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RigExpert AA-30.ZERO, антенный анализатор

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RigExpert AA-30.ZERO

Это стандартный АА-30 анализатор, но без корпуса, ЖК-дисплея и клавиатуры.
Но .ZERO еще мощнее старого доброго АА-30.

Почему ?
При создании АА-30.ZERO мы встретили многочисленные пожелания радиолюбителей и DIY-любителей дать им измерительный инструмент, который можно легко интегрировать в собственные проекты.

.ZERO готов к использованию?
Да, он имеет все необходимое на борту, так что пользователь может подключить .ZERO к ПК (через адаптер USB-RS232) и выполнить все обычные лабораторные измерения.
.ZERO отлично работает с нашим программным обеспечением AntScope.

Хотите DIY ?
Опытный пользователь может выполнить сопряжение .zero с Arduino, делая его собственный проект оборудования/програмного обеспечения. Потому что .ZERO совместим со стандартом Arduino.
Также мы уже подготовили примеры работы .ZERO в проектах DIY.
Хотите сделать свой собственный автоматический антенный тюнер ? Используйте .ZERO!
Хотите выполнять РЧ-схемы или антенный анализ удаленно ? Пара .ZERO с esp8266 WiFi на SoM и готово!
Хотите, настроить антенну с управляемыми элементами резко ? Используйте .ZERO от нуля до точной настройки.

Цена и мощность
Такой точный и мощный анализатор найти по такой цене невозможно!
Мечты радиолюбителей сбудутся с помощью этого дешевого и надежного устройства!

RigExpert AA-30.ZERO

It is a standard AA-30 analyzer but without enclosure, LCD display and keypad.
But .ZERO even more powerful than the old good AA-30.

Why is that ?
Creating AA-30.ZERO we met the numerous wishes of radio amateurs and DIY-hobbyists to give them a measuring tool that can be easily integrated into their own projects.

Are .ZERO ready for use? 
Yes, it has everything necessary on board, so user can connect .ZERO to the PC (through USB-to-RS232 adaptor) and perform all the usual set of laboratory measurements.
.ZERO perfectly works with our AntScope software.

Want to DIY ?
Experienced user can pair .ZERO with the Arduino board making his own hardware/software project. Because .ZERO is compatible with Arduino standard.
Also we have already prepared examples of running .ZERO in the DIY projects.
Want to make your own automatic antenna tuner ? Use .ZERO!
Want to perform RF-circuits or antenna analysis remotely ? Pair .ZERO with the ESP8266 Wi-Fi SoM and do it!
Want to tune your antenna with driven elements sharply ? Use .ZERO to fine tuning.

Price & Power
It is not possible to find such an accurate and powerful analyzer at this price!
The dreams of radio amateurs will come true with this cheap and reliable device!


RigExpert AA-30.ZERO – Specifications

Frequency range: 0.06 to 30 MHz
Frequency entry: 1 Hz resolution
Measurement for 25, 50, 75 and 100-Ohm systems

Housing: none
Display: 4 LED
Power supply: external
Communication interface: UART

SWR measurement range: 1 to 100 in numerical mode,
R and X range: 0…10000, -10000…10000 in numerical mode,
RF output
• Connector type: SMA, included, not mounted
• Output signal shape: square, 0.06 to 30 MHz
• Output power: +13 dBm (at 50 Ohm load)

• Supply: External 5V
• Current consumption (max) 150 mA

General data
Dimensions (W x H x D) 55 mm x 69 mm x 5 mm (PCB only w/o connectors)
(2.1 in x 2.7 in x 0.2 in)
Weight 310 g (10.9 Oz) w/o connectors
Operating temperature 0…40 °C (32…104 °F)

NOTE: Specifications are subject to change without notice

Производитель   RigExpert
Страна производитель Украина

Getting Started with .ZERO

Before you start

The AA-30.ZERO is intended for users who require flexibility, low-cost, and small size.
It comes without on-board USB or pin headers to keep the cost down.
It’s a best choice for a measuring core you want to leave embedded in a project.
Please note that the .ZERO operates at 5V (like most Arduino or Arduino compatible boards).
Be sure to provide the correct power and use components/adaptors whose operating voltage matches .ZERO.

Connecting .ZERO to the PC
The .ZERO comes without built-in USB circuitry, so an off-board USB-to-TTL serial convertor must be used to communicate with the .ZERO.
.ZERO communicates with external devices throug UART interface.
For these purposes two UART interfaces are provided: UART1 (pins 0/TX1 and 2/RX1) and UART2 (pins 4/TX2 and 7/RX2).
By default .ZERO uses UART2 interface.
To make our first project we could get, for example, the SparkFun USB UART Serial Breakout.

Fig.1.ZERO plus USB2UART adaptor wiring diagram

Using colored wires connect USB2UART adaptor to .ZERO.

NOTE: connect USB adaptor’s TX pin to the RX pin of the .ZERO. Then connect USB adaptor’s RX pin to the TX pin of the .ZERO.
Then connect USB2UART to your PC using standard USB cable.

Please be sure that the Operating System recognizes your USB-to-UART adaptor and drivers are installed correctly:

Installing AntScope software
Then download AntScope software to measure anything you want.
You may use software installer from AA-30 product page or download standalone AntScope software using this link.
Suppose you downloaded the archive with standalone AntScope software.
Open the archive and extract files (with subdirectories) into your workplace. Then run AntScope.exe:

The AntScope program may not detect the AA-30.ZERO connected automatically.
In this case, you have to select the type of the connected device in the menu yourself:

Please be sure that the right COM port selected:

Congratulations! Now everything is ready for the first measurements.

Start measuring
First connect AA-30.ZERO to the antenna (or something else you want to measure) using flexible cable adaptor.
Then click Run Icon right under the menu bar:

then press “Set full range” button and press “OK” button:

The .ZERO starts blinking…

and after a few seconds the measurement results are displayed:


Pairing .ZERO with the Arduino Uno

Installing headers
The .ZERO supplied with traight breakaway headres kit:
Top side view

If you want to pair your .ZERO with the Arduino board you should solder breakaway headers first.
After the heareds soldered simply connect .ZERO with the Arduino board:
.ZERO paired with Arduino Uno

Pins usage

  • D0 – UART interface 1, TX, data out
  • D1 – UART interface 1, RX, data in
  • D4 – UART interface 2, TX, data out
  • D7 – UART interface 2, RX, data in

You can choose which UART interface should be used by unsoldering jumpers:
By default the .ZERO uses UART2 interface.

Installing Arduino IDE and compiling your first project
After that you should compile and run very simple sketch on your Arduino board.
Download and install Arduino IDE.

// UART bridge for data exchange between
// RigExpert AA-30 ZERO antenna & cable analyzer and Arduino Uno
// Receives from the Arduino, sends to AA-30 ZERO.
// Receives from AA-30 ZERO, sends to the Arduino.
// 26 June 2017, Rig Expert Ukraine Ltd.
#include <SoftwareSerial.h>

SoftwareSerial ZERO(4, 7); // RX, TX

void setup() {
    ZERO.begin(38400); // init AA side UART
    Serial.begin(38400); // init PC side UART

void loop() {
    if (ZERO.available()) Serial.write(ZERO.read()); // data stream from AA to PC
    if (Serial.available()) ZERO.write(Serial.read()); // data stream from PC to AA

This simple “serial repeater” code provides two-way communication between the computer and the .ZERO.
By the way, since the Arduino borad acts as a repeater, you can implement any code in it and moderate the exchange of data between the computer and the .ZERO analyzer.

Serial communication protocol

Since the .ZERO is intended for the amateurs to construct something intersting, we had to take care to give more freedom to the users of the .ZERO device.
Using the commands below, you can not only measure the parameters of antennas and cables, but also make the .ZERO automatically perform periodic measurements immediately after power is applied.
This is convenient when the instrument is part of a more complex system, for example, an antenna tuner.

Communication protocol

Command Description Response
ver returns analyzer type and firmware version AA-30 ZERO XXX
fqXXXXXXXXX set center frequency to XXXXXXXXX Hz OK
swXXXXXXXXX set sweep range to XXXXXXXXX Hz OK
frxNNNN perform NNNN measurements in the specified range output frequency (MHz), R and X for every meqasurement





Data visualization

Quite simplest way to visualize measurement results is to make your own application 


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