RigExpert AA-200 User manual

RigExpert®
AA-200
0.1 to 200 MHz
AA-500
5 to 500 MHz
Antenna Analyzers
User’s manual

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Table of contents
1. Description ………………………………………… 3
2. Specifications ……………………………………… 4
3. Precautions ………………………………………… 5
4. Operation ………………………………………….. 6
4.1. Main menu ……………………………............ 6
4.2. Single- and multi-point measurement modes ... 6
4.2.1. SWR mode …………………………….. 6
4.2.2. SWR2Air mode ……………………….. 7
4.2.3. MultiSWR mode ………………...…….. 7
4.2.4. “Show all” mode ……………………... 8
4.3. Graph modes …………………………............ 9
4.3.1. SWR graph ……………………………. 9
4.3.2. R,X graph ……………………………... 9
4.3.3. Memory operation …….……………….. 10
4.4. Settings menu ……………….………………… 10
4.5. Computer connection …………………………. 10
4.6. Charging the accumulator ……………………. 11
5. Applications ..……………………………………… 12
5.1. Antennas ……………………………………… 12
5.1.1. Checking the antenna …………………. 12
5.1.2. Adjusting the antenna …………………. 12
5.2 Coaxial lines ………………………………….. 13
5.2.1. Open- and short-circuited cables …….. 13
5.2.2. Cable length measurement …………… 13
5.2.3. Velocity factor measurement …………. 15
5.2.4. Cable fault location ……………..……. 15
5.2.5. Making 1/4-λ, 1/2-λand other
coaxial stubs …………………………… 16
5.2.6. Measuring the characteristic
impedance ……………………………... 17
5.3. Measurement of other elements …………..… 18
5.3.1. Capacitors and inductors ………….… 18
5.3.2. Transformers ……………………….... 19
5.4. RF signal generator ……………………….... 19

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1. Description
RigExpert AA-200/AA-500 are powerful
antenna analyzer designed for testing,
checking, tuning or repairing antennas and
antenna-feeder paths.
Graphical SWR (Standing Wave Ratio)
and impedance display is a key feature of
these analyzers which significantly
reduces time required to put an antenna to
rights.
Easy-to use measurement modes, as well
as additional features such as memory
storage and connection to a personal
computer, make RigExpert AA-200/AA-
500 attractive for professionals and
hobbyists.
The new MultiSWR™ and SWR2Air™
[AA-200 only] modes are unique for these
antenna analyzers.
The following tasks are well-accomplished
by using RigExpert AA-200/AA-500:
•Rapid check-out of an antenna
•Tuning an antenna to resonance
•Comparing characteristics of an
antenna before and after specific
event (rain, hurricane, etc.)
•Making coaxial lines or measuring
their parameters
•Cable fault location
•Measuring capacitance or
inductance of reactive loads
1. Antenna connector
2. LCD (Liquid Crystal Display)
3. Keypad
4. Charger connector (9-14V
DC)
5. Power button
6. USB connector

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2. Specifications
Frequency range: AA-200: 0.1…200 MHz,
AA-500: 5…500 MHz
Display modes:
-SWR at single or multiple frequencies
-SWR, R, X, Z, L, C at single frequency
-SWR graph
-R, X graph
[RigExpert AA-500 displays absolute value of the reactance]
Single- and multi-frequency measurement:
-Frequency resolution: AA-200: 1 kHz
AA-500: 10 kHz
-SWR-only mode: easily-readable bar
-SWR range: 1…10
-SWR display for 50 and 75 Ohm systems
-R, X range: AA-200: 0…1000, -1000…1000 Ohm
AA-500: 0…250, 0…250 Ohm
SWR and R, X graphs:
-100 points plot
-Sweep width: AA-200: 0.001…200 MHz
AA-500: 1…500 MHz
-Frequency resolution: AA-200: 1 kHz
AA-500: 10 kHz
-SWR range: 1…10
-SWR display for 50 and 75 Ohm systems
-R, X range: AA-200: 0…200, -200…200 Ohm
AA-500: 0…200, 0…200 Ohm
-100 memories to store and recall graphs
-Presets for radio amateur bands
RF output:
-Connector type: AA-200: UHF (PL)
AA-500: N
-Output power: AA-200: typ. 10 dBm
AA-500: typ. 5 dBm (F<250MHz), -5 dBm (F=500 MHz)
Power:
-4.8V, 1800 mA·h, Ni-MH accumulator
-Max. 2 hours of continuous measurement
-Max. 2 days in stand-by mode
-External 9…14V, 200 mA charger
-Full charge time: 10…12 hours
Interface:
-128x64 graphical LCD with backlit
-6x3 keys on the water-proof keypad
-Multilingual menus and help screens
-USB connection to the personal computer
Dimensions: 23x10x5.5 cm (9x4x2”)
Operating temperature: 0…40 °C (32…104 °F)
Weight: 650g (23 Oz)

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3. Precautions
Never leave the analyzer connected to your antenna after you
finished operating it. Occasional lightning strikes or nearby
transmitter may permanently damage it.
Never connect the analyzer to your antenna in thunderstorms.
Lightning strikes as well as static charge may harm it.
Never inject RF signal into the analyzer. Do not connect it to
your antenna if you have active transmitters nearby.
Avoid static discharge while connecting a cable to the
analyzer. It is recommended to ground the cable before
connecting it.
Do not leave the analyzer in active measurement mode when
you are not actually using it. This may cause interference to
nearby receivers.

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4. Operation
4.1. Main menu
The on-screen menu system of the AA-200/AA-500 Antenna Analyzer provides a
simple but effective way to control the entire device.
Once the analyzer is turned on, a Main menu appears on the LCD:
The Main menu contains a brief list of available commands. By pressing keys on the
keypad, you may enter corresponding measurement modes, set up additional
parameters, etc.
There are three icons which are displayed in the top-right corner of the Main menu
screen:
•The USB icon is displayed when the analyzer is plugged to a personal computer;
•The charging indicator shows if an external charger is connected to the analyzer;
•The low battery indicator flashed when the accumulator has to be urgently
charged.
AA-200/AA-500 Antenna Analyzers are self-documented: this means that pressing the
1 key will bring a help screen with a list of available keys for the current mode.
4.2. Single- and multi-point measurement modes
In single-point measurement modes, various parameters of antenna or other load are
measured at a given frequency. I multi-point modes, several different frequencies are
used.
4.2.1. SWR mode
The SWR mode (press the 7 key in the Main menu) displays the SWR bar as well as
the numerical value of this parameter:

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Set the desired frequency (the 2 key) or change it with left or right arrow keys.
Press the ok key to start or stop measurement. The flashing antenna icon in the top-
right corner indicates if the measurement is started.
You may activate or deactivate audio indication by pressing the 0 key. In this mode,
beeps of different length correspond to different values of the measured SWR.
Pressing the 1 key will show a list of other useful commands.
4.2.2. SWR2Air mode [AA-200 only]
RigExpert AA-200 Antenna Analyzer presents the new SWR2Air mode which is
designed to help in adjusting antennas connected via long cables.
Traditionally, this job requires at least two persons: one of them adjusts certain
adjustment elements of the antenna, while the other one continuously watches the value
of the SWR on the lower end of the cable and corrects actions of the first person.
There is a way to do the same job in a much more simple way by using the SWR2Air
mode. The result of SWR measurement is transmitted on the specified frequency where
it can be heard with a portable HF or VHF FM radio. The length of audio signal
coming from the loudspeaker depends on the value of measured SWR.
The SWR2Air mode is activated by pressing the F + OK combination in the SWR
measurement screen. F + 2 allows setting the frequency to tune the receiver to.
4.2.3. MultiSWR mode
RigExpert AA-200/AA-500 Antenna Analyzers have a unique ability to display SWR
at up to five different frequencies at a time.

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You may use this feature to tune multi-band antennas. Use up and down cursor keys to
select a frequency to be set or changed. Press the 0 key to switch between SWR bars
and numerical representation of these parameters.
4.2.4. “Show all” mode
The Show all mode (the 8 key) will show various parameters of a load at the single
screen. Particularly, SWR, |Z| (magnitude of impedance) as well as its active (R) and
reactive (X) components are shown. Additionally, corresponding values of inductance
(L) or capacitance (C) are displayed:
[Please notice that RigExpert AA-500 displays absolute value of the reactance, |X|.]
For this this mode, you may choose either series or parallel model of impedance of a
load through the Settings menu:
•In the series model, impedance is expressed as resistance and reactance
connected in series:
•In the parallel model, impedance is expressed as resistance and reactance
connected in parallel:

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4.3. Graph modes
A key feature of RigExpert AA-200/AA-500 Antenna Analyzers is ability to display
various parameters of a load graphically. Graphs are especially useful to view the
behavior of these parameters over the specified frequency band.
4.3.1. SWR graph
In the SWR graph mode (press the 4 key in the Main menu), values of the Standing
Wave Ratio are plotted over the specified range:
You may set center frequency (the 2 key) or scanning range (the 3 key). By using
arrow keys, these parameters may be increased or decreased.
Press the ok key to refresh the graph.
The 0 key opens a list of radio amateur bands to set the required center frequency and
scanning range quickly. Also, you may use this function to see the whole frequency
range supported by the analyzer.
Press the 1 key to access the list of additional commands for this mode.
4.3.2. R,X graph
In the R,X graph mode (press the 5 key in the Main menu), values or R (active part of
the impedance) and X (reactive part) are plotted as solid and dotted lines, respectively.

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R,X graph - series model R||,X|| graph - parallel model
In these graphs, positive values of reactance (X) correspond to inductive load, while
negative values correspond to capacitive load. Please notice the difference in the plots
when series or parallel model of impedance is selected through the Settings menu.
[Please notice that RigExpert AA-500 displays absolute value of the reactance, |X|.]
4.3.3. Memory operation
In the SWR graph and R,X graph modes, you may choose to scan to memory (the 6
key). There are 100 memory slots available. Later, you may recall ( 9 ) the plots from
the specified memory.
Additionally, the F + 9 combination opens the editor of memory slot names.
4.4. Settings menu
The Settings menu (press the 0 key in the Main menu) contains various settings for the
analyzer.
When setting a longer LCD backlit timer, please notice that the backlit discharges the
accumulator heavily. It is recommended to keep the backlit turned off, when possible.
4.5. Computer connection
RigExpert AA-200/AA-500 Antenna Analyzers may be connected to the personal
computer for displaying measurement results on its screen, taking screen shots of the
LCD, as well as for updating the firmware.
A conventional USB cable may be used for this purpose. The supporting software is
located on the supplied CD.