BIRD 4421A User manual

Power Meter
4421A
Operation Manual
© Copyright 2022 by Bird Technologies, Inc.
Instruction Book Part Number 920-4421A Rev. D

Safety Precautions
i
Safety Precautions
The following are general safety precautions that are not necessarily related to
any specific part or procedure, and do not necessarily appear elsewhere in this
publication. These precautions must be thoroughly understood and apply to all
phases of operation and maintenance.
WARNING
Keep Away From Live Circuits
Operating Personnel must at all times observe general safety
precautions. Do not replace components or make adjustments to the
inside of the test equipment with the high voltage supply turned on.
To avoid casualties, always remove power.
WARNING
Do Not Service Or Adjust Alone
Under no circumstances should any person reach into an enclosure
for the purpose of service or adjustment of equipment except in the
presence of someone who is capable of rendering aid.
WARNING
Safety Earth Ground
An uninterruptible earth safety ground must be supplied from the
main power source to test instruments. Grounding one conductor of
a two conductor power cable is not sufficient protection. Serious
injury or death can occur if this grounding is not properly supplied.
WARNING
Resuscitation
Personnel working with or near high voltages should be familiar with
modern methods of resuscitation.
WARNING
Remove Power
Observe general safety precautions. Do not open the instrument
with the power on.

4421A Power Meter
ii
Safety Symbols
Note: Calls attention to supplemental information.
Warning Statements
The following safety warnings appear in the text where there is danger to
operating and maintenance personnel and are repeated here for emphasis.
See page 16 and 18
See page 29
See page 29
WARNING
Warning notes call attention to a procedure, which if not correctly
performed, could result in personal injury.
CAUTION
Caution notes call attention to a procedure, which if not correctly
performed, could result in damage to the instrument.
WARNING
Never attempt to connect or disconnect RF equipment from the
transmission line while RF power is applied.
Leaking RF energy is a potential health hazard.
WARNING
To avoid personal injury, disconnect the power cord from the AC line
before performing any maintenance.
WARNING
The Bird 4421A contains no user-serviceable parts.
Do not open the cover.

Safety Precautions
iii
Caution Statements
The following equipment cautions appear in the text and are repeated here for
emphasis.
See page 16
See page 38
CAUTION
Do not exceed the RF Power or RF frequency specifications of the RF
Power Sensor.
CAUTION
Do not store the 4421A outside the following temperature ranges
-10° to 50°C, ≤ 1 month
-10° to 35°C, ≤ 6 months
-10° to 25°C, > 6 months
Storage outside these temperature ranges may degrade battery
capacity.

4421A Power Meter
iv
Safety Statements
USAGE
ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY
THE MANUFACTURER MAY IMPAIR THE INSTRUMENT’S SAFETY
PROTECTION.
USO
EL USO DE ESTE INSTRUMENTO DE MANERA NO ESPECIFICADA
POR EL FABRICANTE, PUEDE ANULAR LA PROTECCIÓN DE
SEGURIDAD DEL INSTRUMENTO.
BENUTZUNG
WIRD DAS GERÄT AUF ANDERE WEISE VERWENDET ALS VOM
HERSTELLER BESCHRIEBEN, KANN DIE GERÄTESICHERHEIT
BEEINTRÄCHTIGT WERDEN.
UTILISATION
TOUTE UTILISATION DE CET INSTRUMENT QUI N’EST PAS
EXPLICITEMENT PRÉVUE PAR LE FABRICANT PEUT
ENDOMMAGER LE DISPOSITIF DE PROTECTION DE
L’INSTRUMENT.
IMPIEGO
QUALORA QUESTO STRUMENTO VENISSE UTILIZZATO IN MODO
DIVERSO DA COME SPECIFICATO DAL PRODUTTORE LA
PROZIONE DI SICUREZZA POTREBBE VENIRNE COMPROMESSA.

Safety Precautions
v
SERVICE
SERVICING INSTRUCTIONS ARE FOR USE BY SERVICE - TRAINED
PERSONNEL ONLY. TO AVOID DANGEROUS ELECTRIC SHOCK, DO
NOT PERFORM ANY SERVICING UNLESS QUALIFIED TO DO SO.
SERVICIO
LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO
DEL PERSONAL DE SERVICIO CAPACITADO. PARA EVITAR EL
PELIGRO DE DESCARGAS ELÉCTRICAS, NO REALICE NINGÚN
SERVICIO A MENOS QUE ESTÉ CAPACITADO PARA HACERIO.
WARTUNG
ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR
FÜR GESCHULTES FACHPERSONAL.
ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE SCHOCKS, SIND
WARTUNGSARBEITEN AUSSCHLIEßLICH VON QUALIFIZIERTEM
SERVICEPERSONAL DURCHZUFÜHREN.
ENTRENTIEN
L’EMPLOI DES INSTRUCTIONS D’ENTRETIEN DOIT ÊTRE RÉSERVÉ
AU PERSONNEL FORMÉ AUX OPÉRATIONS D’ENTRETIEN. POUR
PRÉVENIR UN CHOC ÉLECTRIQUE DANGEREUX, NE PAS
EFFECTUER D’ENTRETIEN SI L’ON N’A PAS ÉTÉ QUALIFIÉ POUR CE
FAIRE.
ASSISTENZA TECNICA
LE ISTRUZIONI RELATIVE ALL’ASSISTENZA SONO PREVISTE
ESCLUSIVAMENTE PER IL PERSONALE OPPORTUNAMENTE
ADDESTRATO. PER EVITARE PERICOLOSE SCOSSE ELETTRICHE
NON EFFETTUARRE ALCUNA RIPARAZIONE A MENO CHE
QUALIFICATI A FARLA.

4421A Power Meter
vi
About This Manual
This manual covers the operating & maintenance instructions for the following
models:
Changes to this Manual
We have made every effort to ensure this manual is accurate. If you discover any
errors, or if you have suggestions for improving this manual, please send your
comments to our Solon, Ohio factory. This manual may be periodically updated.
When inquiring about updates to this manual refer to the part number and
revision on the title page.
Chapter Layout
Introduction — Describes the features of the RF Power Meter.
Setup — Includes unpacking and equipment setup.
Operating Instructions — Identifies steps required to power on, use, and
power off the Power Meter.
Troubleshooting — Provides limited troubleshooting instructions for
commonly encountered problems.
Maintenance — Lists routine maintenance tasks as well as storage and
shipping instructions.
Specifications — Provides the specifications for the Bird RF Power Meter.
4421A

vii
Table of Contents
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Warning Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Caution Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Safety Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Changes to this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Chapter Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
4421A Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Optional Rack Mount Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Display Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Graph Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Remote Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ethernet Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
RS-232 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
RS-232 Cable Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Chapter 2 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Charge the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
VESA Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mounting Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Chapter 3 Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Chapter 4 4421A SCPI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4421A SCPI Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Put Manual Title Here
viii
4421A SCPI Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Common Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Measure Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Chapter 5 Legacy RS-232 Commands. . . . . . . . . . . . . . . . . . . . . . . . 24
Legacy Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
General Bus Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Device Dependent Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Chapter 6 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AC Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Web User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Configure Static IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Configure DHCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Touchscreen Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuring PC Network Settings to 4421A Subnet . . . . . . . . . . . . . . . . . . . 35
Restoring PC Network Connection to DHCP . . . . . . . . . . . . . . . . . . . . . . 35
Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Obtain Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Install Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Storage and Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Chapter 8 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Bird 4421A Power Meter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Appendix 1 Optional Rack Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4421A Rack Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Rack Mount Kit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Rack Mount Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Attach 4421A to Rack Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

1
Chapter 1 Introduction
The Bird 4421A Power Meter is used with Bird power sensors to measure RF
power.
General Description
The 4421A Power Meter is designed to be used with the Bird Power Sensors as
shown in
Table 1 . The 4421A is equipped with a touchscreen interface. There
are several models of the 4421A that feature extended capabilities and
enhancements beyond the base model, see
"4421A Options" on page 2 .
Figure 1 Bird 4421A Power Meter Assembly
Table 1 Compatible Power Sensors
Sensor Type Bird RF Sensor
Model Number
4421A
Model
Directional Power Sensors (DPS) 4021, 4022, 4023, 4024, 4025, 4027, 4028 All Models
Pulse Sensors 7027-series, 7037-series 4421A-12-11-1

4421A Power Meter
2
4421A Options
There are several 4421A models, as shown in
Table 2 . The models are enabled
by the installation of a firmware license, thus a base model can be enhanced
with additional features by the factory installation of a new license. The
following options are available for the 4421A.
One Sensor Operation — One Sensor models, will display the RF power
measurements of a single RF Power Sensor connected to one of the Sensor
connectors, see
"Controls and Indicators" on page 3 .
Two Sensor Operation — Two Sensor models, will display the RF power
measurements of two RF Power Sensor simultaneously when both sensors are
connected to the Sensor connectors.
Remote Operation — Models which include the remote interfaces allow the
4421A’s operation to be controlled from a remote computer/controller and RF
Sensor measurements from sensor(s) connected to the 4421A may be received
on the remote computer. This option is available as shown in
Table 2 .
Note: There are two protocols supported by the 4421A for remote
operation, the legacy 4421 protocol and the new SCPI protocol.
Either command protocol may be used to remotely access a single
sensor. To remotely access two sensors, you must use the SCPI
protocol.
Table 2 4421A Model List
Note: Licenses may be purchased to implement increased
capabilities of higher level models.
Optional Rack Mount Kit
A rack mounting kit (Bird Part Number 4421A-RM1) is available for the 4421A,
see
Appendix 1, Optional Rack Mount on page 41 .
Model Number Number of Sensors Remote Interfaces
4421A-10-00-0 One Serial Sensor None
4421A-20-00-0 Two Serial Sensors None
4421A-10-11-0 One Serial Sensor RS-232, Ethernet
4421A-20-11-0 Two Serial Sensors RS-232, Ethernet
4421A-12-11-1†
† Measurement data will only be displayed for the first two sensors
connected to the unit.
One Serial Sensor or
Two USB Sensors RS-232, Ethernet

Introduction
3
Controls and Indicators
Figure 2 Models 4421A-10-00-0, 4421A-20-00-0, 4421A-10-11-0,
4421A-20-11-0
Figure 3 Model 4421A-12-11-1
Item Indicator Description
1 Display/Touch Screen Displays Power Sensor information and acts as the
user interface.
2 Power Switch
Used to apply and remove power from the unit.
Illuminated ring indicates power is applied to the
unit.
• Normal Power ON/OFF - Press and release
(short press) the power button.
• Forced Power Down - Press and hold (long
press) the power button for 3 seconds.














4421A Power Meter
4
3AC Power Input
Connector
Power input connector (C-14, male), 100-240 VAC,
50/60 Hz, with integrated fuse holder, requires 1A,
5x20mm, slow-blow fuses.
4 Ethernet Connector Ethernet connector provides access to the device’s
web UI and firmware update capability.
5 RS-232 Serial Port
The serial port allows computer interface capability
with the 4421A using either the "4421A SCPI
Commands" on page 19 or the "Legacy RS-232
Commands" on page 24 .
Either command protocol may be used to remotely
access a single sensor.
On systems capable of two sensor operation the
"4421A SCPI Commands" on page 19
must be
used to remotely access two sensors.
6Sensor Connectors,
402X Model Sensors
4421A-10-00-0, 4421A-20-00-0, 4421A-10-11-0,
4421A-20-11-0
Two serial sensor cable connectors.
Either connector may be used on one sensor
models. One or both may be used on two sensor
models.
4421A-12-11-1
One serial sensor cable connector.
See "4421A Options" on page 2
.
7Sensor Connectors,
702X Model Sensors
4421A-12-11-1
Two USB sensor cable connectors.

Introduction
5
Display Features
The 4421A display is capable of displaying the measurement information from
one or two sensors simultaneously (model dependent), see Figure 4 . The
display may be configured to display the following measurements from a sensor:
Forward Power
Reflected Power
VSWR
Return Loss
Reflection Coefficient
Figure 4 Sensor Measurements Display
Note: Dual-sensor display is only available if the dual-sensor
license has been purchased and activated. See
"4421A Options"
on page 2 .
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:
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P:
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:
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$XWR
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
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


4421A Power Meter
6
Display Controls and Indicators
The display is used for presenting information and controlling the behavior of
the 4421A. The controls are those items displayed on the screen, that, when
tapped cause a change in the 4421A’s behavior. Controls can be identified by
their color, on screen controls are yellow. The table in
Figure 5 describes the on
screen controls and indicators.
Figure 5 Display Controls
Item Indicator Description
1Battery/AC Power
indicator
When connected to AC power, and
battery is below 100%, the charge
indicator is displayed.
When connected to AC power and
battery is fully charged, a facsimile of an
AC Power Plug is displayed.
When on battery power, the charge level
of the battery in displayed.
2 Battery Remaining Indicates the remaining charge of the internal
battery.
3 Sensor model/SN
The sensor model number and serial number are
displayed above the sensor’s measurement data.
May display Connecting... for several seconds after
initially connecting a sensor.
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Introduction
7
4Forward and
Reflected Power
The sensor readings for Forward and Reflected
power may be displayed in milliwatts, Watts,
Kilowatts, or dBm.
In overrange situations, the 4421A will display the
word “RANGE” in place of the actual power
reading.
When Reflected power measurement is dBm, -inf
dBm means the reflected power was 0 W (exactly).
5 Measurement Unit The 4421A will display the signal measurements in
Watts or dBm.
6Manual Range
Controls
Up and Down arrows are used to change the scale
of the displayed power readings.
Note: Stops automatic scaling. Auto
indicator (item 7) turns off.
Note: Manual Range not available when
measurement unit is dBm.
7 Settings Menu
The settings menu is used to configure what
measurement information is displayed, and to
configure LAN and Serial Port settings. See
"Settings Menu" on page 9
.
8 Auto Range
- When button is on, indicates range scale
is set to auto.
- When button is off, indicates range scale
is in manual control, see item 5.
Note: Auto Range not available when
measurement unit is dBm.
9 Limit Lines
Min and max limit lines (green horizontal lines) may
be set to display in the graph’s display area.
The position of the two lines are set in the "Graph
Settings Menu" on page 10 .
10 Clear Tapping Clear discards the graph’s accumulated
data and resets time scale to 60 seconds.
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4421A Power Meter
8
11 Time Scale
The graph’s time scale auto expands as data
accumulates with the following scales:
• 60, 120, 240, 480 seconds
• 15, 30, 60, 120, 240 minutes
• 8, 16, 24 hours
Data accumulation stops at 24 hours.
When graph is turned off then back on the
accumulated data is discarded and time scale resets
to 60 second span.
12 Auto Tap Auto to adjust the graph’s power scale to fit
accumulated data.
13 Measurement Trace
Forward Power is plotted on the graph in watts on
the vertical axis (y) versus time in the horizontal
axis (x). The trace is displayed as a red line.
The graph accumulates data at 1 sample/sec as
long as a sensor is connected.
• If no sensor is connected, accumulation
pauses until a sensor is connected.
• The graph does not account for any gap while
a sensor is disconnected. That is accumulation
will resume as if only 1 second has elapsed
since the last sample.
• The graph does not account for mixing sensors
(i.e. switching sensors in the middle of
accumulation).
• Plotted data is either raw data or averaged
data. Mode is set in the "Graph Settings
Menu" on page 10
14 Power
Power scale defaults to the min/max power
specification for a connected sensor.
The measurement unit will match that selected by
the measurement unit selection (see item 4).
• Power scale may be adjusted automatically
(see item 11, Auto) or via the Graph Settings
Menu
• Tap to open power dialog.
15
VSWR /
Return Loss/
Reflection
Coefficient
This line on the display can be set to display one of
three measurements:
VSWR, Return Loss, or Reflection Coefficient.
The Settings Menu
is used to select which
measurement is displayed.
+inf will be displayed if Reflected power = Forward
power (an uncommon scenario, but could occur
with an open circuit).

Introduction
9
Settings Menu
The setting menu is used to select what information will appear on the 4421A’s
display as well as configuration of the LAN and Serial Ports.
Figure 6 describes
the options available via the setting menu.
Figure 6 Settings Menu
Item Title Description
1 Measurements Check boxes used to select which measurements are
displayed for the attached sensor(s).
2 Match Format Radio buttons used to select the format for the match
measurement.
3 Display Graph When check box is selected, a graph is displayed on the
screen with the associated measurements.
4Use Legacy
RS232
When check box is selected, the 4421A will accept the
RS-232 command set used with legacy 4421 power
meters. See Chapter 5, Legacy RS-232 Commands
on page 24 .
5Use Command
Mode
Command mode emulates the command mode dip
switch setting from the legacy 4421 power meters RS-
232 command set.
6 Settings Icon
When tapped, a menu is displayed for selecting the LAN
or Serial configuration menus.
• When LAN is tapped, the 4421A’s IP address
configuration menu is displayed. See "IP Address
Settings Display" on page 12 .
• When Serial is tapped, the 4421A’s serial port
settings dialog box is displayed. See "Serial Port
Setup" on page 13 .
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4421A Power Meter
10
Graph Settings Menu
The Graph Settings menu is accessed by tapping the power scale on the graph.
Figure 7 describes the options in the Graph Settings menu.
Figure 7 Graph Settings Menu
7 About
Displays the units Model Number, Serial Number, and
Firmware ID. Compliance and software licensing
information may also be viewed from the About menu.
Item Title Description
1 Range
Text entry boxes for the entry of Min and Max range for
the Power Scale on the Graph. Min and Max values
specify the upper and lower limit of the power scale of
the graph.
2 Limit Lines
Text entry boxes for the entry of Min and Max value for
the limit lines displayed on the Graph. Two horizontal
limit lines may be set to user specified levels on the
power scale. The Min value sets the location of the lower
limit line, while the Max value sets the location of the
upper limit line.
3Average On,
Graphing Mode
Graphing Mode allows the measurement results to be
displayed either raw or averaged. When Average On is
checked, each point plotted on the graph is the
arithmetic mean of several raw graph samples.
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