
( Brand: Signal Corps Bendix ), ( Manufacturer Part Number: BC-638-A ), ( Part Type: Meter Receiver )
The Bendix BC-638-A Army Frequency Meter Receiver, manufactured by the Signal Corps, is a versatile and essential communication tool designed primarily for military applications. This receiver is engineered to accurately detect and measure radio frequencies within the HF (High Frequency) band, making it an indispensable asset for military communications operations.
The BC-638-A is a compact and rugged device, built to withstand the rigors of field use. It features a clear and easy-to-read dial, with graduated markings to indicate frequency in both kHz (kilohertz) and MHz (megahertz) units. The dial is accompanied by a scale for measuring modulation depth, ensuring precise calibration and optimized signal reception.
The receiver boasts a robust design, with a sturdy metal casing and a well-protected tuning knob. The tuning mechanism is smooth and precise, enabling the operator to quickly and accurately adjust the frequency setting. The BC-638-A also includes an adjustable BFO (Beat Frequency Oscillator), which allows for more accurate tuning and elimination of beat frequencies when receiving signals with large frequency differences.
The receiver is powered by a single 22.5V battery, which is housed in a separate compartment to ensure the safety of the operator. The battery offers a long operational life, ensuring the BC-638-A remains functional for extended periods in the field.
The BC-638-A is also equipped with a built-in speaker, delivering clear and audible audio output, as well as a 3.5mm headphone jack for private listening or to share the audio output with others. Additionally, the receiver includes an ANT (Automatic Gain Control) feature, which automatically adjusts the receiver's sensitivity based on the strength of the incoming signal, ensuring optimal performance in various radio environments.
In summary, the Bendix BC-638-A Army Frequency Meter Receiver is a high-performing and reliable communication tool designed for military applications. Its accurate frequency measurement, rugged design, long battery life, and easy-to-use features make it an essential piece of equipment for any military communications team.
The Bendix BC-638-A Army Frequency Meter Receiver is a historical communications device used by the US military for monitoring and detecting radio frequencies. Here are some pros and cons of buying this vintage piece of equipment:
Pros:1. Historical Value: This receiver holds significant historical value due to its military background and role in communications technology.
2. Functionality: It can still be used to detect and monitor radio frequencies within its range, though it may require some calibration and maintenance.
3. Educational Opportunity: For hobbyists, students, or professionals in electronics, radio communications, or military history, this device provides an excellent learning experience.
4. Unique and Rare: Owning a vintage military receiver like the BC-638-A can be a conversation starter and a source of pride.
5. Potential Restoration: The device can be an interesting project for electronics enthusiasts who enjoy restoring and refurbishing old equipment.
Cons:1. Limited Compatibility: The BC-638-A is designed to work with specific military frequencies and may not be compatible with modern civilian or commercial radio communications.
2. Lack of Modern Features: The receiver does not offer modern features like digital displays, easy-to-use interfaces, or advanced filtering capabilities.
3. Maintenance and Calibration: The device may require regular maintenance and calibration to ensure accurate frequency detection.
4. Power Source: The receiver requires a unique power source (a specialized battery or power adapter) which might be challenging to find.
5. Cost: The price for this vintage piece of equipment can be high, depending on the condition and rarity.
In conclusion, the Bendix BC-638-A Army Frequency Meter Receiver is an excellent purchase for those interested in military history, electronics, or radio communications. Despite its limitations, the device offers unique features, historical value, and a potential educational opportunity. However, it may not be suitable for those looking for modern functionality or ease of use. Ultimately, the decision to buy this vintage receiver should be based on personal interests, hobbies, and the willingness to invest time and resources into its maintenance and use.
Bendix Signal Corps US Army BC-638-A frequency meter Receiver Untested For Parts.