
( Brand: Mfj ), ( Manufacturer Part Number: MFJ-434B ), ( Part Type: Box ), ( Country/region Of Manufacture: United States ), ( UPC: 650619003215 )
The MFJ-434B Voice Contest Box Keyer (650619003215) is a high-performance, fully-automatic, voice keyer designed for amateur radio operators participating in voice contests. This compact, yet powerful device is ideal for use in both CW and voice contesting, providing a user-friendly interface that allows for easy programmability and operation.
The MFJ-434B features a high-quality, crystal-clear digital voice synthesizer, capable of producing a wide range of sounds, including human voices and Morse code. The device can be programmed with up to 100 different phrases, allowing users to create customized messages for their contesting needs. Additionally, the MFJ-434B comes with a built-in noise blanker, which helps to reduce background noise and improve signal clarity during contests.
The MFJ-434B also includes a number of advanced features, such as an adjustable delay between phrases, a variable message speed, and the ability to use pre-recorded audio files as messages. The device can be controlled via a simple, intuitive interface, which includes a large LCD display, a set of easy-to-use buttons, and a rotary encoder for fine-tuning settings.
The MFJ-434B is compatible with a wide range of amateur radio equipment, including transceivers, amplifiers, and antennas. It can be connected to your radio using a 3.5mm audio jack, making installation quick and easy. The device is also powered by a standard 12V DC power supply, which is not included in the box.
Overall, the MFJ-434B Voice Contest Box Keyer is an excellent choice for any amateur radio operator looking to enhance their contesting experience. Its high-quality digital voice synthesizer, advanced features, and user-friendly interface make it a versatile and reliable tool for any contesting situation.
Pros of buying a MFJ-434B Voice Contest Keyer:1. Advanced Features: The MFJ-434B is a high-end voice keyer that offers advanced features such as CW (Morse code) and RTTY (Radioteletype) capabilities. It also supports CW and PSK31 digital modes.
2. Voice Recording and Playback: The keyer allows you to record and playback your own voice for CW operations, which can be a significant advantage in contesting.
3. Adjustable Speed: The keyer allows you to adjust the speed of your CW messages, which is useful for different contest rules and conditions.
4. Integrated Antenna Tuner: The MFJ-434B comes with an integrated antenna tuner, which can save you the cost and space of an additional unit.
5. Robust Construction: The keyer is built to withstand the rigors of contesting and is known for its durability.
Cons of buying a MFJ-434B Voice Contest Keyer:1. High Price: The MFJ-434B is a high-end keyer and its price reflects its advanced features and robust construction. It may be out of reach for some hams.
2. Complexity: The keyer has a lot of features and options, which can be overwhelming for beginners. It may take some time to learn how to use all its features effectively.
3. Size: The keyer is larger than some other keyers on the market, which may be a concern for hams with limited space in their shacks.
Conclusion:The MFJ-434B Voice Contest Keyer is a high-quality, feature-rich keyer that is well-suited for serious contesting. Its advanced features, such as voice recording and playback, adjustable speed, and integrated antenna tuner, make it a powerful tool for contesting. However, its high price and complexity may be a deterrent for some hams. If you are a serious contester with the budget to spare, the MFJ-434B is a great choice. If you are a beginner or have a limited budget, you may want to consider a less expensive, more basic keyer.
Recommendation:If you are a serious contester with the budget to spare and are looking for a high-quality, feature-rich keyer, the MFJ-434B Voice Contest Keyer is a great choice. If you are a beginner or have a limited budget, you may want to consider a less expensive, more basic keyer, such as the Elecraft K3 CW Keyer or the Yaesu FT-450D CW Keyer. These keyers offer many of the same features as the MFJ-434B, but at a lower price point. Ultimately, the best keyer for you will depend on your budget, your experience level, and your specific contesting needs.
No more please repeat.
Dual controls make it easy to tailor audio level to match your voice.
This item may require a signature on delivery. Store frequently used phrases like cw contest this is, you re built in speaker amplifier let's you monitor stored messages.
You can repeat messages continuously and vary the repeat delay from 3 to 500 seconds.
Mfj 434B contest voice keyer this is a new in the box Mfj 434B this new Mfj 434B will save your voice use 8 pin modular or 8 pin round microphone plug.
Makes a great voice beacon and calling cw is so easy. Has jack for remote or computer control using ct, Na, or other program and its interface. A playing message can be halted by pressing the stop button, your Pitt mic button or by your Cox Pitt line. An audio isolation transformer totally eliminates hum and distortion caused by ground loops.
Use 9 volt battery, 9 15 CDC or 110 vac with optional Mfj 1312d, not included but, I have them in stock, 15.
A closure to ground via remote control or computer also halts messages. Let's you select, play and cancel messages. Internal jumpers let you customize it to ken wood, icon, yeas, along or radio shack rigs.
Contest by pressing a few buttons and save your voice. The Mfj 434B is transparent to your microphone your mic audio characteristics do not change when your Mfj 434B is installed.
5mm speaker headphone jack. You can record and play back five natural sounding messages in a total of 75 seconds. Ideas to use just plug in your 8 pin microphone cable and plug the Mfj 434B shielded cable into your transceiver mic connector. Smut technology.
Prom technology keeps messages stored for up to 100 years no battery backup needed. All you pay me is for the item and shipping.