
( Brand: Mfj ), ( Manufacturer Part Number: MFJ-991B ), ( Type: Automatic )
The MFJ-991B IntelliTuner is an automatic antenna tuner designed to optimize the performance of your radio antenna. This versatile device is compatible with a wide range of frequency bands, including HF, VHF, and UHF, making it an ideal choice for amateur radio operators and hobbyists.
The MFJ-991B IntelliTuner features a user-friendly interface with a large, easy-to-read LCD display that shows you the current SWR reading, frequency, and power level. It uses advanced algorithms to automatically adjust the impedance of your antenna to match the impedance of your transceiver, ensuring maximum power transfer and improved signal quality.
The MFJ-991B IntelliTuner is compact and lightweight, making it easy to transport and set up in the field. It has a rugged construction with a waterproof enclosure, ensuring that it can withstand harsh weather conditions. The device also has a built-in 12V DC power supply, making it compatible with most portable radios and mobile stations.
The MFJ-991B IntelliTuner is also equipped with a variety of safety features, including an over-temperature protection, over-current protection, and a short circuit protection. This ensures that the device is safe to use and can prevent any damage to your antenna or transceiver.
In summary, the MFJ-991B IntelliTuner is a high-performance, automatic antenna tuner that is perfect for optimizing the performance of your radio antenna. Its wide frequency range, user-friendly interface, compact size, and rugged construction make it an ideal choice for amateur radio operators and hobbyists. Its advanced algorithms and safety features ensure maximum power transfer, improved signal quality, and protection for your antenna and transceiver.
Pros of MFJ-991B Intellituner Automatic Antenna Tuner:1. Easy to Use: The MFJ-991B is an automatic antenna tuner, which means it can automatically tune your antenna to the optimal frequency without any manual adjustments. This makes it a great option for beginners or those who want a hassle-free tuning experience.
2. Wide Frequency Range: It has a wide frequency range of 1.8-1.6 GHz for VHF and 24-1.3 GHz for UHF, making it suitable for a variety of amateur radio applications.
3. Sturdy Construction: The MFJ-991B is built with a solid aluminum case, ensuring durability and longevity.
4. Compact Size: Its compact size makes it easy to transport and store, making it a great option for portable operations.
5. Powerful: With a power rating of 2 kW PEP, it can handle high power levels, making it suitable for even the most powerful amateur radio transmitters.
Cons of MFJ-991B Intellituner Automatic Antenna Tuner:1. Price: The MFJ-991B is a premium product, and its price reflects that. It may be out of budget for some amateur radio enthusiasts.
2. Limited Controls: Due to its automatic tuning feature, the MFJ-991B has limited controls, which some users may find limiting.
3. Requires Power: It requires an external power source, which may add to the overall setup cost and complexity.
Ending Conclusion:The MFJ-991B Intellituner Automatic Antenna Tuner is a high-quality, powerful, and easy-to-use tuner that is suitable for a wide range of amateur radio applications. Its wide frequency range, sturdy construction, and compact size make it a great option for both beginners and experienced users. However, its premium price and limited controls may be a drawback for some users. If budget is not a concern and you're looking for a powerful and easy-to-use tuner, the MFJ-991B is a great choice. If you're on a budget or prefer more control over your tuner, there are other options available that may better suit your needs.
Recommendation:If you're in the market for a high-quality automatic antenna tuner and budget is not a concern, the MFJ-991B Intellituner is a great choice. Its wide frequency range, sturdy construction, and powerful performance make it a versatile and reliable option for a variety of amateur radio applications. However, if budget is a concern or you prefer more control over your tuner, you may want to consider other options that are available in the market.
Next, it calculates the components needs and instantly snaps them in. For even faster searches, you can set the target Sr to 2 settable Mfj exclusive intellituner, adaptive search and instant recall algorithms give you ultra fast automatic tuning with over 10,000 non-volatile revolving memories.
If not, Mfj intellituner algorithm - based on famous Sr analyzer technology kicks in. Frequency is measured and relevant components values are determined. If it cannot accurately determine impedance, Mfj adaptive search algorithm goes into action.
Its all done in a fraction of second. It measures the complex impedance of your antenna. When you transmit, the MFJ-991B automatically tunes for minimum Sr and remembers your frequency tuner settings. So it is what.
When it powers up the meter lights, see picture 3, and needles kick like they should. Requires CDC at 1 or optional Mfj see below. Only those values are searched for ultra-fast tuning.
The next time you operate on that frequency, these tuner settings are instantly restored and ready to in milliseconds. Included is a partial manual that we got from . You can manually tune when cannot transmit for listening outside of the ham bands.
Physical cosmetic condition appears excellent. As you are rag chewing, contesting or ding, your MFJ-991B is learning. Then, it fine tunes to minimize Sr you re ready operate. Thee data is safely stored in non-volatile revolving memory.
When the impedance is within its measurement range, MFJ-991B one of fastest automatic antenna tuner in world. More about it: the MFJ-991B intellituner let's you tune any antenna automatically balanced or unbalanced - ultra fast. If so, tuning is instantaneous and you re ready to operate.
It may work not you get a highly efficient l-network, wide ohm matching at full 300 watts Sb 150 cw, Its a comprehensive automatic antenna tuning complete with Sr watt-meter, switch for two antennas and 4:1 current baling balanced lines MHz coverage, cross-needle meters, remote control port, radio interface, heavy-duty volt relays more.