60
Chapter 3
Troubleshooting
Error Messages
S
in the status area of the display indicates that the service request
is active. Service requests are a form of informational message. More
information is available in the Programmer’s Guide. (M)
SAVE LOCK
The spectrum analyzer’s internal memory has been
locked. To unlock the memory, press
Internal Lock On Off
so that Off is
underlined. For remote operation, use PSTATE OFF. (U)
Signals do not fit expected % AM pattern
Indicates that
the % AM routine cannot perform the percent AM measurement
because the on-screen signals do not have the characteristics of a
carrier with two sidebands. (U)
Signals do not fit expected TOI pattern
Indicates that the
TOI routine cannot perform the third-order intermodulation
measurement because the on-screen signals do not have the
characteristics of two signals and two distortion products. (U)
Source Protected
A signal has been applied to the RF OUT
connector which caused the source output protection circuitry to
engage. The signal must be reduced. After the signal is reduced,
press the ESC key to disengage the source output protection
circuitry. (U) or (M)
TABLE FULL
Indicates the upper or lower table of limit lines
contains the maximum number of entries allowed. Additional
entries to the table are ignored. (U)
TG LO Unlocked
Indicates that the local oscillator within the
instrument’s tracking generator assembly is unlocked. (H)
TG unleveled
This message can indicate the following: that the
source power is set higher or lower than the spectrum analyzer can
provide, that the frequency span extends beyond the specified
frequency range of the tracking generator, or that the calibration
data for the tracking generator is incorrect. See “Stimulus-Response
Measurements” in the User’s Guide for more information. (U)
Too many signal with valid N dB points
Indicates the N dB
PTS function has located two or more signals that have amplitudes
within the specified dB from the signal peak. If this happens, you
should decrease the span of the spectrum analyzer so that only the
signal that you want to measure is displayed. (U)
Trace A is not available
Indicates that trace A is in the
store-blank mode and cannot be used for limit-line testing. Use
CLEAR WRITE A
or
VIEW A
to change trace A from the store-blank
mode to the clear write mode, and then turn on limit-line testing. (U)
Содержание ESA-L1500A
Страница 12: ...11 1 Preparing for Use and Printing ...
Страница 28: ...27 2 Getting Started ...
Страница 44: ...Chapter 2 43 Getting Started Making a Measurement Figure 2 5 Reading the Amplitude and Frequency ...
Страница 47: ...46 Chapter2 Getting Started Analyzer Battery Information ...
Страница 48: ...47 3 Troubleshooting ...
Страница 54: ...Chapter 3 53 Troubleshooting How to Return Your Analyzer for Service Figure 3 1 ...
Страница 117: ...116 Chapter4 Front Panel Key Reference Trig ...
Страница 118: ...117 5 Menu Maps ...
Страница 119: ...118 Chapter5 Menu Maps ...
Страница 120: ...Chapter 5 119 Menu Maps ...
Страница 121: ...120 Chapter5 Menu Maps ...
Страница 122: ...Chapter 5 121 Menu Maps ...
Страница 124: ...Chapter 5 123 Menu Maps ...
Страница 125: ...124 Chapter5 Menu Maps ...
Страница 127: ...126 Chapter5 Menu Maps a Frequency is replaced with Time when the X Axis Units Freq Time selection is Time ...
Страница 128: ...Chapter 5 127 Menu Maps ...
Страница 129: ...128 Chapter5 Menu Maps ...
Страница 130: ...Chapter 5 129 Menu Maps ...
Страница 131: ...130 Chapter5 Menu Maps ...
Страница 135: ...134 Chapter5 Menu Maps ...
Страница 136: ...135 6 Options and Accessories ...
Страница 145: ...144 Chapter6 Options and Accessories Accessories ...
Страница 146: ...145 7 Specifications ...
Страница 179: ...178 Chapter7 Specifications Regulatory Information ...
Страница 180: ...179 8 Required Equipment ...
Страница 187: ...186 Chapter8 Required Equipment Test Equipment ...
Страница 308: ...307 10 Performance Verification Test Record ...
Страница 321: ...320 Chapter10 Performance Verification Test Record HP ESA L1500A Performance Verification Test Record ...