A PERSONAL JOURNEY WITH THE MFJ-836H
Author: Marius Lubbe ZS1ML
I’m excited to share my journey with the MFJ-836H, a device that has truly transformed my ham radio activities. As a versatile SWR/Wattmeter with an integrated RF Ammeter, operating in the 1.8-30 MHz range, it’s been a game-changer for me.

WHY I LOVE THE MFJ-836H:
- Accurate Power Measurements: The TrueActive™ peak reading circuit gives me accurate readings of peak/average forward and reflected power. I’ve been able to optimize my transmissions like never before.
- Easy Setup: Connecting my transmitter and antenna was a breeze. I learned the importance of using quality coax and connectors, which improved my overall setup significantly.
- Flexible Power Options: I appreciate that the SWR/Wattmeter section needs a DC power supply, but I was pleasantly surprised that the RF Ammeter works without it. This flexibility is great for different operating environments.
- Adjustable Power Scales: Whether I’m running high or low power transmissions, the adjustable power scales are perfect for my needs.
- Clear and Direct Readings: The meter scales for forward and reflected power are straightforward, making it easy to get accurate readings.
- SWR Measurements Made Simple: The direct SWR reading feature is fantastic. I can easily read my SWR from the meter without complex calculations.
- RF Current Measurement Capability: Measuring RF feedline current is essential in my setup, and the MFJ-836H’s capability to measure in three ranges (3, 10, and 30 Amperes) has been invaluable.

HOW THE MFJ-836H SOLVED MY PROBLEMS:
- Home Station Efficiency: Before the MFJ-836H, I struggled with optimizing my home station. Now, I monitor my power output and SWR accurately, ensuring efficient and safe operations.
- Reliable Field Operations: I’ve used it in the field, and it’s never let me down. It’s robust and reliable, exactly what I need for remote operations.
- Educational Tool: I’ve even used it to teach newcomers about RF and antenna tuning. It’s a great educational tool that makes complex concepts accessible.
SAFETY AND MAINTENANCE:
I’ve found that following the safety guidelines, especially when dealing with RF currents, is crucial. Also, knowing that I can recalibrate it if needed gives me peace of mind.
I wholeheartedly recommend the MFJ-836H to any ham radio operator, whether you’re a beginner or a seasoned pro. It’s not just a meter; it’s a partner in your radio journey, ensuring precision, reliability, and versatility in all your radio adventures.
MY ADVICE: If you’re considering a reliable, accurate, and versatile SWR/Wattmeter, the MFJ-836H should be at the top of your list. It’s been a fantastic addition to my ham radio gear, and I’m confident it will be for you too!