Chapter 4
67
Front-Panel Key Reference
Amplitude
Amptd Units
accesses the softkeys that change the amplitude units. The amplitude
units can be changed by pressing
dBm
,
dBmV
,
dBuV
,
Volts
, or
Watts
.
When amplitude units is set to Watts, amplitude readings below 1 pW
will be rounded to 0 pW. Key Access:
Amplitude
Ref Lvl Offst
adds an offset value to the displayed reference level. Offsets are entered
by using the numeric keypad. Entering an offset does not affect the
trace or the attenuation value. Reference-level offsets are used when
gain or loss occurs between a device under test and the spectrum
analyzer input. Thus, the signal level measured by the spectrum
analyzer is the level at the input of an external amplitude-conversion
device. When an amplitude offset is entered, its value appears on the
left side of the display (as opposed to frequency offsets which appear at
the bottom of the display). To eliminate an offset, press
Ref Lvl Offst
,
0
,
dB
. Pressing
Preset
also sets the offset to zero. Reference-level offsets
are entered using the numeric keypad. See also the
Ext Amp Gain
softkey description. Key Access:
Amplitude
Ampcor
accesses the following
Ampcor
menu keys, which allow you to create or
modify an amplitude-correction factors table. Key Access:
Amplitude
,
More
Ampcor On Off
turns the current amplitude-correction factors on or off.
Key Access:
Amplitude
,
Ampcor
Modify Ampcor
accesses the following
Modify Ampcor
menu keys.
Key Access:
Amplitude
,
Ampcor
Select Point
allows you to create or edit an amplitude-correction
factor data point. Enter the point number to be created
or edited by using the numeric keypad, then press
Enter
. Press
Back Space
to correct errors.
Key Access:
Amplitude
,
Ampcor
,
Modify Ampcor
Select Freq
allows you to enter the frequency value for an
amplitude- correction point. Enter the frequency value
by using the numeric keypad. Change the frequency
value by using the step keys or the knob. Press
Back
Space
to correct errors.
A frequency coordinate must always be specified for
amplitude-correction factors.
NOTE
For amplitude-correction factors, a maximum of two entries with the
same frequency are valid. Only the first and last points of a series with
the same frequency values are used; any middle points are ignored.
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 ...