A large color TFT screen that allows you to see right on it any smallest detail of the graph, a multilingual interface, and a built-in assistant that you call at the one push of a button. A waterproof keyboard and the most hermetic antenna connector UHF(SO-239). All this is about the convenience and reliability of the multifunctional yet affordable RigExpert AA-35 ZOOM and AA-55 ZOOM Antenna and Cable Analyzers.
The younger model operates in the range from 0.1 to 35 MHz, and the older one – up to 55 MHz.
Both devices display SWR, R X, and RL graphs. AA 55 ZOOM additionally shows a Smith chart and also measures cable parameters: loss, impedance, length, and Velocity factor, helping to make the stub correctly. The last one offers another essential advantage: measure the SWR at five different frequencies at once.
Both VNAs allow you to measure systems with different impedance. AA 35 ZOOM – at 50 and 75 Ohms. For AA 55 ZOOM, values are extended: 25, 50, 75, 100, 150, 200, 300, 450, and 600 ohms.
You can operate the analyzers from a computer via the USB port. Download the free AntScope2 application from the website and install it. There are versions for Windows, Mac, and Ubuntu. This way, you will also get even more data about your antenna performance and will be able to share the results of measurements on social networks.
The AA-35 ZOOM and AA-55 ZOOM can continuously measure up to 6 hours on two AA batteries. And if you connect them to a power source via a USB port, they will work until you get bored. In this case, the batteries are not consumed.
Even the most inexpensive RigExpert VNAs are well-made and faithfully serve their owners for years. We are confident in their quality, and therefore we replace the device with the same new one if it suddenly starts to fail due to integrated chips after a while. Spend your valuable time not on repairs, but on enjoying the success of ham radio. With faithful helpers, it is inevitable.