1559-B GENERAL RADIO Microphone Reciprocity Calibrator Lab

Review GENERAL RADIO Type Microphone Reciprocity Calibrator Vintage Lab

Introducing the Radio 1559-B Microphone Reciprocity Calibrator, a must-have laboratory instrument for calibrating microphones used in radio communication systems. This precision instrument is designed to ensure accurate and reliable microphone performance, enabling clear and effective communication.

The Radio 1559-B is a reciprocity calibrator, which means it is used to measure and correct for the inconsistencies that can occur when the transmit and receive functions of a microphone are reversed, or reciprocated. This is an essential step in maintaining the quality and consistency of radio communication systems, particularly in mission-critical applications such as aviation, public safety, and military communications.

The calibrator features a built-in reference microphone, which generates a known and stable reference signal. This reference signal is used to compare the output of the microphone under test (MUT) against the known reference, allowing for the calculation of the microphone's gain and distortion characteristics. The calibrator also includes a built-in speaker, which allows for the measurement of the MUT's frequency response and sensitivity.

The Radio 1559-B is designed for ease of use, with a clear and intuitive display that shows the results of the calibration measurements in real-time. The calibrator also includes built-in memory, allowing users to store and recall calibration data for multiple microphones. The instrument is also equipped with a rechargeable battery, providing the user with the flexibility to take the calibrator on the go.

The Radio 1559-B is built to the highest standards of precision and accuracy, with a measurement accuracy of better than 1 dB and a frequency response of 20 Hz to 10 kHz. The instrument is also designed for ruggedness, with a durable and water-resistant enclosure that can withstand the rigors of laboratory use.

In summary, the Radio 1559-B Microphone Reciprocity Calibrator is an indispensable tool for any radio communication laboratory. It enables accurate and reliable calibration of microphones used in radio communication systems, ensuring clear and effective communication in mission-critical applications. With its ease of use, high precision and accuracy, rugged design, and built-in memory and rechargeable battery, the Radio 1559-B is the ideal choice for any laboratory requiring microphone calibration.

A reciprocity calibrator is an essential tool used in radio frequency (RF) testing to ensure accurate microsystem calibration. One such calibrator is the Radio Dynamics Research Lab Model 1559-B. In this discussion, we will explore the pros and cons of purchasing this particular calibrator.

1. High Accuracy: The Model 1559-B is known for its high accuracy, with a temperature stability of 0.01 C and a calibration stability of 0.25 dB. This ensures precise and reliable calibration results.

2. Versatility: This calibrator can be used with a wide range of microphone types, including condenser, dynamic, and ribbon microphones, making it a versatile option for various applications.

3. User-friendly Interface: The calibrator features an easy-to-use interface, with an LCD display and intuitive menus, allowing for straightforward calibration processes.

4. Robust Construction: The Model 1559-B is built with a sturdy aluminum case and is designed for long-term use.

1. Cost: The Radio Dynamics Research Lab Model 1559-B is a high-priced calibrator, which might not be within the budget for smaller organizations or individuals.

2. Size and Weight: This calibrator is relatively large and heavy, making it less portable than some other options in the market.

3. Complexity: Although the user interface is user-friendly, the calibrator itself can be quite complex, which might require some level of expertise to operate effectively.

4. Limited Compatibility: While the calibrator can be used with various microphone types, it may not be compatible with some specialized or older microphone models.

The Radio Dynamics Research Lab Model 1559-B is a high-performance reciprocity calibrator with excellent accuracy and versatility. However, its high cost, size, weight, complexity, and limited compatibility might make it less suitable for some users.

If your organization or application requires a high-accuracy reciprocity calibrator with a wide microphone compatibility range, the Radio Dynamics Research Lab Model 1559-B could be an excellent investment, despite its cost and size limitations. For those with smaller budgets or more compact requirements, alternative options with lower price points and more portability might be more appropriate.

Details:

Please look at all pictures closely before purchasing. Photos are the best. Items may need a more in depth cleaning. I do a lot of business with them and they always have well cared for gear.

Everything you see in the pictures is what included this lot. I did purchase from a local operator. I am not an operator and don't have the knowledge to fully test myself. Not saying it won't need adjustments but, looks like a nice clean unit.

specifications busitestercalib:

• brand: General Radio
• mpn: 1559-b
• part type: Microphone Radio
• country/region of manufacture: United States

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• class: standard
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• city: federal way, washington
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• category: Business & Industrial > Test, Measurement Inspection > Testers Calibrators

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• quantity: 1
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• started: june 18, 2025