The MFJ-225 Unleashed!
Author: Marius Lubbe ZS1ML
Hey there, fellow radio enthusiasts! Let me tell you about my experience with the MFJ-225, a nifty little device that has truly been a game changer for my ham radio projects.
First Impressions: When I first got my hands on the MFJ-225, I was immediately impressed by its compact size. It’s a self-contained, handheld analyzer that’s perfect for field use. But don’t let its size fool you; this little gadget packs a punch with its features.
On-the-Go and At Home: Out in the field, the MFJ-225 is incredibly handy. It’s easy to carry around and provides all the essential functions I need to adjust my antennas. But here’s the cool part: back at my desk, it transforms into a powerful two-port (S21) desktop machine when I connect it to my PC. Using the IG-miniVNA freeware, I can run detailed data analysis and even print out stunning color-graphic plots to document my work.
Display and Functionality: The built-in back-lighted 3-inch LCD graphic display is a highlight. It’s clear, easy to read, and shows vivid swept displays for SWR, impedance, return loss, phase angle, and more. This feature has been a lifesaver for making fine circuit adjustments and visually tracking what’s happening with my antenna system.
Advanced Features: The MFJ-225 isn’t just a basic analyzer. It offers advanced features like precise DDS frequency control and self-calibration, making it incredibly user-friendly and efficient. The two-port VNA measurement capability is particularly useful for more complex testing and analysis.
Affordability: One of the best things about the MFJ-225 is its affordability. I got mine for a pretty good deal, and considering all its features and capabilities, it feels like a bargain.
My Experience: Using the MFJ-225 has been a joy. Whether I’m tinkering with antennas in my backyard, participating in field days, or just doing some routine checks, it’s my go-to tool. The ease of use, combined with its comprehensive functionalities, makes it ideal for both novices and seasoned ham radio operators.
You have to provide batteries for the unit, preferably AAA NiMH AAA batteries are recommended, while you can use AAA alkaline batteries in a pinch.
When using NiMH AAA batteries, the unit charge the batteries when attached to a 12V DC source.
Conclusion: In conclusion, the MFJ-225 is a versatile, affordable, and highly functional tool that has greatly enhanced my ham radio experience. Whether you’re a hobbyist or a professional, this little analyzer is definitely worth considering. It’s helped me fine-tune my antennas and has made my radio adventures much more enjoyable and efficient. I couldn’t be happier with it!
And that’s my take on the MFJ-225. Happy tuning and 73!
Further views: https://youtu.be/4K8eHnp4mNQ
