HP 8901B Operation And Calibration Manual page 337

Model
8901B
Operation
COMMENTS
Error 01
With the 1 . 5 MHz
IF,
the IF frequency must be 1 . 5 MHz f50
W z .
With the 455
W z IF,
the
IF
frequency must be 455 kHz f2.5 kHz (f5 W z in Timed RF level).
Refer to
RF
Frequency k i n g . Error 01 disables MODULATION OUTPUT/AUDIO INPUT.
Error 02
Refer to RF Input Attenuation and Gain for nominal input levels. Error 02 disables MODULATION
OUTPUT/AUDIO INPUT.
Error
03
Refer to
RF
Input Attenuation and Gain for nominal input levels. Error 03 disables MODULATION
OUTPUT/AUDIO INPUT.
Error 04
Error 04 designates either an improperly set audio range, or an attempt
to
measure modulation levels
greater than those specified. Refer to Audio Range.
Error 05
Error 05 often occurs when FM or RM measurements
are
attempted on low-level signals with high
AM
depth (greater than 90%). Error 05 disables MODULATION OUTPUT/AUDIO INPUT.
Error 06
Maximum allowable input level is 7
Vrms
(1 W peak).
Error 07
If
displayed during modulation measurements, increase audio range. If displayed during level measure-
ments, increase RF input attenuation or increase
RF
power range.
Error 08
If the connection from CALIBRATION AM/FM OUTPUT to RF INPUT is intact, this error may
indicate calibrator malfunction.
Error 09
Error 09 display times out. If the option is installed, Error 09 displayed may indicate an option
malfunction.
Error 10
Error 10 turns off MODULATION OUTPUT/AUDIO INPUT.
Error 11
In
dB
RATIO, Error 11 is displayed when measurement result is 0 or negative. (The argument of the
log function must be greater than 0 . )
rev.
15
JUL.87 Error Message
Summary
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