
( Brand: Ameritron ), ( Model: ABR-704 ), ( Part Type: Radio Amplifier ), ( Frequency Band S : Hf ), ( Country/region Of Manufacture: United States )
The Ameritron ABR-704 is a powerful and versatile linear amplifier designed for amateur radio enthusiasts seeking high-performance output. This all-solid-state amplifier boasts an impressive 700 watts PEP (Peak Envelope Power) on SSB (Single Sideband) and CW (Continuous Wave) modes, making it suitable for a wide range of HF (High Frequency) applications.
The ABR-704 is equipped with a robust cooling system, featuring a large heat sink and two 120mm fans for efficient heat dissipation. This ensures the amplifier operates reliably under heavy load, maintaining stable performance even during prolonged transmissions.
The amplifier features a user-friendly front panel with easy-to-read meters and controls, including a high-quality VSWR (Volts Standing Wave Ratio) meter, SWR warning indicator, and a backlit display for monitoring power output and other vital parameters. The front panel also includes an integrated DC power meter, making it convenient to monitor your power supply.
The ABR-704 employs a high-performance RF transformer and output matching network to deliver exceptional linearity and efficiency, ensuring minimal distortion and maximum power transfer to your antenna. The amplifier is also equipped with automatic bandpass protection, ensuring safe operation even in the event of an incorrectly tuned antenna.
The amplifier is housed in a robust, all-aluminum chassis with a powder-coated finish, providing excellent protection against environmental elements. The ABR-704 is also designed with a rear-mounted interface, allowing easy access to connectors for power input, antenna output, and optional RF filtering.
In summary, the Ameritron ABR-704 is a high-performance, reliable, and versatile linear amplifier, ideal for amateur radio operators seeking powerful and efficient transmission capabilities. Its robust cooling system, user-friendly front panel, and high-quality components make it a great choice for HF communication.
Pros of buying a ABR-704 Ameritron:1. Powerful Amplifier: The ABR-704 is a 1.7kW solid state linear amplifier, making it suitable for long-distance communications and DXing.
2. High-Quality Construction: Ameritron is known for its durability and high-quality construction, which is reflected in the ABR-704's design.
3. Excellent RF Performance: The amplifier has a low-noise figure and high power gain, which can help improve signal clarity and reduce interference.
4. Wide Bandwidth: The ABR-704 can handle a wide range of frequencies, making it versatile for various amateur radio bands.
Cons of buying a ABR-704 Ameritron:1. High Price: The ABR-704 is a high-end amplifier, and its price can be prohibitive for some hobbyists.
2. Large Size: The amplifier is relatively large and heavy, which can be a challenge for those with limited space or mobility.
3. Complex Setup: The ABR-704 requires a complex setup and calibration process, which can be intimidating for beginners.
Conclusion:The ABR-704 Ameritron is a powerful and high-quality linear amplifier that is well-suited for serious amateur radio operators. Its high power output, excellent RF performance, and wide bandwidth make it an attractive choice for long-distance communications and DXing. However, its high price, large size, and complex setup can be significant drawbacks for some hobbyists. Ultimately, whether or not the ABR-704 is a good fit for you depends on your budget, space constraints, and level of experience with amateur radio equipment.
Recommendation:If you are a serious amateur radio operator with a budget to match and have the space and experience to set up and calibrate the ABR-704, then it is definitely worth considering. On the other hand, if you are a beginner or have a limited budget, there are other, more affordable options available that may be a better fit for your needs. In any case, it is always a good idea to do your research and read reviews from other users before making a purchase.
New never used. Only took out of box to take pictures.