that cannot be recognized. Send a valid HP-IB
code or use the UP - IB Device Clear command and try again. (Refer to Clear, page 3 _. 24, in the HP- IB
portion of this Section IlL)
MAXIMUM OF 10 DIGlTS .E19 4019
This message is never displayed locally,
HP-IB: The Signal Generator ignored some digits in the entry. Only send 10 digits (including significant
leading zeros).
NUMBER OllT OF RANGE
.E20
4020
The attempted setting exceeds a numeric value which can be represented internally as a number, Select a
value within the Signal Generator's settable range,
AMPTD LIMITS MAX AM
.£24
4024
The amplitude setting limits the maximum AM setting. Reduce either the amplitude setting or the
attempted Al\[ setting and try again, Refer to Table 3-18 (page 3-102) for information on setting
limitations due to amplitude, or refer to the Sequence Dependency discussion that begins on page 3-12 in
the HP-lB portion of this Section IIi.
AM LIMITS MAX AMPTD .E25
4025
The AM setting limits the maximum amplitude setting. Reduce either the AM setting or the attempted
amplitude setting and try again. Refer to Table 3 -1 8 (page 3 -102) for informa hon on setting limitations
due to amplitude, or refer to the Sequence Dependency discussion that begins on page 3-12 in the HP-IB
portion of this Section III.
ONLY INTjEXT.DC PULSE
.E26
4026
Only an internal or external dc source is possible with pulse modulation. With pulse modulation, select
only (]II] or I EXT DC J. For other modulation sources, select the modulation type of [811], CE12D, or
~M ([SHIFT.,] r.::E12!J) before selecting the modulation source,
HP-IB: Send only PLNT or PLXD, or ensure codes AM, FM, or PM are sent before XA, BA, or BD.
PULSE MOD ONLY OFF ION
.£27
4027
Pulse modulation can only be off or on. Since pulse modulation can only be turned off or on, knob
rotation, cursor positioning keys, and Step keys cannot affect the pulse modulation function.
HP-IB: Select a function code before UP, DN, KL, or KR,
AM PREVENTS PULSE MOD
.E28
4028
AM is not possible with pulse modulation. Turn off AM (HP-IB: AMOF) before selecting pulse
modulation.
PULSE MOD PHEvENTS AM
.E29
4029
Pulse modulation is not possible with AM. Turn off pulse modulation (HP-IB: PLOF) before selecting AM .
TURN OFF EMF FOR DBM
. E30
4030
When in the EMF mode, dBm units are not possible. Turn off EMF before selecting dBm amplitude units.
NO RELATIVE AMPTD SWP .E31
4031
Relative values for amplitude sweep cannot be set directly, Convert the desired relative setting value to
absolute um ts, then set the amplitude sweep in a bsolu te units. (Refer to page 3 - 20 5 for amplitude units
conversion information.) Select only ( FREq I or ( AMPTD I (HP-IB code FR or AP) before attempting
relative settings.
3-186

HP 8642A Specifications

General

Brand	HP
Model	8642A
Category	Inverter
Language	English