
ES User’s Guide
4-13
Using Instrument Functions
Using Markers
To Search for
Notch Values
NOTE
The notch search function is intended for transmission or power
measurements in log mag format only.
1. To follow along with this example, you will need to connect a notch
filter to the analyzer in place of the bandpass filter shown in
2. Press
.
3. The notch search feature analyzes a notch filter and calculates the
bandwidth, center frequency, and Q (see note below) for the specified
notch level. (The default notch search level is
−
6 dB.) The resulting
information is displayed in the upper-right corner of the network
analyzer screen. The notch feature puts marker 1 in delta marker
mode. (Delta marker mode is explained later in this chapter.)
NOTE
Q stands for "quality factor," defined as the ratio of a circuit's resonant
frequency to its bandwidth. Your analyzer calculates Q as the center
frequency divided by the bandwidth.
Each marker's dedicated use is listed in the following table.
shows a
−
6 dB notch marker search on measurement channel 1.
Dedicated Use of Markers in Notch Search Mode
a. The center frequency is defined by the analyzer as the midpoint between the left
and right notch points.
b. Where n is the target value, and the
−
n dB point is relative to the maximum
response (marker 1).
MARKER
All Off Marker Search Notch
Dedicated Use
Measurement Channel 1
Measurement Channel 2
maximum power value
marker 1
marker 2
center frequency of stop band
a
marker 3
marker 4
notch
−
n dB point
b
(left)
marker 5
marker 7
notch
−
marker 6
marker 8
Содержание HP 8712ES
Страница 8: ...viii ES User s Guide ...
Страница 17: ...ES User s Guide 1 1 1 Installing the Analyzer ...
Страница 34: ...1 18 ES User s Guide Installing the Analyzer Preventive Maintenance ...
Страница 35: ...ES User s Guide 2 1 2 Getting Started ...
Страница 52: ...2 18 ES User s Guide Getting Started Performing the Operator s Check ...
Страница 53: ...ES User s Guide 3 1 3 Making Measurements ...
Страница 58: ...3 6 ES User s Guide Making Measurements Measuring Devices with Your Network Analyzer Figure 3 3 Block Diagram ...
Страница 135: ...ES User s Guide 4 1 4 Using Instrument Functions ...
Страница 146: ...4 12 ES User s Guide Using Instrument Functions Using Markers Figure 4 6 6 dB Bandwidth Marker Search ...
Страница 151: ...ES User s Guide 4 17 Using Instrument Functions Using Markers Figure 4 11 Multi Notch Search Mode ...
Страница 153: ...ES User s Guide 4 19 Using Instrument Functions Using Markers Figure 4 12 Marker Statistics Function ...
Страница 155: ...ES User s Guide 4 21 Using Instrument Functions Using Markers Figure 4 13 Marker Flatness Function ...
Страница 157: ...ES User s Guide 4 23 Using Instrument Functions Using Markers Figure 4 14 RF Filter Statistics Function ...
Страница 159: ...ES User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Страница 165: ...ES User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Страница 183: ...ES User s Guide 4 49 Using Instrument Functions Customizing the Display Figure 4 22 The Display Annotation ...
Страница 187: ...ES User s Guide 4 53 Using Instrument Functions Customizing the Display Figure 4 23 Normal Display ...
Страница 188: ...4 54 ES User s Guide Using Instrument Functions Customizing the Display Figure 4 24 Expanded Display ...
Страница 224: ...4 90 ES User s Guide Using Instrument Functions Using an External VGA Monitor ...
Страница 225: ...ES User s Guide 5 1 5 Optimizing Measurements ...
Страница 246: ...5 22 ES User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Страница 247: ...ES User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Страница 281: ...ES User s Guide 7 1 7 Front Rear Panel ...
Страница 283: ...ES User s Guide 7 3 Front Rear Panel Connectors Connectors Figure 7 1 Analyzer Connectors Front Panel ...
Страница 303: ...ES User s Guide 7 23 Front Rear Panel Line Module Figure 7 11 Power Cable and Line Mains Plug Part Numbers ...
Страница 306: ...7 26 ES User s Guide Front Rear Panel Line Module ...
Страница 307: ...ES User s Guide 8 1 8 Hardkey Softkey Reference ...
Страница 410: ...8 104 ES User s Guide Hardkey Softkey Reference Z ...
Страница 411: ...ES User s Guide 9 1 9 Specifications ...
Страница 469: ...ES User s Guide 10 1 10 Safety and Regulatory Information ...
Страница 475: ...ES User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Страница 476: ...10 8 ES User s Guide Safety and Regulatory Information Regulatory Information ...
Страница 477: ...ES User s Guide 11 1 11 Factory Preset State and Memory Allocation ...