
( Brand: Mfj ), ( Manufacturer Part Number: MFJ-249B ), ( Compatible Brand: Universal ), ( Type: Analyzer ), ( Unit Type: Unit )
The MFJ-249B HF/VHF SWR Analyzer and Frequency Counter, manufactured by MFJ Enterprises, is a versatile and essential tool for any ham radio enthusiast or amateur radio operator. This device is designed to provide accurate and reliable readings for SWR (Standing Wave Ratio) and frequency, making it an indispensable tool for optimizing radio performance and ensuring that your antenna system is functioning at its best.
The MFJ-249B features a 1.8 to 170 MHz frequency range, covering both HF and VHF bands. It offers a high resolution LCD display, which provides clear and easy-to-read readings, including SWR, frequency, and power output. The device also includes an adjustable attenuator, which allows you to fine-tune your antenna system for optimal performance, even in challenging environments.
One of the standout features of the MFJ-249B is its dual function as both an SWR analyzer and frequency counter. This means that you can use it to check the efficiency of your antenna system, as well as to precisely tune your transmitter to the desired frequency. The frequency counter has a resolution of 0.01 Hz, making it highly accurate and suitable for even the most demanding applications.
The MFJ-249B is also designed with portability and convenience in mind. It is compact and lightweight, making it easy to transport and set up in the field. It operates on a 9V battery, with a low battery indicator to ensure that you never run out of power unexpectedly. The device also includes a DC power jack, allowing you to use an external power source for longer sessions.
In conclusion, the MFJ-249B HF/VHF SWR Analyzer and Frequency Counter is a powerful and versatile tool for any ham radio enthusiast. Its wide frequency range, high resolution display, adjustable attenuator, and dual function as both an SWR analyzer and frequency counter make it an invaluable tool for optimizing radio performance and ensuring that your antenna system is functioning at its best. Its compact and portable design, coupled with its long battery life and external power option, make it a convenient and reliable choice for both indoor and outdoor use.
Pros of buying a MFJ-249B HF/VHF SWR Analyzer/Frequency Counter (MFJ-249):1. Wide frequency range: The MFJ-249B covers a wide frequency range of 1.8 MHz to 170 MHz, making it suitable for a variety of amateur radio applications.
2. SWR (Standing Wave Ratio) measurement: The SWR function allows you to measure the impedance match between your antenna and the transmitter, which is crucial for efficient and safe operation.
3. Frequency counter: The built-in frequency counter can be used to measure the frequency of signals, making it useful for tuning and testing purposes.
4. LCD display: The large LCD display makes it easy to read and interpret the measurements, even in low light conditions.
5. Auto tuning feature: The auto tuning feature can help you optimize your antenna system by automatically adjusting the antenna tuner to achieve the best possible SWR.
6. Affordable price: Compared to some other SWR analyzers on the market, the MFJ-249B is relatively affordable, making it a good option for budget-conscious hobbyists.
Cons of buying a MFJ-249B HF/VHF SWR Analyzer/Frequency Counter (MFJ-249):1. Manual tuning: While the MFJ-249B has an auto tuning feature, it still requires manual adjustments to achieve the best SWR readings, which can be time-consuming and require some skill.
2. Limited accuracy: While the MFJ-249B is a decent frequency counter, it may not be as accurate as dedicated frequency counters, which can be a concern for more serious hobbyists.
3. Some users have reported issues with calibration and accuracy, but this can be addressed with careful calibration and use of the manual adjustments.
Conclusion:Overall, the MFJ-249B HF/VHF SWR Analyzer/Frequency Counter (MFJ-249) is a decent option for budget-conscious hobbyists who want a wide frequency range and SWR measurement capabilities. While it may not be as accurate or feature-rich as some other SWR analyzers on the market, it is still a useful tool for tuning and testing amateur radio equipment.
Recommendation:If you are looking for a more accurate and feature-rich SWR analyzer, you may want to consider spending a little more money on a higher-end model. However, if you are on a tight budget and just need a basic SWR analyzer and frequency counter, the MFJ-249B is a good option to consider. Just be sure to carefully calibrate the unit and use the manual adjustments to achieve the best possible readings.
Comes with power supply. Please view pictures for cosmetic condition. MFJ HF VHF SWR Analyzer Frequency Counter model MFJ-249, 1.8-170 MHz, This unit is in good working condition. Has some scuffs/scratches as shown.