RigExpert ZOOM series Mounting instructions

RigExpert®
Software manual
Antenna and cable
analyzer
ZOOM series

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1. Connecting RigExpert Antenna Analyzer to
your computer
2. Updating the firmware
3. AntScope program
3.1. Quick start
3.2. Data window
3.3. Saving/loading data
3.4. Saving images
3.5. Screen shots
3.6. Analyzer memory
3.7. AntScope menus
3.8. Time domain reflectometer (TDR) mode
3.9. Calibration mode
Table of contents

Software manual
RigExpert Antenna Analyzer can be connected to a computer running Windows
2000/2003/XP/Vista/7/8/10, as well as Mac OS (version 10.6 or higher) operating
systems.
The latest version of the software may be found at the Downloads section of the
rigexpert.com website. Windows and Mac OS are available as separate downloads.
Important:
To avoid damage caused by possible electrostatic discharge,
always follow this sequence:
1. Connect the coaxial cable to the antenna connector of your
analyzer.
2. Connect the analyzer to the USB port of your computer.
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1. Connecting RigExpert
Antenna Analyzer to your
computer

RigExpert Antenna Analyzer
A Firmware update tool available at the Downloads section of our website will
automatically download latest versions of the firmware. Just run the program and
follow on-screen instructions.
You may also download binary files of the firmware for the off-line updating, if
necessary.
The LCD of the analyzer will flash during the firmware update process.
Notice:
It is safe for the analyzer to cancel the firmware update process
at any time, and then start it over.
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2. Updating
the firmware

Software manual
3.1. Quick start
1. Connect your analyzer to the PC as described in section 1 of this manual. Make
sure the analyzer is turned on.
2. Run AntScope. Under Windows, the program will automatically detect the analyzer
type. For AA-230 ZOOM under Mac OS and Linux, select serial device name and
analyzer type in the Configure menu.
3. Select Measurement – Range menu (or press F9). In the Scan window, select a
desired frequency range (or click “Set full range”) and a number of points to set the
scan resolution. Click OK to perform the scan.
4. After the scan is complete, use F2 to F8 keys to switch between charts displaying
various parameters: SWR, phase angle, complex impedance (parallel and serial
models), return loss, impulse and step responses, and reflection coefficient at
Smith chart.
The main function of the AntScope program is to show measurement results on the “big
screen”. The AntScope is a great companion to your RigExpert analyzer which adds
functions previously available in expensive, professional grade equipment only.
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3. AntScope program

RigExpert Antenna Analyzer
The screen shot below shows a typical AntScope screen:
3.2. Data window
You will see a pop-up data window when the cursor is moved over the graph,
displaying various parameters of a load:
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Software manual
3.3. Saving/loading data
Go to File – Save as… menu to save current measurement to a file, then select Open…
to retrieve the saved data.
Please notice that data is saved in native AntScope format (.antdata files or files
without extension in older versions of AntScope), which cannot be open in other
programs. Use File – Export menu to export data in various formats.
For instance, CSV data can be easily imported into a Microsoft Excel sheet. Rand X
(active and reactive parts of impedance) values are saved into the CSV file for each
point on the graph. To calculate SWR or other parameters, use corresponding formulas.
3.4. Saving images
To paste the graph to other software (such as Microsoft Word , a graphical editor, or
an e-mail message editor), just select Edit – Copy image menu in the AntScope. You
may also press Ctrl-C or Ctrl-Ins. Paste an image from a clipboard to your program.
By using the View – Graph size menu, choose one of standard sizes of the image.
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RigExpert Antenna Analyzer
3.5. Screen shots
To take a screen shot of the analyzer, use the Edit – Copy analyzer’s screen menu. The
screen shot is placed to the clipboard automatically.
3.6. Analyzer memory
You may download a previously save graph from one of memory slots of your analyzer.
Make sure the analyzer is connected to your computer, then select File – Read from
analyzer menu.
Select a memory slot from the list, then press Choose to download the data.
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Software manual
3.7. AntScope menus
• File
New – discard old measurement, create new
Open… – open existing file
Save – save measurement results
Save as… – save measurement results, give a new name to the file
Import from
CSV file… – load data from a CSV file exported by
other programs
Touchstone file… – load data from a Touchstone S1P file
Export to
CSV file… – save results (frequency, R and X) to a CSV file
(contents of the csvheader.txt file will be added
as a header; by default this file contains a header
for the Zplots program)
NWL file… – save results (frequency, R and X) to an NWL file
Touchstone file… – save results to Touchstone
S1P file in different formats
Read from analyzer… – read a graph from the analyzer memory
Print – print current graph
Print preview – preview printing
Print setup… – open printer setup window
Exit – close the program window
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RigExpert Antenna Analyzer
• Edit
Copy image – copy the graph to the clipboard (to paste to other
programs for viewing or editing)
Copy analyzer’s screen – take a screen shot and place it into
the clipboard
• View
Toolbar – show or hide tool bar
Status bar – show or hide status bar
Graph size – set graph size to one of standard sizes
SWR – show SWR graph
Phase – show phase graph
Z=R+jX – show R, X, Z (series model)
Z=R||+jX – show R, X, Z (parallel model)
Return loss – show return loss graph
Time domain reflectometer – show TDR graph (see below)
(AA-230 ZOOM only)
Zoom in TDR, Zoom out TDR – zoom graph in the TDR mode
(AA-230 ZOOM only)
Smith chart – show Smith chart
Set SWR circle radius – set radius of reference circle (in SWR units)
Zoom in graph, Zoom out graph – zoom the vertical axis of the graph
Info under cursor – show numerical values of various parameters
(a data window) when the cursor is moved over the graph
Show previous graph – put a graph over an old one
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Software manual
• Configure
AA-xxx Analyzer – select the corresponding analyzer
Imported data – this menu is automatically selected if
the data was imported from a CSV or an S1P file
COM port… – select virtual COM port number or serial
device name, if needed (only for AA-230 ZOOM)
Units – set metric or US units
System impedance – set reference impedance for the system
(usually 50 or 75 Ohm)
Apply OSL calibration – apply calibration data to
the current display (see below)
Save last measured data – save calibration data (see below)
Parameters of calibration standards – select a model or load
the parameters (see below)
Cable parameters – enter cable impedance, velocity factor,
cable loss, etc.
Transmission line options – add or subtract cable from
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RigExpert Antenna Analyzer
• Measurement
Range… – select range and start measurement
Run – start measurement in the previously selected range
Single-point – start measurement at a single frequency
RF on/off – turn on or off RF output (RF generator mode)
Set frequency and amplitude – set frequency for single-point
or generator mode (Note: amplitude can’t be set)
Continuous mode – restart measurement when it finishes
Auto start – automatically run measurement
• Help
About AntScope – output version number and other data
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Software manual
3.8. Time domain reflectometer (TDR) mode
This mode (press F7) displays impulse response and step response graphs which
show how electromagnetic wave reflects from discontinuities in a cable. Additionally,
a tool tip near the cursor shows estimated value of the impedance of a cable at the
corresponding distance. This will let you know if your cable is in a good or a bad
condition.
For best results, perform a scan over the full frequency range with 1000 or more
points. Make sure the characteristic impedance and the velocity factor of the cable are
set in the Configure – Cable parameters menu. This will let you see the exact distance
to the discontinuity. For TDR measurements, it is not important if the cable ends with
antenna, open circuit or short circuit.
The following screen shot was taken in the real measurement. It shows 33 meters of 50
Ohm coaxial cable, antenna switching relay, and additional 35 meters of cable ending
with an HF antenna.
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RigExpert Antenna Analyzer
If the discontinuity is found, impulse response and step response graphs will not let
you know the exact reason of the problem, but will help in finding its location. You
could see how discontinuities of different nature affect impulse response and step
response graphs by experimenting with various cables, connectors and loads.
3.9. Calibration mode
Although RigExpert analyzers are designed to provide suitable precision without any
calibration, a simple “open-short-load” calibration method may be used to improve
the result. Moreover, this method may be used to remove the effects of a cable, so
accurate measurements at the far end of the cable become possible.
For this method, three calibration standards are required: an “open”, a “short” and
a “load” (usually, a 50-Ohm load). For better results, these standards should be of a
good quality. Additionally, physical length of all loads should be the same.
If the user can measure parameters of calibration standards precisely (such as in a
metrology laboratory), the Configure – Parameters of calibration standards – Loaded
from files menu may be chosen. Then, parameters of all three standards should be
loaded from S1P files by using the Configure – Parameters of calibration standards
menu. Please notice that S1P files should contain relatively many data points (1000 or
so) and should cover frequency band which is not narrower then the user expects to
use with a RigExpet analyzer.
In case of ideal parameters of all three calibration standards, the Configure –
Parameters of calibration standards – Ideal models menu should be selected.
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Copyright © 2016 Rig Expert Ukraine Ltd.
“RigExpert” is a registered trademark of Rig Expert Ukraine Ltd.
Made in Ukraine
Doc. date: 19-Aug-2016
http://www.rigexpert.com